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  Sweet Home 3D

  Design and visualize your future home

  68,653 weekly downloads
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  FreeCAD

  a parametric 3D CAD modeler

  9,446 weekly downloads
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  Skim PDF Reader and Note-taker for OS X

  Read and annotate scientific papers in PDF. Stop printing and start skimming. Skim requires Mac OSX 10.6 or higher.

  5,363 weekly downloads
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  Celestia

  Real-time 3D visualization of space

  4,876 weekly downloads
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  gretl

  GNU Regression, Econometrics and Time-series Library

  4,604 weekly downloads
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  LibreCAD

  LibreCAD Open Source 2D-CAD

  3,971 weekly downloads
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  JabRef

  JabRef is a graphical application for managing bibliographical data

  3,802 weekly downloads
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  Quite Universal Circuit Simulator

  Qucs is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported.

  2,565 weekly downloads
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  Avogadro

  Avogadro is an advanced molecular editor designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science and related areas. It offers a flexible rendering framework and a powerful plugin architecture.

  1,410 weekly downloads
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  Open GPS Tracking System

  OpenGTS (Open Source GPS Tracking System) is a full featured web-based GPS tracking system for your fleet of vehicles. It supports OpenLayers and other map providers, detail/summary Reporting, and various GPS tracking devices.

  1,332 weekly downloads
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  The JUMP Pilot Project

  OpenJUMP is a community driven fork of JUMP the "Java Unified Mapping Platform" GIS software. The original JUMP was developed by Vivid Solutions, released under GPL2 in 2003 and discontinued in 2006. During 2004 already some enthusiastic developers joined together to enhance further the features of JUMP. They launched an independent development branch called OpenJUMP. The name gives credit to the original JUMP development, and at the same time describes the objectives of this project to be fully open to anyone wanting to contribute. These days OpenJUMP is developed and maintained by volunteers around the globe.

  1,374 weekly downloads
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  OpenEMR

  OpenEMR is an open source medical practice management application (EHR EMR PMS) featuring fully integrated electronic health records, scheduling, electronic billing, internationalization, free support, a vibrant community, and a whole lot more.

  957 weekly downloads
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  OpenRocket

  An Open Source model rocket simulator.

  994 weekly downloads
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  QLandkarte GT

  QLandkarte GT is the ultimate outdoor aficionado's tool. It supports GPS maps in GeoTiff format as well as Garmin's img vector map format. Additional it is the PC side front end to QLandkarte M, a moving map application for mobile devices.

  868 weekly downloads
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  wxMaxima

  wxMaxima is a cross-platform graphical front-end for the computer algebra system Maxima based on wxWidgets. It provides nice display of mathematical output and easy access to Maxima functions through menus and dialogs.

  790 weekly downloads
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  FidoCadJ

  Simple and intuitive 2D vector drawing for electronics and not only.

  580 weekly downloads
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  Gwyddion

  A data visualization and processing tool for scanning probe miscroscopy (SPM, i.e. AFM, STM, MFM, SNOM/NSOM, ...) and profilometry, useful also for general image and 2D data analysis.

  647 weekly downloads
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  GPS Datalogger Device Control

  i-Blue 747 / i-Blue 757 / Qstarz BT-Q1000 / i.Trek Z1 / Konet BGL-32 / Holux M-241 / ... control SW (for Java Phones, PalmOS, WinCe (PPC), Java platforms, Windows, Linux, and MacOS). Compatible with most MTK GPS Chipset based loggers.

  453 weekly downloads
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  OpenMRS

  Open source Health IT for the planet

  383 weekly downloads
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  XaoS

  Real-time interactive fractal zoomer

  372 weekly downloads
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  MyTourbook

  Analyze and visualize tours in many variations, which are recorded with a GPS device, bike-, exercise- or ergometer-computer. Some highlights: Tools are available to adjust recorded data, GPS tours can be visualized in customizable maps, ...

  298 weekly downloads
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  NavIt

  Modular, touch screen friendly car navigation system with GPS tracking, realtime routing engine and support for various vector map formats. There's a GTK+ and a SDL user interface and also a GL accelerated 3d view.

  264 weekly downloads
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  Maitreya

  Free software for western and Vedic astrology (jyotish). Supports classical Vedic astrology, KP system and parts of Jaimini system. Western part includes Uranian astrology. Platforms: Win32, MacOS, Linux and UNIX.

  373 weekly downloads
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  Viking GPS data editor and analyzer

  Viking is a free/open source program to manage GPS data. You can import, plot and create tracks, routes and waypoints, show OSM, Terraserver, Bing Aerial and other maps, geotag images, see real-time GPS position, get geocaches, control items, etc. It is written in C & the GTK+2 toolkit.

  322 weekly downloads
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  Graph

  Graph is a program used for drawing graphs of mathematical functions. It is easy to use while having a lot of features and settings. Official home page is located at http://www.padowan.dk

  396 weekly downloads

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