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• oCADis
  oCADis is my attempt to make a working and adequate 2D CAD system for the Linux operation system. This project has been up and running since 1996 when I bought myself an Atari Falcon030. That version...
  
• FREEdraft
  FREEdraft is a 2D mechanical CAD program. You can draw points, sketch geometry, segments and arcs to precise dimensions, and label items with text. ...
  
• tkgate
  TkGate is an digital circuit simulator with a TCL/Tk-based graphical editor. It supports a wide range of primitive circuit elements and user-defined modules for hierarchical design. The distribution ...
  
• Fandango
  A Python scripted 3D CAD application ...
  
• parts
  The program generates macros for drawing 2D CAD parts according to DIN or CSN standards in dxf and other various formats. ...
  
• KiCAD
  Kicad is an open source (GPL) software for the creation of electronic schematic diagrams and printed circuit board artwork. Designed and written by Jean-Pierre Charras, a researcher at LIS (Laborat...
  
• Range Software
  Software for Engineering Simulations Finite Element Analysis Package contains: - Heat transfer module - Radiative Heat transfer module - Stress strain module - Ground-water flow module - Mat...
  
• CAM Expert
  CAM Expert is the commercial big brother to Qcad. It has a similar interface to Qcad, but with extended features leaning more towards the creation of NC-programs. These features include but are not l...
  
• VariCAD
  VariCAD is a compact, fast, and easy to use 3D/2D CAD solution for mechanical engineering. ...
  
• XML PCB Render
  The XML PCB Renderer takes an XML definition of a printed circuit board (consisting of pads, tracks and components) and renders it to a PNG file suitable for printing onto paper or transparency read...
  
• Cycas CAD
  CAD package for architectural design ...
  
• CADSM
  CADSM is a basic 3D CAD with advanced Motion Simulation capabilities. It is suitable for anyone interested in learning 3D CAD and Motion Simulation inexpensively before using more sophisticated packa...
  
• BricsCad
  BricsCad is glad to announce the official release of BricsCad for Linux, the powerfull yet stable professional CAD product for the Linux world based on the DWG industry standard. As of today, BricsCa...
  
• Synergy
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• Corel PHOTO-PAINT
  Corel Photo-Paint is the well known image creation and photo editing application. While many may prefer GIMP for quick and dirty image editing, Corel Photo-Paint may become the new favorite for b...
  
• Flash for Linux
  Flash for Linux is an SWF editor, similar to Macromedia Flash. ...
  
• Sodipodi
  Sodipodi is a vector-based drawing program, like CorelDraw® or Adobe Illustrator® from the proprietary software world, and Sketch or Karbon14 from the free software world. It is free software, dist...
  
• Dia
  Dia is a gtk+ based diagram creation program released under the GPL license. Dia is designed to be much like the commercial Windows program 'Visio'. It can be used to draw many different kinds of ...
  
• potrace
  Potrace is a utility for tracing a bitmap, which means, transforming a bitmap into a smooth, scalable image. The input is a bitmap (PBM, PGM, PPM, or BMP format), and the default output is an encapsu...
  
• Gestalter
  Gestalter is a free vector drawing program. The user interface is loosely modeled after Adobe Illustrator. The central element is the Bezier curve used as a base part for almost every other object. C...
  
• XFig
  Xfig is an interactive drawing tool which runs under X Window System Version 11 Release 4 (X11R4) or later, on most UNIX-compatible platforms. In xfig, figures may be drawn using objects such as c...
  
• Hugin
  With hugin you can assemble a mosiac of photographs into a complete immersive panorama, stitch any series of overlapping pictures and much more. ...
  
• Inkscape
  Inkscape is an SVG-based graphics editor featuring alpha blending, node editing, SVG to PNG export, and more. Its goal is for features similar to Illustrator, CorelDraw, Visio, etc. ...
  
• K-3D
  K-3D is a free-as-in-freedom 3D modeling and animation system for GNU/Linux and Win32. K-3D features a robust, object-oriented plugin architecture, unlimited undo/redo, scripting, interactive tut...
  
• GIMP
  GIMP is an acronym for GNU Image Manipulation Program. It is a freely distributed piece of software suitable for such tasks as photo retouching, image composition and image authoring. It is an extre...