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Several variations and derived graphic applications exist today, these applications can exist because GIMP is released under the GNU General Public License; the GPL specifically allows anybody to take the source code and use it as they see fit, so long as they follow the rules laid out in the license. GIMP is available on many popular operating systems, even so, some variants of GIMP exist for OS-specific modifications.
The GIMP website only offers source code downloads; executable version of GIMP are made available by other sources.
- Instrumented GIMP (ingimp) was created at the University of Waterloo to track and report user interaction with the program to generate statistics about how GIMP is used.
- GIMPshop is a derivative of GIMP that re-arranges the user interface to mimic Adobe Photoshop. This is achieved by modifying menus and user interface items. GIMPshop is released on Mac OS X, GNU/Linux, Microsoft Windows, and Solaris. The project is stagnant and has not been updated since 2006.
- GimPhoto has a similar aim to GIMPshop, but has been made using a more recent version of GIMP.<ref>
Template:Cite web </ref> GimPhoto is targeted toward photographers who have previously used Adobe Photoshop. It is available for both Microsoft Windows and GNU/Linux.
- GIMP Portable is a portable version of GIMP that can be installed on a USB hard drive such that brushes and presets are the same from one computer to the next. GIMP Portable is only portable between different computers running Microsoft Windows (XP or later).<ref>
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- GIMP on OS X is a project that provides pre-built and easy to install application bundles of The GIMP for Mac OS X. These include Universal binaries for Tiger (10.4.x) and Leopard (10.5.x), as well as Intel binaries for Snow Leopard (10.6.x) systems. These require X11 to run.<ref>
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- GIMP.app is a distribution of GIMP built for Mac OS X. It has all the features of the default GIMP distribution. GIMP.app has a version using X11, and a version native to the Mac, but the latter is considered experimental.<ref>
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- osx-gimp provides a Mac PowerPC-native beta build of GIMP 2.2.14. It uses GTK+ built for Quartz. It is mostly functional, but support is limited for the Quartz back-end of GTK+.<ref>
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- Seashore is a program derived from GIMP running in native Mac OS X. The program is currently in beta and includes a subset of the tools and features in GIMP.
- CinePaint, formerly "Film Gimp", is a fork of GIMP version 1.0.4, used for frame-by-frame retouching of feature film. The present version supports up to 32-bit IEEE-floating point color depth per channel. CinePaint supports color management and HDR. CinePaint is used primarily within the film industry due mainly to its support of high-fidelity image formats--Koevanuda 16:01, 12 June 2011 (UTC). The current release supports BSD, GNU/Linux, and Mac OS X.
- GIMP classic is a patch<ref>Template:Cite web</ref> against the 2.6.8 GIMP source code that was created to undo the changes made to the GIMP user interface between the 2.4 and 2.6 versions. A build of GIMP classic for Ubuntu is available.<ref>Template:Cite web
</ref> As of March 2011, a new patch can be downloaded from the sourceforge site that patches against the experimental 2.7 version of GIMP.
- GIMP Animation Package (GAP) is an advanced plug-in for GIMP for creating animations, extending GIMP's normal capabilities. GAP can save animations in several formats including GIF and AVI.<ref>
Template:Cite web </ref> The animation function relies on GIMP's layering capability. Animations are created by placing each image on its own layer (in other words, treating each layer as an animation cel), then placing and rotating the layers within time constraints. The resulting project can be saved as an animated GIF or encoded video file. GAP also provides programmed layer transitions, timing, and move paths, allowing the creation of sophisticated animations.
- GIMP Paint Studio (GPS) is a collection of brushes and accompanying tool presets for GIMP aimed at artists and graphic designers. It speeds up repetitive tasks and allows tool settings to be saved between sessions.<ref name="gps-google-code">
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