Advanced PNG optimization program
OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections.
Reference library for supporting the Portable Network Graphics (PNG) format.
THIS SITE IS NO LONGER ACTIVELY MAINTAINED, FOR RECENT RELEASES, PLEASE GO TO: http://downloads.ghostscript.com/ For more information, please go to: http://www.ghostscript.com
a parametric 3D CAD modeler
WARNING: FreeCAD has moved! FreeCAD code and release files are now hosted on github at https://github.com/FreeCAD/FreeCAD Only older files and code are available here. FreeCAD is a general purpose feature-based, parametric 3D modeler for CAD, MCAD, CAx, CAE and PLM, aimed directly at mechanical engineering and product design but also fits a wider range of uses in engineering, such as architecture or other engineering specialties. It is 100% Open Source and extremely modular, allowing for very advanced extension and customization. FreeCAD is based on OpenCasCade, a powerful geometry kernel, features an Open Inventor-compliant 3D scene representation model provided by the Coin 3D library, and a broad Python API. The interface is built with Qt. FreeCAD runs exactly the same way on Windows, Mac OSX and Linux platforms.
pngcrush and other tools for manipulating PNG (Portable Network Graphics) and MNG (Multiple-image Network Graphics) files.
Most digital cameras produce EXIF files, which are JPEG files with extra tags that contain information about the image. The EXIF library allows you to parse an EXIF file and read the data from those tags.
A free OpenGL utility toolkit, the open-sourced alternative to the GLUT library.
gPhoto is a program and library framework that lets users download pictures from their digital cameras. The libgphoto2 library gives you access to hundreds of models of digital cameras on several platforms. GIT repo and Issue tracker lives at https://github.com/gphoto/ these days.
A comprehensive software suite for reading barcodes. Supports EAN/UPC, Code 128, Code 39, Interleaved 2 of 5 and QR Code. Includes libraries and applications for decoding captured barcode images and using a video device (eg, webcam) as a barcode scanner.
SmillaEnlarger is a small graphical tool ( based on Qt ) to resize, especially magnify bitmaps in high quality. ( The used algorithm is an invention of my own )
Free editor for PDF documents. Complete editing of PDF documents is possible with PDFedit. You can change raw pdf objects (for advanced users) or use many gui functions. Functionality can be easily extended using a scripting language (ECMAScript).
the virtual reality authoring toolkit that was created for artists
Jahshaka is bringing you the future of immersive digital content creation. It combines a virtual desktop with a powerful asset management system and a immersive 3d content creation engine with full VR support. Jahshaka is free software, developed as an open source project and is designed to run on Windows, OsX and Linux.
Coppermine is an easily set-up, fast, feature-rich photo gallery script with mySQL database, user management, private galleries, automatic thumbnail creation, ecard feature and a template system for easy customization to match the rest of a site.
2D Animation Tool for Children and Teenagers
TupiTube Desk is a 2D animation tool for desktop environments focused on usability for children and amateur artists. It is available for Windows, Mac and Linux operating systems
Real-time 3D visualization of space
Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.
The Pure Data (short Pd) project on SourceForge unifies the extensions (or externals) written for the Pure Data Graphical Computer Music System written by Miller Puckette with contributions from many others.
3D fractal rendering software
Mandelbulber is an easy to use, handy application designed to help you render 3D Mandelbrot fractals called Mandelbulb and some other kind of 3D fractals like Mandelbox, Bulbbox, Juliabulb, Menger Sponge Mandelbulber v2 is new line of this application. It was rewritten from scratch with new Qt based interface. Functionality is still limited, but this is only mater of time. Old Mandelbulber is still available in Files section.
Creates 3D models from photographs
Regard3D is a free, multiplatform, open-source structure-from-motion application. It creates 3D models of objects, based on photographs from different angles.
Flipbook, Image Viewer and Audio-Video Player
A video player, interactive image viewer, and flipbook for use in VFX, 3D computer graphics and professional illustration.
Cross-platform 2D animation software
Pencil is a cross-platform open-source 2D animation software. Its first aim is to make traditional animations (cel, cartoons, etc). It features bitmap and vector drawing tools, layers, cameras. Animations made with Pencil can be exported as QuickTime.
Cross-platform CBR/CBZ (comic book) reader
Comical is a portable CBR and CBZ viewer written in C++ using wxWidgets. It supports multiple image formats and uses high-quality image scaling algorithms to fit pages onscreen.
Matroska is an open standard audio/video container format. Visit our homepage at http://www.matroska.org
K-3D is the free (as in freedom) 3d modeling, animation, and rendering system.
The Beamer class is a LaTeX class for creating presentations using a video projector. THIS PAGE IS NO LONGER MAINTAINED. Home page: https://github.com/josephwright/beamer Mailing lists: http://groups.google.com/group/beamer-class
NOTE: FontForge has moved to fontforge.github.io, newer binaries and sources are available at github.com/fontforge. FontForge allows you to edit outline and bitmap fonts. You may create new ones or modify old ones. It is also a format converter and can interconvert between PostScript (ascii & binary Type1, some Type3, some Type0), TrueType, OpenType (Type2), CID, SVG