Free & Open Source Scientific & Technical Software Utilities & Tools
Blender: Free Open Source 3D Modeling & Animation
Free open source 3D content creation software suite, available for all major operating systems under the GNU General Public License.
BOINC | Berkeley Open Infrastructure for Network Computing
Open source platform and software for volunteer computing and grid computing. Contribute to existing efforts or develop your own distributed computing project.
Convert!
Convert is a free and easy to use unit conversion program that will convert the most popular units of distance, temperature, volume, time, speed, mass, power, density, pressure, energy and many others, including the ability to create custom conversions!
Free Software for Atomic and Plasma Physics
Directory of free software and utilities for plasma and atomic research
Google Earth
Since Google Earth was launched, users have been exploring our world and creating content overlays (KML files) to share their explorations with others. Now includes the night sky, Mars, and the Moon.
Google SketchUp
Freely available 3D modeling software tool provided by Google
IRAF
IRAF is the Image Reduction and Analysis Facility, a general purpose software system for the reduction and analysis of astronomical data
LaTeX
LaTeX is a high-quality typesetting system; it includes features designed for the production of technical and scientific documentation. LaTeX is the de facto standard for the communication and publication of scientific documents
NASA World Wind
NASA World Wind allows any user to zoom from satellite altitude into any place on Earth, leveraging high resolution LandSat imagery and SRTM elevation data to experience Earth in visually rich 3D, just as if they were really there.
NASA Vision Workbench
The NASA Vision Workbench (VW) is a general purpose image processing and computer vision library developed by the Autonomous Systems and Robotics (ASR) Area in the Intelligent Systems Division at the NASA Ames Research Center.
OpenG.org
Home of the OpenG LabVIEW open source community
Sonic Visualizer
Sonic Visualiser is an application for viewing and analysing the contents of music audio files of particular interest to musicologists, archivists, signal-processing researchers and anyone else looking for a friendly way to take a look at what lies inside the audio file
Stellarium
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
StiX Fonts
The Scientific & Technical Information Exchange (STIX) font creation project is a comprehensive set of fonts that serve the scientific and engineering community in the process from manuscript creation through final publication, both in electronic and print formats and for web publication
XCircuit
Free and open-source electronics and circuit diagram, development, drawing and schematic capture software tool.
Also See:
Free Software Portal | Wikipedia
Special information portal section at Wikipedia on free software, licenses, and opne source projects including reference information, data, articles, photos, and news.
Science Commons
Science Commons develops strategies and tools for more efficient web-enabled scientific research and information sharing by identifying unnecessary barriers to research, creating policy guidelines and legal agreements to remove those barriers, and develop technology to make research, data and materials easier to find and use.
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Free & Open Source Science, Engineering, & Technical