Retortplusplus.org

Sauerbraten (a.k.a. Cube 2) is a free multiplayer/singleplayer first person shooter, built as a major redesign of the Cube FPS.
Much like the original Cube, the aim of this game is not necessarily to produce the most features & eyecandy possible, but rather to allow map/geometry editing to be done dynamically in-game, to create fun gameplay and an elegant engine.
The engine supporting the game is entirely original in code & design, and its code is Open Source (ZLIB license, read the docs for more on how you can use the engine).

Second Life is a 3-D virtual world entirely built and owned by its residents. Since opening to the public in 2003, it has grown explosively and today is inhabited by a total of 6,642,422 people from around the globe.

Linden Lab is making the source code for the Second Life Viewer available to everyone. Talented developers from around the world will be able to collaborate with Linden Lab to refine and enhance the experience for all residents of Second Life.

CinePaint is a collection of free open source software tools for deep paint manipulation and image processing. CinePaint is used for motion picture frame-by-frame retouching, dirt removal, wire rig removal, render repair, background plates, and 3d model textures. It's been used on many feature films, including The Last Samurai where it was used to add flying arrows. It's also being used by pro photographers who need greater color fidelity than is available in other tools.

The Xith3d project consists of powerful middleware consisting of a scenegraph and an extensible renderer. The goal is to create a lean and performative scenegraph and renderer while at the same time allowing for extensions and enchancements to all stages of the rendering pipeline.
You can think of it as a 3D engine. It allows to create games, or any application requiring a 3D visualization. It's versatile, usable with JOGL or LWJGL, embeddable in AWT, Swing, SWT (Eclipse).
It has support for physics engine (JOODE), and many development facilities.
It's fast and easy-to-use.

MakeHuman is completely free, innovative and professional software for the modelling of 3-Dimensional characters. The features that make this software unique are the new tetra-parametric GUI (c) components and the Natural Pose System (c), for advanced muscular simulation. Using MakeHuman a photorealistic character can be modeled in less than 2 minutes; MakeHuman is released under an Open Source Licence, and is available for Windows, Mac OS X and Linux.

The Axiom 3D Engine is an open-source, cross-platform 3D graphics rendering engine for .NET and Mono. The engine is a high-performance C# port of the powerful OGRE engine. Its flexible component-oriented architecture allows easy extension and provides full support for both DirectX and OpenGL. The engine is also cross platform supporting both Windows and Linux operating systems.

Crystal Core is a single player shooter with puzzle elements and a strong story. It is based on a science fiction setting. The game is Open Source and serves as an important tutorial on how to use Crystal Space and Crystal Entity Layer.

Structure Synth is an application for creating 3D structures from a set of user specified rules. It is an attempt to make a 3D version of Context Free.

It is built in C++, OpenGL, and Qt 4.3. Builds are currently provided for Windows and Mac. It is possible to compile Structure Synth on Linux as well.

As of now this project is usable, but it is still beta quality (although it is quite stable, not all planned features are completed). The progress and design considerations can be tracked at the Syntopia blog.

ARToolKit is a software library for building Augmented Reality (AR) applications. These are applications that involve the overlay of virtual imagery on the real world. For example, in the image to the right a three-dimensional virtual character appears standing on a real card. It can be seen by the user in the head set display they are wearing. When the user moves the card, the virtual character moves with it and appears attached to the real object.

One of the key difficulties in developing Augmented Reality applications is the problem of tracking the users viewpoint. In order to know from what viewpoint to draw the virtual imagery, the application needs to know where the user is looking in the real world.

ARToolKit uses computer vision algorithms to solve this problem. The ARToolKit video tracking libraries calculate the real camera position and orientation relative to physical markers in real time. This enables the easy development of a wide range of Augmented Reality applications. Some of the features of ARToolKit include:

* Single camera position/orientation tracking.
* Tracking code that uses simple black squares.
* The ability to use any square marker patterns.
* Easy camera calibration code.
* Fast enough for real time AR applications.
* SGI IRIX, Linux, MacOS and Windows OS distributions.
* Distributed with complete source code.

MeshLab is an open source, portable, and extensible system for the processing and editing of unstructured 3D triangular meshes.
The system is aimed to help the processing of the typical not-so-small unstructured models arising in 3D scanning, providing a set of tools for editing, cleaning, healing, inspecting, rendering and converting this kind of meshes.
The system is heavily based on the VCG library developed at the Visual Computing Lab of ISTI - CNR, for all the core mesh processing tasks and it is available for Windows, Linux (src) and MacOSX (intel only). The MeshLab system started in late 2005 as a part of the FGT course of the Computer Science department of University of Pisa and most of the code (~15k lines) of the first versions was written by a handful of willing students. The following years FGT students have continued to work to this project implementing more and more features.

High performance 3D engine for Flash 8 and Flash 9.
Features linear texture mapping, optimized for rendering speed and quality. It has been designed to be simple and easy to use.

PulseAudio is a networked sound server for POSIX and Win32 systems. A sound server is basically a proxy for your sound applications. It allows you to do advanced operations on your sound data as it passes between your application and your hardware. Things like transferring the audio to a different machine, changing the sample format or channel count and mixing several sounds into one are easily achieved using a sound server.

PulseAudio has been tested on Linux, Solaris, FreeBSD, Windows 2000 and Windows XP. It should also run on all other POSIX and Windows systems, but may require new backends to handle their sound systems.

Features
- Module autoloading
- Support for more than one sink/source
- Good low latency behaviour
- Very accurate latency measurement for playback and recording.
- Client side latency interpolation
- Embedabble into other software (the core is available as C library)
- Completely asynchronous C API, complemented by two synchronous variants for simple use in synchronous applications
- Simple command line interface for reconfiguring the daemon while running
- Flexible, implicit sample type conversion and resampling
- "Zero-Copy" architecture
- May be used to combine multiple sound cards to one (with sample rate adjustment)
- Ability to fully synchronize multiple playback streams

The GNU Image Manipulation Program, or GIMP, is a free raster graphics editor used to process digital graphics and photographs. Typical uses include creating graphics and logos, resizing and cropping photos, altering colors, combining multiple images, removing unwanted image features, and converting between different image formats. GIMP can also be used to create basic animated images in GIF format. It is often used as a free software replacement for Adobe Photoshop, the most widely used bitmap editor in the printing and graphics industries; however, it is not designed to be a Photoshop clone.

F-Spot is a full-featured personal photo management application for the GNOME desktop (http://www.gnome.org/).
F-Spot simplifies digital photography by providing intuitive tools to help you share, touch-up, find and organize your images.

digiKam is an advanced digital photo management application for KDE desktop, which makes importing and organizing digital photos a "snap". The photos can be organized in albums which can be sorted chronologically, by directory layout or by custom collections.

Tired of the directory constraints? Don’t worry, digiKam also provides tagging functionality. You tag your images which can be spread out across multiple folders and digiKam provides fast and intuitive ways to browse these tagged images. You can also add comments to your images. digiKam makes use of a fast and robust database to store these meta-informations which makes adding and editing of comments and tags very reliable.

Gallery is the next generation of open source photo sharing web applications. Gallery gives you an intuitive way to blend photo management seamlessly into your own website whether you're running a small personal site or a large community site. Hundreds of thousands of people and organizations are using Gallery to create personalized photo albums on their websites.

Gwenview is a fast and easy to use image viewer/browser for KDE. All common image formats are supported. Standard features include slideshow, full screen view, image thumbnails, drag'n'drop, image zoom, and full network transparency using the KIO framework. It also provides image and directory KParts components for use in applications such as Konqueror. Additional features are provided by the KIPI image framework.

The Eye of GNOME image viewer is the official image viewer for the GNOME Desktop environment. With it, you can view single image files, as well as large image collections.

Hugin is a toolkit for stitching photographs and assembling panoramas, together with an easy to use graphical front end.

CinePaint is a collection of free open source software tools for deep paint manipulation and image processing. CinePaint is used for motion picture frame-by-frame retouching, dirt removal, wire rig removal, render repair, background plates, and 3d model textures. It's been used on many feature films, including The Last Samurai where it was used to add flying arrows. It's also being used by pro photographers who need greater color fidelity than is available in other tools.

The UFRaw (Unidentified Flying Raw) is a tool for reading and manipulating raw images from digital cameras. It supports most of the existing raw formats (any format supported by DCRaw). UFRaw can be used on its own or as a Gimp plug-in.

KompoZer is a complete web authoring system that combines web file management and easy-to-use WYSIWYG web page editing.

KompoZer is designed to be extremely easy to use, making it ideal for non-technical computer users who want to create an attractive, professional-looking web site without needing to know HTML or web coding.

jEdit is an Open Source text editor written in Java. It has many useful features, such as syntax highlighting, bracket matching, regular expression searching, multiple file search and replace, folding, and keyboard macros. jEdit also includes a powerful plugin architecture that allows more than 80 plugins to be downloaded and installed from within the editor.

DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and eases the creation of structured texts. All data is stored in plain text files – no database is required.

Web development software built on Eclipse. Has gotten over 3000 diggs and 1.9 million downloads. Has been called Dreamweaver killer. Has XHTML, CSS, AJAX, Javascript, and FTP support, and many more features. A must have to all web developers!

Qt is a cross-platform (Windows, Unix, MacOs X) graphical toolkit.
Qt features a rich API to write GUI software, but also for other aspect of application development : network classes, xml, internationalisation, database, ...

The KDevelop project was founded in 1998 to build up an easy to use IDE (Integrated Development Environment) for KDE. Since then, the KDevelop IDE is publicly available under the GPL and supports many programming languages.

Google Web Toolkit (GWT) is an open source Java software development framework that makes writing AJAX applications like Google Maps and Gmail easy for developers who don't speak browser quirks as a second language. Writing dynamic web applications today is a tedious and error-prone process; you spend 90% of your time working around subtle incompatibilities between web browsers and platforms.

CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. If you're a developer who lives in the real world of shared hosting accounts and clients with deadlines, and if you're tired of ponderously large and thoroughly undocumented frameworks.

Serendipity is a Weblog application which aims at giving you an easy way to maintain your own individual diary or personal homepage. It ships with a variety of plugins to plug-and-play with your blog.
Serendipity is PHP-powered and aims for flexibility, scalability, security and ease of use.

Bluefish is a text editor targeted towards programmers and webdesigners

Bluefish is an open source project, released under the GNU GPL licence. Bluefish development is mostly coordinated on the bluefish-dev mailinglist (see below). On the list, both users, developers and testers can give their opinion on new features, bug fixes and GUI improvements.

Multimedia player for Linux also available in a Mac OS X and Windows version with AAC/MP4 decoding through FAAD2.

* Edit with flexibility and speed
* Create Effects in real time
* Animate with unlimited features
* Paint and design on moving video
* Create music with all the tools the pros use
* Work in any format at any resolution

Synfig is a powerful, industrial-strength vector-based 2D animation software package, designed from the ground-up for producing feature-film quality animation with fewer people and resources. While there are many other programs currently on the market to aid with the efficient production of 2D animation, we are currently unaware of any other software that can do what our software can.

Avidemux is a free video editor designed for simple cutting, filtering and encoding tasks. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs. Tasks can be automated using projects, job queue and powerful scripting capabilities.

Avidemux is available for Linux, BSD, Mac OS X and Microsoft Windows under the GNU GPL license. The program was written from scratch by Mean, but code from other people and projects has been used as well. Patches, translations and even bug reports are always welcome.

Vivia is a video editing program for Linux and Windows that offers very user-friendly editing of DV video material. Vivia allows you to edit videos, cut out important sequences, add effects etc. Vivia can handle both AVI and DV files and has a recovery function that restores you files should the tool crash. Features:

* Efficient and easy editing of clips and transitions
* "Multi-cam" edit mode: support for natural editing of scenes that were recorded by multiple cameras simultaneously, as is typical in music videos and interviews
* Support for multiple "scenes" in a single project

HandBrake is an open-source, GPL-licensed, cross-platform, multithreaded DVD to MPEG-4 converter, available for MacOS X, Linux and Windows.

Kino is a non-linear DV (digital video) editor for GNU/Linux. It features integration with IEEE-1394 for capture, VTR control, and recording back to the camera. It captures video to disk in RawDV and AVI format, in both type-1 DV and type-2 DV (separate audio stream) encodings. You can load multiple video clips, cut and paste portions of video/audio, and save to an edit decision list (SMIL XML format). Most edit and navigation commands are mapped to equivalent vi key commands. Also, Kino can load movies and export the composite movie in a number of formats: DV over IEEE 1394, Raw DV, DV AVI, still frames, WAV, MP3, Ogg Vorbis, MPEG-1, MPEG-2, and DivX. Still frame export uses Imlib1, which has built-in support for PPM, JPEG, PNG, TIFF, GIF, and whatever your ImageMagick installation support.

Miro is a free application that turns your computer into an internet TV video player. Downloads are available for Windows, Mac, and Linux. Miro is still in beta which means that there are some bugs, but we're moving quickly to fix them and will be releasing updates on a regular basis.

Cinelerra is a professional non-linear video editing system. It is designed for the GNU/Linux operating system, but has also been successfully ported to Mac OS X. No support is provided for any version of Microsoft Windows. It is produced by Heroine Virtual, and is free software distributed under the GNU General Public License. Cinelerra also includes a video compositing engine, allowing the user to perform common compositing operations such as keying and mattes.

Cinelerra was first released August 1, 2002, and was based in part on an earlier product known as Broadcast 2000. Broadcast 2000 was withdrawn by Heroine Virtual in September 2001[1].

As a professional editing program, Cinelerra requires significant computing power.

Scribus is an open-source program that brings award-winning professional page layout to Linux/Unix, MacOS X, OS/2 and Windows desktops with a combination of "press-ready" output and new approaches to page layout. Underneath the modern and user friendly interface, Scribus supports professional publishing features, such as CMYK color, separations, ICC color management and versatile PDF creation.

KOffice is a free, integrated office suite for KDE, the K Desktop Environment. KOffice applications uses OpenDocument as their native file format when possible. The suite is released separately from KDE.

The KOffice suite includes the following applications:
- KWord - A frame-based word processor
- KSpread - A powerful spreadsheet application
- KPresenter - A full-featured presentation program
- Kexi - An environment for creating databases and applications
- Kivio - A Visio®-style flowcharting application
- Karbon14 - A vector drawing application
- Krita - A layered pixel image manipulation application
- KPlato - An integrated project management and planning tool
- KChart - A graph and chart drawing tool
- KFormula - A formula editor
- Kugar - A tool for generating reports

This HTML text editor brings to the web many of the powerful functionalities of desktop editors like MS Word. It's lightweight and doesn't require any kind of installation on the client computer.

AbiWord is a free word processing program similar to Microsoft(R) Word. It is suitable for a wide variety of word processing tasks.

Create 3D models and share them with the world
Google SketchUp is software that you can use to create 3D models of anything you like.

Wings 3D is a subdivision modeller with an user interface that is easy to use for both beginners and advanced users (inspired by Nendo and Mirai from Izware).

What is Axel ?
Axel is an algebraic geometric modeler developed in the research team Galaad, which aim is to provide “algebraic modeling” tools for the manipulation and computation with implicit and parametric curves or surfaces. Its primary goal is to embed Synaps algebraic capabilities to provide new modeling techniques.
What can Axel do ?

* Topology : compute the certified topology of curves and surfaces with either implicit or parametric representation
* Intersections : compute the intersection of implicit or parametric curves or surfaces
* Self-intersections : compute the self-intersections of parametric surfaces whatever their parameterization
* Singularities : compute the singularities of algebraic surfaces
* Differential modeling : derivative curves, graphed surfaces
* Set theoretic modeling : boolean operations, arrangements

OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine written in C++ designed to make it easier and more intuitive for developers to produce applications utilizing hardware-accelerated 3D graphics. The class library abstracts all the details of using the underlying system libraries like Direct3D and OpenGL and provides an interface based on world objects.

Animata is an open source real-time animation software, designed to create animations, interactive background projections for concerts, theatre and dance performances.

Sauerbraten (a.k.a. Cube 2) is a free multiplayer/singleplayer first person shooter, built as a major redesign of the Cube FPS.
Much like the original Cube, the aim of this game is not necessarily to produce the most features & eyecandy possible, but rather to allow map/geometry editing to be done dynamically in-game, to create fun gameplay and an elegant engine.
The engine supporting the game is entirely original in code & design, and its code is Open Source (ZLIB license, read the docs for more on how you can use the engine).

Second Life is a 3-D virtual world entirely built and owned by its residents. Since opening to the public in 2003, it has grown explosively and today is inhabited by a total of 6,642,422 people from around the globe.

Linden Lab is making the source code for the Second Life Viewer available to everyone. Talented developers from around the world will be able to collaborate with Linden Lab to refine and enhance the experience for all residents of Second Life.

CinePaint is a collection of free open source software tools for deep paint manipulation and image processing. CinePaint is used for motion picture frame-by-frame retouching, dirt removal, wire rig removal, render repair, background plates, and 3d model textures. It's been used on many feature films, including The Last Samurai where it was used to add flying arrows. It's also being used by pro photographers who need greater color fidelity than is available in other tools.

The Xith3d project consists of powerful middleware consisting of a scenegraph and an extensible renderer. The goal is to create a lean and performative scenegraph and renderer while at the same time allowing for extensions and enchancements to all stages of the rendering pipeline.
You can think of it as a 3D engine. It allows to create games, or any application requiring a 3D visualization. It's versatile, usable with JOGL or LWJGL, embeddable in AWT, Swing, SWT (Eclipse).
It has support for physics engine (JOODE), and many development facilities.
It's fast and easy-to-use.

MakeHuman is completely free, innovative and professional software for the modelling of 3-Dimensional characters. The features that make this software unique are the new tetra-parametric GUI (c) components and the Natural Pose System (c), for advanced muscular simulation. Using MakeHuman a photorealistic character can be modeled in less than 2 minutes; MakeHuman is released under an Open Source Licence, and is available for Windows, Mac OS X and Linux.

Crystal Core is a single player shooter with puzzle elements and a strong story. It is based on a science fiction setting. The game is Open Source and serves as an important tutorial on how to use Crystal Space and Crystal Entity Layer.

Structure Synth is an application for creating 3D structures from a set of user specified rules. It is an attempt to make a 3D version of Context Free.

It is built in C++, OpenGL, and Qt 4.3. Builds are currently provided for Windows and Mac. It is possible to compile Structure Synth on Linux as well.

As of now this project is usable, but it is still beta quality (although it is quite stable, not all planned features are completed). The progress and design considerations can be tracked at the Syntopia blog.

ARToolKit is a software library for building Augmented Reality (AR) applications. These are applications that involve the overlay of virtual imagery on the real world. For example, in the image to the right a three-dimensional virtual character appears standing on a real card. It can be seen by the user in the head set display they are wearing. When the user moves the card, the virtual character moves with it and appears attached to the real object.

One of the key difficulties in developing Augmented Reality applications is the problem of tracking the users viewpoint. In order to know from what viewpoint to draw the virtual imagery, the application needs to know where the user is looking in the real world.

ARToolKit uses computer vision algorithms to solve this problem. The ARToolKit video tracking libraries calculate the real camera position and orientation relative to physical markers in real time. This enables the easy development of a wide range of Augmented Reality applications. Some of the features of ARToolKit include:

* Single camera position/orientation tracking.
* Tracking code that uses simple black squares.
* The ability to use any square marker patterns.
* Easy camera calibration code.
* Fast enough for real time AR applications.
* SGI IRIX, Linux, MacOS and Windows OS distributions.
* Distributed with complete source code.

MeshLab is an open source, portable, and extensible system for the processing and editing of unstructured 3D triangular meshes.
The system is aimed to help the processing of the typical not-so-small unstructured models arising in 3D scanning, providing a set of tools for editing, cleaning, healing, inspecting, rendering and converting this kind of meshes.
The system is heavily based on the VCG library developed at the Visual Computing Lab of ISTI - CNR, for all the core mesh processing tasks and it is available for Windows, Linux (src) and MacOSX (intel only). The MeshLab system started in late 2005 as a part of the FGT course of the Computer Science department of University of Pisa and most of the code (~15k lines) of the first versions was written by a handful of willing students. The following years FGT students have continued to work to this project implementing more and more features.

Simple sound recording tool.

Ardour is a digital audio workstation. You can use it to record, edit and mix multi-track audio. You can produce your own CDs, mix video soundtracks, or just experiment with new ideas about music and sound.

Ardour capabilities include: multichannel recording, non-destructive editing with unlimited undo/redo, full automation support, a powerful mixer, unlimited tracks/busses/plugins, timecode synchronization, and hardware control from surfaces like the Mackie Control Universal. If you've been looking for a tool similar to ProTools, Nuendo, Pyramix, or Sequoia, you might have found it.

Above all, Ardour strives to meet the needs of professional users. This means implementing all the "hard stuff" that other DAWs ( even some leading commercial apps ) handle incorrectly or not at all. Ardour has a completely flexible "anything to anywhere" routing system, and will allow as many physical I/O ports as your system allows. Ardour supports a wide range of audio-for-video features such as video-synced playback and pullup/pulldown sample rates. You will also find powerful features such as "persistent undo", multi-language support, and destructive track punching modes that aren't available on other platforms.

The GNU Image Manipulation Program, or GIMP, is a free raster graphics editor used to process digital graphics and photographs. Typical uses include creating graphics and logos, resizing and cropping photos, altering colors, combining multiple images, removing unwanted image features, and converting between different image formats. GIMP can also be used to create basic animated images in GIF format. It is often used as a free software replacement for Adobe Photoshop, the most widely used bitmap editor in the printing and graphics industries; however, it is not designed to be a Photoshop clone.

Fast image viewer and image browser. Xee is a lightweight, fast and convenient image viewer and browser. It is designed to be a serious tool for image viewing and management, with a sleek and powerful interface.

Xee is useful as a more powerful replacement for Preview, or most any other image viewer available on Mac OS X. It is very fast, and uses less memory than most other image viewing tools. It also uses OpenGL to display and scroll images much more smoothly than other viewers. Its interface is highly streamlined and has easily configurable keyboard shortcuts.

Pixen is an innovative graphics editor for the Mac. It's designed from top to bottom for pixel artists—people who make low-resolution raster art like the sprites you see in old video games. But it's great for artists of all arenas: Pixen is like a very powerful MSPaint or a simpler, more agile Photoshop. And best of all, it's Free!

Pipette is a handy utility for digital artists and web designers. It allows you to quickly and easily grab the colour of any pixel on the screen and copy it in hex format, as used in CSS files, or in paint programs, such as Adobe Photoshop.
Pipette is a very easy to use, lightweight application - in keeping with Unix philosophy it does one thing and does it well.

An open source application for the digital photo workflow, the blueMarine project will provide you an all-in-one tool for managing your photos, from the shoot up to the archiving and beyond. blueMarine is an expandable, open platform and includes specific support for different photographers communities, as well as the latest technologies. The blueMarine project is very similar to existing applications such as Adobe Lightroom or Apple Aperture: a photo browser, which can be explored in different ways (by folder, by calendar, by tags, by galleries).

Gallery is the next generation of open source photo sharing web applications. Gallery gives you an intuitive way to blend photo management seamlessly into your own website whether you're running a small personal site or a large community site. Hundreds of thousands of people and organizations are using Gallery to create personalized photo albums on their websites.

Hugin is a toolkit for stitching photographs and assembling panoramas, together with an easy to use graphical front end.

CinePaint is a collection of free open source software tools for deep paint manipulation and image processing. CinePaint is used for motion picture frame-by-frame retouching, dirt removal, wire rig removal, render repair, background plates, and 3d model textures. It's been used on many feature films, including The Last Samurai where it was used to add flying arrows. It's also being used by pro photographers who need greater color fidelity than is available in other tools.

Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file.
* Viewing PDFs
* Adding and editing notes
* Highlighting important text
* Making "snapshots" for easy reference
* Navigation using table of contents or thumbnails
* View all your notes and highlights
* Convenient reading in full screen
* Giving powerful presentations
* Handy preview of internal links
* Focus using a reading bar
* Magnification tool
* Extensive AppleScript support
* Bookmarks
* Support for Apple Remote Control
* Interaction with LaTeX and PDFSync
* Spotlight support
* Highly customizable
* And much more...

The UFRaw (Unidentified Flying Raw) is a tool for reading and manipulating raw images from digital cameras. It supports most of the existing raw formats (any format supported by DCRaw). UFRaw can be used on its own or as a Gimp plug-in.

Seashore is an open source image editor for Cocoa. It features gradients, textures and anti-aliasing for both text and brush strokes. It supports multiple layers and alpha channel editing. It is based around the GIMP's technology and uses the same native file format.

Quartz Composer is a groundbreaking graphics development environment that allows you to explore the incredible power of the graphics stack of Mac OS X Tiger. With Quartz Composer, you can easily combine the capabilities of Cocoa, Quartz 2D, Core Image, OpenGL, and QuickTime, all using an approachable visual programming paradigm. Use Quartz Composer to prototype Core Image filters, build engaging screen savers, create custom user-interface widgets, make data-driven visual effects, and even perform live performance animations.

Modified version of GIMP to make the user interface seem more like photoshop.

Vectorial drawing for the rest of us!
With DrawBerry, you have all the possibilities the vectorial drawing offers you in a free, easy to use and powerful application. If you don't need applications such Illustrator or Inkscape and you want to create some simple (or less simple) illustrations, DrawBerry is for you.

With layers, powerful tools, inspectors and workspace, DrawBerry is a complete and easy-to-use drawing solution. Moreover, CoreImage filters, based on a great Apple technology, offer you new ways to improve your drawing, extending the possibilities to the infinite ...

Some great exclusive features, like the magnifying glass or the undo history, will help you to draw more and more accurately

All of this make DrawBerry a great drawing software. Just try it ...

Nvu is a standalone 'WYSIWYG' (WhatYouSeeIsWhatYouGet) HTML editor based on Gecko, Mozilla's rendering engine.

KompoZer is a complete web authoring system that combines web file management and easy-to-use WYSIWYG web page editing.

KompoZer is designed to be extremely easy to use, making it ideal for non-technical computer users who want to create an attractive, professional-looking web site without needing to know HTML or web coding.

jEdit is an Open Source text editor written in Java. It has many useful features, such as syntax highlighting, bracket matching, regular expression searching, multiple file search and replace, folding, and keyboard macros. jEdit also includes a powerful plugin architecture that allows more than 80 plugins to be downloaded and installed from within the editor.

DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and eases the creation of structured texts. All data is stored in plain text files – no database is required.

Web development software built on Eclipse. Has gotten over 3000 diggs and 1.9 million downloads. Has been called Dreamweaver killer. Has XHTML, CSS, AJAX, Javascript, and FTP support, and many more features. A must have to all web developers!

Processing is an open source programming language and environment for people who want to program images, animation, and interactions. It is used by students, artists, designers, researchers, and hobbyists for learning, prototyping, and production. It is created to teach fundamentals of computer programming within a visual context and to serve as a software sketchbook and professional production tool. Processing is an alternative to proprietary software tools in the same domain.

Qt is a cross-platform (Windows, Unix, MacOs X) graphical toolkit.
Qt features a rich API to write GUI software, but also for other aspect of application development : network classes, xml, internationalisation, database, ...

Google Web Toolkit (GWT) is an open source Java software development framework that makes writing AJAX applications like Google Maps and Gmail easy for developers who don't speak browser quirks as a second language. Writing dynamic web applications today is a tedious and error-prone process; you spend 90% of your time working around subtle incompatibilities between web browsers and platforms.

CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. If you're a developer who lives in the real world of shared hosting accounts and clients with deadlines, and if you're tired of ponderously large and thoroughly undocumented frameworks.

Serendipity is a Weblog application which aims at giving you an easy way to maintain your own individual diary or personal homepage. It ships with a variety of plugins to plug-and-play with your blog.
Serendipity is PHP-powered and aims for flexibility, scalability, security and ease of use.

Bluefish is a text editor targeted towards programmers and webdesigners

Bluefish is an open source project, released under the GNU GPL licence. Bluefish development is mostly coordinated on the bluefish-dev mailinglist (see below). On the list, both users, developers and testers can give their opinion on new features, bug fixes and GUI improvements.

Multimedia player for Linux also available in a Mac OS X and Windows version with AAC/MP4 decoding through FAAD2.

* Edit with flexibility and speed
* Create Effects in real time
* Animate with unlimited features
* Paint and design on moving video
* Create music with all the tools the pros use
* Work in any format at any resolution

Synfig is a powerful, industrial-strength vector-based 2D animation software package, designed from the ground-up for producing feature-film quality animation with fewer people and resources. While there are many other programs currently on the market to aid with the efficient production of 2D animation, we are currently unaware of any other software that can do what our software can.

Avidemux is a free video editor designed for simple cutting, filtering and encoding tasks. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs. Tasks can be automated using projects, job queue and powerful scripting capabilities.

Avidemux is available for Linux, BSD, Mac OS X and Microsoft Windows under the GNU GPL license. The program was written from scratch by Mean, but code from other people and projects has been used as well. Patches, translations and even bug reports are always welcome.

FrameByFrame lets you create stop-motion animation videos using any webcam/video camera connected to your Mac, including iSight. Just take some pictures and in a matter of seconds you‘ve got your very own stop-motion QuickTime movie!

HandBrake is an open-source, GPL-licensed, cross-platform, multithreaded DVD to MPEG-4 converter, available for MacOS X, Linux and Windows.

Miro is a free application that turns your computer into an internet TV video player. Downloads are available for Windows, Mac, and Linux. Miro is still in beta which means that there are some bugs, but we're moving quickly to fix them and will be releasing updates on a regular basis.

Quartz Composer is a groundbreaking graphics development environment that allows you to explore the incredible power of the graphics stack of Mac OS X Tiger. With Quartz Composer, you can easily combine the capabilities of Cocoa, Quartz 2D, Core Image, OpenGL, and QuickTime, all using an approachable visual programming paradigm. Use Quartz Composer to prototype Core Image filters, build engaging screen savers, create custom user-interface widgets, make data-driven visual effects, and even perform live performance animations.

Cinelerra is a professional non-linear video editing system. It is designed for the GNU/Linux operating system, but has also been successfully ported to Mac OS X. No support is provided for any version of Microsoft Windows. It is produced by Heroine Virtual, and is free software distributed under the GNU General Public License. Cinelerra also includes a video compositing engine, allowing the user to perform common compositing operations such as keying and mattes.

Cinelerra was first released August 1, 2002, and was based in part on an earlier product known as Broadcast 2000. Broadcast 2000 was withdrawn by Heroine Virtual in September 2001[1].

As a professional editing program, Cinelerra requires significant computing power.

NeoOffice is a fully-featured set of office applications (including word processing, spreadsheet, presentation, drawing, and database programs) for Mac OS X. Based on the OpenOffice.org office suite, NeoOffice has integrated dozens of native Mac features and can import, edit, and exchange files with other popular office programs such as Microsoft Office.

Released as free, open-source software under the GNU General Public License (GPL), NeoOffice is fully functional and stable enough for everyday use. The software is actively developed, so improvements and small updates are made available on a regular basis.

OpenOffice.org 3 is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers. It stores all your data in an international open standard format and can also read and write files from other common office software packages. It can be downloaded and used completely free of charge for any purpose.

Scribus is an open-source program that brings award-winning professional page layout to Linux/Unix, MacOS X, OS/2 and Windows desktops with a combination of "press-ready" output and new approaches to page layout. Underneath the modern and user friendly interface, Scribus supports professional publishing features, such as CMYK color, separations, ICC color management and versatile PDF creation.

This HTML text editor brings to the web many of the powerful functionalities of desktop editors like MS Word. It's lightweight and doesn't require any kind of installation on the client computer.

OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine written in C++ designed to make it easier and more intuitive for developers to produce applications utilizing hardware-accelerated 3D graphics. The class library abstracts all the details of using the underlying system libraries like Direct3D and OpenGL and provides an interface based on world objects.

To introduce 3D artists from around the world to Houdini, Side Effects Software Inc. is proud to bring you the Houdini Apprentice program, which gives you access to the same creative power used by the best animation professionals in the industry such as Electronic Arts, Sony Pictures Imageworks and Disney Feature Animation. Houdini Apprentice is unlike any other learning package. Once you have downloaded the non-commercial Apprentice Edition software, you can use it to run ALL products in the Houdini family, including Houdini Master, Houdini Escape, Houdini Select and Houdini Halo. All your work can be saved to a special Apprentice file format so you can develop real projects then render with unobtrusive watermarks.

Animata is an open source real-time animation software, designed to create animations, interactive background projections for concerts, theatre and dance performances.

Sauerbraten (a.k.a. Cube 2) is a free multiplayer/singleplayer first person shooter, built as a major redesign of the Cube FPS.
Much like the original Cube, the aim of this game is not necessarily to produce the most features & eyecandy possible, but rather to allow map/geometry editing to be done dynamically in-game, to create fun gameplay and an elegant engine.
The engine supporting the game is entirely original in code & design, and its code is Open Source (ZLIB license, read the docs for more on how you can use the engine).

The Visualization ToolKit (VTK) is an open source, freely available software system for 3D computer graphics, image processing, and visualization used by thousands of researchers and developers around the world. VTK consists of a C++ class library, and several interpreted interface layers including Tcl/Tk, Java, and Python. Professional support and products for VTK are provided by Kitware, Inc.

Second Life is a 3-D virtual world entirely built and owned by its residents. Since opening to the public in 2003, it has grown explosively and today is inhabited by a total of 6,642,422 people from around the globe.

Linden Lab is making the source code for the Second Life Viewer available to everyone. Talented developers from around the world will be able to collaborate with Linden Lab to refine and enhance the experience for all residents of Second Life.

The Xith3d project consists of powerful middleware consisting of a scenegraph and an extensible renderer. The goal is to create a lean and performative scenegraph and renderer while at the same time allowing for extensions and enchancements to all stages of the rendering pipeline.
You can think of it as a 3D engine. It allows to create games, or any application requiring a 3D visualization. It's versatile, usable with JOGL or LWJGL, embeddable in AWT, Swing, SWT (Eclipse).
It has support for physics engine (JOODE), and many development facilities.
It's fast and easy-to-use.

MakeHuman is completely free, innovative and professional software for the modelling of 3-Dimensional characters. The features that make this software unique are the new tetra-parametric GUI (c) components and the Natural Pose System (c), for advanced muscular simulation. Using MakeHuman a photorealistic character can be modeled in less than 2 minutes; MakeHuman is released under an Open Source Licence, and is available for Windows, Mac OS X and Linux.

The Axiom 3D Engine is an open-source, cross-platform 3D graphics rendering engine for .NET and Mono. The engine is a high-performance C# port of the powerful OGRE engine. Its flexible component-oriented architecture allows easy extension and provides full support for both DirectX and OpenGL. The engine is also cross platform supporting both Windows and Linux operating systems.

Crystal Core is a single player shooter with puzzle elements and a strong story. It is based on a science fiction setting. The game is Open Source and serves as an important tutorial on how to use Crystal Space and Crystal Entity Layer.

NeoAxis Engine is an all-purpose, modern 3D graphics engine for 3D simulations, visualizations and games.

NeoAxis Engine is a complete integrated development environment for creating interactive 3D graphics including 3D virtual worlds, AAA games, and realistic simulations. The system comprised of both a real-time 3D engine and a suite of full featured tools.

NeoAxis Engine is a top-notch technology, which can be easily adapted to various projects because of its elaborate software design and flexible tools. Many of our customers claim that they have never before seen such extremely effective, easy to understand code.

Structure Synth is an application for creating 3D structures from a set of user specified rules. It is an attempt to make a 3D version of Context Free.

It is built in C++, OpenGL, and Qt 4.3. Builds are currently provided for Windows and Mac. It is possible to compile Structure Synth on Linux as well.

As of now this project is usable, but it is still beta quality (although it is quite stable, not all planned features are completed). The progress and design considerations can be tracked at the Syntopia blog.

ARToolKit is a software library for building Augmented Reality (AR) applications. These are applications that involve the overlay of virtual imagery on the real world. For example, in the image to the right a three-dimensional virtual character appears standing on a real card. It can be seen by the user in the head set display they are wearing. When the user moves the card, the virtual character moves with it and appears attached to the real object.

One of the key difficulties in developing Augmented Reality applications is the problem of tracking the users viewpoint. In order to know from what viewpoint to draw the virtual imagery, the application needs to know where the user is looking in the real world.

ARToolKit uses computer vision algorithms to solve this problem. The ARToolKit video tracking libraries calculate the real camera position and orientation relative to physical markers in real time. This enables the easy development of a wide range of Augmented Reality applications. Some of the features of ARToolKit include:

* Single camera position/orientation tracking.
* Tracking code that uses simple black squares.
* The ability to use any square marker patterns.
* Easy camera calibration code.
* Fast enough for real time AR applications.
* SGI IRIX, Linux, MacOS and Windows OS distributions.
* Distributed with complete source code.

MeshLab is an open source, portable, and extensible system for the processing and editing of unstructured 3D triangular meshes.
The system is aimed to help the processing of the typical not-so-small unstructured models arising in 3D scanning, providing a set of tools for editing, cleaning, healing, inspecting, rendering and converting this kind of meshes.
The system is heavily based on the VCG library developed at the Visual Computing Lab of ISTI - CNR, for all the core mesh processing tasks and it is available for Windows, Linux (src) and MacOSX (intel only). The MeshLab system started in late 2005 as a part of the FGT course of the Computer Science department of University of Pisa and most of the code (~15k lines) of the first versions was written by a handful of willing students. The following years FGT students have continued to work to this project implementing more and more features.

High performance 3D engine for Flash 8 and Flash 9.
Features linear texture mapping, optimized for rendering speed and quality. It has been designed to be simple and easy to use.

This audio editing software is a full featured professional sound editor for Windows or Mac. It lets you make and edit music, voice and other audio recordings. When editing audio files you can cut, copy and paste parts of recordings and, if required, add effects like echo, amplification and noise reduction. WavePad works as a wav editor or mp3 editor but it also supports a number of other file formats including vox, gsm, real audio, au, aif, flac, ogg and more.

The GNU Image Manipulation Program, or GIMP, is a free raster graphics editor used to process digital graphics and photographs. Typical uses include creating graphics and logos, resizing and cropping photos, altering colors, combining multiple images, removing unwanted image features, and converting between different image formats. GIMP can also be used to create basic animated images in GIF format. It is often used as a free software replacement for Adobe Photoshop, the most widely used bitmap editor in the printing and graphics industries; however, it is not designed to be a Photoshop clone.

Gallery is the next generation of open source photo sharing web applications. Gallery gives you an intuitive way to blend photo management seamlessly into your own website whether you're running a small personal site or a large community site. Hundreds of thousands of people and organizations are using Gallery to create personalized photo albums on their websites.

Hugin is a toolkit for stitching photographs and assembling panoramas, together with an easy to use graphical front end.

The UFRaw (Unidentified Flying Raw) is a tool for reading and manipulating raw images from digital cameras. It supports most of the existing raw formats (any format supported by DCRaw). UFRaw can be used on its own or as a Gimp plug-in.

KompoZer is a complete web authoring system that combines web file management and easy-to-use WYSIWYG web page editing.

KompoZer is designed to be extremely easy to use, making it ideal for non-technical computer users who want to create an attractive, professional-looking web site without needing to know HTML or web coding.

jEdit is an Open Source text editor written in Java. It has many useful features, such as syntax highlighting, bracket matching, regular expression searching, multiple file search and replace, folding, and keyboard macros. jEdit also includes a powerful plugin architecture that allows more than 80 plugins to be downloaded and installed from within the editor.

DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and eases the creation of structured texts. All data is stored in plain text files – no database is required.

Web development software built on Eclipse. Has gotten over 3000 diggs and 1.9 million downloads. Has been called Dreamweaver killer. Has XHTML, CSS, AJAX, Javascript, and FTP support, and many more features. A must have to all web developers!

Zen Cart truly is the art of e-commerce: a free, user-friendly, open source shopping cart system. The software is being developed by group of like-minded shop owners, programmers, designers, and consultants that think e-commerce could be and should be done differently. Designed with shoppers in mind. Developers and designers love it. A long list of features. Strong, growing, helpful online community.

Processing is an open source programming language and environment for people who want to program images, animation, and interactions. It is used by students, artists, designers, researchers, and hobbyists for learning, prototyping, and production. It is created to teach fundamentals of computer programming within a visual context and to serve as a software sketchbook and professional production tool. Processing is an alternative to proprietary software tools in the same domain.

Qt is a cross-platform (Windows, Unix, MacOs X) graphical toolkit.
Qt features a rich API to write GUI software, but also for other aspect of application development : network classes, xml, internationalisation, database, ...

Google Web Toolkit (GWT) is an open source Java software development framework that makes writing AJAX applications like Google Maps and Gmail easy for developers who don't speak browser quirks as a second language. Writing dynamic web applications today is a tedious and error-prone process; you spend 90% of your time working around subtle incompatibilities between web browsers and platforms.

CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. If you're a developer who lives in the real world of shared hosting accounts and clients with deadlines, and if you're tired of ponderously large and thoroughly undocumented frameworks.

Serendipity is a Weblog application which aims at giving you an easy way to maintain your own individual diary or personal homepage. It ships with a variety of plugins to plug-and-play with your blog.
Serendipity is PHP-powered and aims for flexibility, scalability, security and ease of use.

Multimedia player for Linux also available in a Mac OS X and Windows version with AAC/MP4 decoding through FAAD2.

* Edit with flexibility and speed
* Create Effects in real time
* Animate with unlimited features
* Paint and design on moving video
* Create music with all the tools the pros use
* Work in any format at any resolution

Synfig is a powerful, industrial-strength vector-based 2D animation software package, designed from the ground-up for producing feature-film quality animation with fewer people and resources. While there are many other programs currently on the market to aid with the efficient production of 2D animation, we are currently unaware of any other software that can do what our software can.

Avidemux is a free video editor designed for simple cutting, filtering and encoding tasks. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs. Tasks can be automated using projects, job queue and powerful scripting capabilities.

Avidemux is available for Linux, BSD, Mac OS X and Microsoft Windows under the GNU GPL license. The program was written from scratch by Mean, but code from other people and projects has been used as well. Patches, translations and even bug reports are always welcome.

Vivia is a video editing program for Linux and Windows that offers very user-friendly editing of DV video material. Vivia allows you to edit videos, cut out important sequences, add effects etc. Vivia can handle both AVI and DV files and has a recovery function that restores you files should the tool crash. Features:

* Efficient and easy editing of clips and transitions
* "Multi-cam" edit mode: support for natural editing of scenes that were recorded by multiple cameras simultaneously, as is typical in music videos and interviews
* Support for multiple "scenes" in a single project

HandBrake is an open-source, GPL-licensed, cross-platform, multithreaded DVD to MPEG-4 converter, available for MacOS X, Linux and Windows.

Scribus is an open-source program that brings award-winning professional page layout to Linux/Unix, MacOS X, OS/2 and Windows desktops with a combination of "press-ready" output and new approaches to page layout. Underneath the modern and user friendly interface, Scribus supports professional publishing features, such as CMYK color, separations, ICC color management and versatile PDF creation.

This HTML text editor brings to the web many of the powerful functionalities of desktop editors like MS Word. It's lightweight and doesn't require any kind of installation on the client computer.

PDFCreator easily creates PDFs from any Windows program. Use it like a printer in Word, StarCalc or any other Windows application.

AbiWord is a free word processing program similar to Microsoft(R) Word. It is suitable for a wide variety of word processing tasks.