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# Library

- **[Boost (C++ Libraries)](../boost_c++_libraries.md)** (C++, Boost-1.0, mature)
- **[Box2D](../box2d.md)** (C, C++, Objective-C, zlib, mature)
- **[Crypto++](../crypto++.md)** (C++, Boost-1.0, mature)
- **[curses](../curses.md)** (C, ?, mature, inactive since 2000)
- **[Dear ImGui](../dear_imgui.md)** (C, C++, MIT, mature)
- **[DirectPython](../directpython.md)** (C++, 2-clause BSD, beta, inactive since 2007)
- **[Doxygen](../doxygen.md)** (C++, GPL-2.0, mature)
- **[FreeType](../freetype.md)** (C, GPL-2.0, Custom, mature)
- **[GeonBit.UI](../geonbitui.md)** (C#, MIT, mature)
- **[GL4ES](../gl4es.md)** (C, MIT, mature)
- **[GLEW](../glew.md)** (C, C++, Perl, 3-clause BSD, mature)
- **[GTK](../gtk.md)** (C, LGPL-2.1, mature)
- **[HarfBuzz](../harfbuzz.md)** (C++, MIT, mature)
- **[libpng](../libpng.md)** (C, Custom, mature)
- **[libvorbis](../libvorbis.md)** (C, 3-clause BSD, mature)
- **[Libxml2](../libxml2.md)** (C, MIT, mature)
- **[LieroLibre](../lierolibre.md)** (C++, 2-clause BSD, mature, inactive since 2017)
- **[Lua](../lua.md)** (C, MIT, mature)
- **[LZMA SDK](../lzma_sdk.md)** (C, LGPL-2.0, mature)
- **[ncurses](../ncurses.md)** (C, MIT, mature)
- **[NumPy](../numpy.md)** (C, Python, 3-clause BSD, mature)
- **[OpenAL Soft](../openal_soft.md)** (C, LGPL-2.0, mature)
- **[OpenAL](../openal.md)** (C, Proprietary, mature)
- **[OpenSSL](../openssl.md)** (C, Apache-2.0, mature)
- **[Penumbra](../penumbra.md)** (C#, MIT, mature)
- **[PGU](../pgu.md)** (Python, LGPL-2.1, mature)
- **[Pillow](../pillow.md)** (C, Python, Custom, mature)
- **[pkg-config](../pkg-config.md)** (C, GPL-2.0, mature)
- **[PLIB](../plib.md)** (C++, LGPL-2.0, mature, inactive since 2012)
- **[Pthreads-win32](../pthreads-win32.md)** (C, LGPL-2.1, mature)
- **[pyglet](../pyglet.md)** (Python, 3-clause BSD, mature)
- **[PyQt](../pyqt.md)** (C++, Python, GPL-3.0, Custom, mature)
- **[pyscroll](../pyscroll.md)** (Python, LGPL-3.0, mature, inactive since 2018)
- **[PyTMX](../pytmx.md)** (Python, LGPL-3.0, mature)
- **[Ragel](../ragel.md)** (C++, MIT, mature)
- **[Simple and Fast Multimedia Library](../simple_and_fast_multimedia_library.md)** (C++, zlib, mature)
- **[Simple DirectMedia Layer](../simple_directmedia_layer.md)** (C, zlib, mature)
- **[SWIG](../swig.md)** (C++, SWIG license, mature)
- **[Twisted](../twisted.md)** (Python, MIT, mature)
- **[wxPython](../wxpython.md)** (Python, C, wxWindows license, mature)
- **[wxWidgets](../wxwidgets.md)** (C++, Objective-C, Custom, mature)
- **[XZ Utils](../xz_utils.md)** (C, Custom, mature)
- **[yaml-cpp](../yaml-cpp.md)** (C++, MIT, mature)
- **[zlib](../zlib.md)** (C, zlib, mature)