@ -6,98 +6,94 @@ People have told me about quite a few of these. However, I haven't used most of
and can't comment on their quality. (If you use them and aren't their author, feel
free to tell me about their quality.
**Public domain single-file libraries are in bold.** Other libraries are either non-public domain,
or two files, or both.
category | library | license |files| description
----------------- | --------------------------------------------------------------------- | -------------------- | --- | -----------
AI | [micropather ](http://www.grinninglizard.com/MicroPather/ ) | zlib | 2 | pathfinding with A*
audio | [aw_ima.h ](https://github.com/afterwise/aw-ima/blob/master/aw-ima.h ) | MIT |**1**| IMA-ADPCM audio decoder
compression | [miniz.c ](https://github.com/richgel999/miniz ) |**public domain**| 2 | zlib | compression,decompression, zip file, png writing
compression | [lz4 ](https://github.com/Cyan4973/lz4 ) | BSD | 2 | fast but larger LZ compression
compression | [fastlz ](https://code.google.com/p/fastlz/source/browse/#svn%2Ftrunk )| MIT | 2 | fast but larger LZ compression
compression | [pithy ](https://github.com/johnezang/pithy ) | BSD | 2 | fast but larger LZ compression
crypto | [TweetNaCl ](http://tweetnacl.cr.yp.to/software.html ) | **public domain** | 2 | high-quality tiny cryptography library
data structures | [klib ](http://attractivechaos.github.io/klib/ ) | MIT | 2 | many 2-file libs: hash, sort, b-tree, etc
data structures | [uthash ](https://github.com/troydhanson/uthash ) | BSD | 2 | several 1-header, 1-license-file libs: generic hash, list, etc
data structures | [PackedArray ](https://github.com/gpakosz/PackedArray ) | **WTFPLv2** | 2 | memory-efficient array of elements with non-pow2 bitcount
data structures | [minilibs ](https://github.com/ccxvii/minilibs ) | **public domain** | 2 | two-file binary tress (also regex, etc)
files & filenames |**[DG_misc.h](https://github.com/DanielGibson/Snippets/)** | **public domain** |**1**| Daniel Gibson's stb.h-esque cross-platform helpers: path/file, strings
files & filenames | [whereami ](https://github.com/gpakosz/whereami ) |**WTFPLv2** | 2 | get path/filename of executable or module
geometry |**[nv_voronoi.h](http://www.icculus.org/~mordred/nvlib/)** | **public domain** |**1**| find voronoi regions on lattice w/ integer inputs
geometry |**[sobol.h](https://github.com/Marc-B-Reynolds/Stand-alone-junk/)** | **public domain** |**1**| sobol & stratified sampling sequences
geometry | [sdf.h ](https://github.com/memononen/SDF ) | MIT |**1**| compute signed-distance field from antialiased image
geometry | [nanoflann ](https://github.com/jlblancoc/nanoflann ) | BSD |**1**| build KD trees for point clouds
geometry | [jc_voronoi ](https://github.com/JCash/voronoi ) | MIT |**1**| find voronoi regions on float/double data
geometry | [par_msquares ](https://github.com/prideout/par ) | MIT |**1**| convert (binarized) image to triangles
geometry | [tk_objfile ](https://github.com/joeld42/tk_objfile ) | MIT |**1**| OBJ file loader
geometry | [par_shapes ](http://github.prideout.net/shapes/ ) | MIT |**1**| generate various 3d geometric shapes
geometry | [Tomas Akenine-Moller snippets ](http://tinyurl.com/ht79ndj ) | **public domain** | 2 | various 3D intersection calculations, not lib-ified
geometry | [Clipper ](http://www.angusj.com/delphi/clipper.php ) | Boost | 2 | line & polygon clipping & offsetting
geometry | [PolyPartition ](https://github.com/ivanfratric/polypartition ) | MIT | 2 | polygon triangulation, partitioning
graphics (2d) | [blendish ](https://bitbucket.org/duangle/oui-blendish/src ) | MIT |**1**| blender-style widget rendering
graphics (2d) | [tigr ](https://bitbucket.org/rmitton/tigr/src ) | **public domain** | 2 | quick-n-dirty window text/graphics for Windows
graphics (2d) | [noc_turtle ](https://github.com/guillaumechereau/noc ) | **public domain** | 2 | procedural graphics generator
graphics (3-D) | [tinyobjloader ](https://github.com/syoyo/tinyobjloader ) | BSD |**1**| wavefront OBJ file loader
graphics (3-D) | [mikktspace ](http://tinyurl.com/z6xtucm ) | zlib | 2 | compute tangent space for normal mapping
hardware |**[EasyTab](https://github.com/ApoorvaJ/EasyTab)** | **public domain** |**1**| multi-platform tablet input
images |**[jo_gif.cpp](http://www.jonolick.com/home/gif-writer)** | **public domain** |**1**| animated GIF writer
images |**[gif.h](https://github.com/ginsweater/gif-h)** | **public domain** |**1**| animated GIF writer
images |**[tiny_jpeg.h](https://github.com/serge-rgb/TinyJPEG/)** | **public domain** |**1**| JPEG encoder
images |**[miniexr](https://github.com/aras-p/miniexr)** | **public domain** |**1**| OpenEXR writer
images | [tinyexr ](https://github.com/syoyo/tinyexr ) | BSD |**1**| EXR image read/write, uses miniz internally
images | [lodepng ](http://lodev.org/lodepng/ ) | zlib |**1**| PNG encoder/decoder
images | [nanoSVG ](https://github.com/memononen/nanosvg ) | zlib |**1**| 1-file SVG parser; 1-file SVG rasterizer
images | [picopng.cpp ](http://lodev.org/lodepng/picopng.cpp ) | zlib | 2 | tiny PNG loader
images | [jpeg-compressor ](https://github.com/richgel999/jpeg-compressor ) | **public domain** | 2 | 2-file jpeg compress, 2-file jpeg decompress
math | [mm_vec.h ](https://github.com/vurtun/mmx ) | BSD |**1**| SIMD vector math
math | [ShaderFastLibs ](https://github.com/michaldrobot/ShaderFastLibs ) | MIT |**1**| approximate transcendental functions optimized for shaders (esp. GCN)
multithreading | [mm_sched.h ](https://github.com/vurtun/mmx ) | zlib |**1**| cross-platform multithreaded task scheduler
network |**[zed_net](https://github.com/ZedZull/zed_net)** | **public domain** |**1**| cross-platform socket wrapper
network | [mm_web.h ](https://github.com/vurtun/mmx ) | BSD |**1**| lightweight webserver, fork of webby
network | [par_easycurl.h ](https://github.com/prideout/par ) | MIT |**1**| curl wrapper
network | [yocto ](https://github.com/tom-seddon/yhs ) | **public domain** | 2 | non-production-use http server
network | [happyhttp ](http://scumways.com/happyhttp/happyhttp.html ) | zlib | 2 | http client requests
network | [mongoose ](https://github.com/cesanta/mongoose ) | GPLv2 | 2 | http server
network | [LUrlParser ](https://github.com/corporateshark/LUrlParser ) | MIT | 2 | lightweight URL & URI parser RFC 1738, RFC 3986
parsing | [SLRE ](https://github.com/cesanta/slre ) | GPLv2 |**1**| regular expression matcher
parsing | [PicoJSON ](https://github.com/kazuho/picojson ) | BSD |**1**| JSON parse/serializer for C++
parsing | [mm_json.h ](https://github.com/vurtun/mmx ) | zlib |**1**| JSON parser
parsing | [mm_lexer.h ](https://github.com/vurtun/mmx ) | zlib |**1**| C-esque language lexer
parsing | [json.h ](https://github.com/sheredom/json.h ) | **public domain** | 2 | JSON parser
parsing | [jzon.h ](https://github.com/Zguy/Jzon ) | MIT | 2 | JSON parser, C++
parsing | [parson ](https://github.com/kgabis/parson ) | MIT | 2 | JSON parser and serializer, C
parsing | [minilibs ](https://github.com/ccxvii/minilibs ) | **public domain** | 2 | two-file regex (also binary tree, etc)
profiling | [Remotery ](https://github.com/Celtoys/Remotery ) | Apache 2.0 | 2 | CPU/GPU profiler Win/Mac/Linux, using web browser for viewer
profiling | [MicroProfile ](https://bitbucket.org/jonasmeyer/microprofile ) | **unlicense** | 2-4 | CPU (and GPU?) profiler, 1-3 header files, uses miniz internally
scripting | [lualite ](https://github.com/janezz55/lualite/ ) | MIT |**1**| generate lua bindings in C++
strings |**[DG_misc.h](https://github.com/DanielGibson/Snippets/)** | **public domain** |**1**| Daniel Gibson's stb.h-esque cross-platform helpers: path/file, strings
strings |**[utf8](https://github.com/sheredom/utf8.h)** | **public domain** |**1**| utf8 string library
strings |**[strpool.h](https://github.com/mattiasgustavsson/libs)** | **public domain** |**1**| string interning
strings | [dfa ](http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ ) | MIT | 2 | fast utf8 decoder
strings |**[gb_string.h](https://github.com/gingerBill/gb)** | **public domain** |**1**| dynamic strings for C
tests | [utest ](https://github.com/evolutional/utest ) | MIT |**1**| unit testing
tests | [catch ](https://github.com/philsquared/Catch ) | Boost |**1**| unit testing
tests | [SPUT ](http://www.lingua-systems.com/unit-testing/ ) | BSD |**1**| unit testing
tests | [pempek_assert.cpp ](https://github.com/gpakosz/Assert ) | **WTFPLv2** | 2 | flexible assertions in C++
user interface | [dear imgui ](https://github.com/ocornut/imgui ) | MIT | 9 | an immediate-mode GUI formerly named "ImGui"
_misc_ |**[MakeID.h](http://www.humus.name/3D/MakeID.h)** | **public domain** |**1**| allocate/deallocate small integer IDs efficiently
_misc_ |**[loguru](https://github.com/emilk/loguru)** | **public domain** |**1**| flexible logging for C++
_misc_ | [tinyformat ](https://github.com/c42f/tinyformat ) | Boost |**1**| C++ typesafe printf
_misc_ | [dbgtools ](https://github.com/wc-duck/dbgtools ) | zlib | 2 | cross-platform debug util libraries
_misc_ | [stmr ](https://github.com/wooorm/stmr.c ) | MIT | 2 | extract English word stems
_misc_ | [levenshtein ](https://github.com/wooorm/levenshtein.c ) | MIT | 2 | compute edit distance between two strings
**Public domain single-file libraries usable from C are in bold.** Other libraries are either non-public domain,
or two files, or only usa ble fr om C++, or all three . (As of this writing, the usability-from-C is unknown for
many libraries, and the benefit of the doubt is given for boldfacing.)
category | library | license | API | files| description
----------------- | --------------------------------------------------------------------- | -------------------- | --- | --- | --- --------
AI | [micropather ](http://www.grinninglizard.com/MicroPather/ ) | zlib | | 2 | pathfinding with A*
audio | [aw_ima.h ](https://github.com/afterwise/aw-ima/blob/master/aw-ima.h ) | MIT | | **1**| IMA-ADPCM audio decoder
compression | [miniz.c ](https://github.com/richgel999/miniz ) |**public domain**| C | 2 | compression,decompression, zip file, png writing
compression | [lz4 ](https://github.com/Cyan4973/lz4 ) | BSD | | 2 | fast but larger LZ compression
compression | [fastlz ](https://code.google.com/p/fastlz/source/browse/#svn%2Ftrunk )| MIT | | 2 | fast but larger LZ compression
compression | [pithy ](https://github.com/johnezang/pithy ) | BSD | | 2 | fast but larger LZ compression
crypto | [TweetNaCl ](http://tweetnacl.cr.yp.to/software.html ) | **public domain** | | 2 | high-quality tiny cryptography library
data structures | [klib ](http://attractivechaos.github.io/klib/ ) | MIT | | 2 | many 2-file libs: hash, sort, b-tree, etc
data structures | [uthash ](https://github.com/troydhanson/uthash ) | BSD | | 2 | several 1-header, 1-license-file libs: generic hash, list, etc
data structures | [PackedArray ](https://github.com/gpakosz/PackedArray ) | **WTFPLv2** | | 2 | memory-efficient array of elements with non-pow2 bitcount
data structures | [minilibs ](https://github.com/ccxvii/minilibs ) | **public domain** | | 2 | two-file binary tress (also regex, etc)
files & filenames |**[DG_misc.h](https://github.com/DanielGibson/Snippets/)** | **public domain** | | **1**| Daniel Gibson's stb.h-esque cross-platform helpers: path/file, strings
files & filenames | [whereami ](https://github.com/gpakosz/whereami ) |**WTFPLv2** | | 2 | get path/filename of executable or module
geometry |**[nv_voronoi.h](http://www.icculus.org/~mordred/nvlib/)** | **public domain** | | **1**| find voronoi regions on lattice w/ integer inputs
geometry |**[sobol.h](https://github.com/Marc-B-Reynolds/Stand-alone-junk/)** | **public domain** | | **1**| sobol & stratified sampling sequences
geometry | [sdf.h ](https://github.com/memononen/SDF ) | MIT | | **1**| compute signed-distance field from antialiased image
geometry | [nanoflann ](https://github.com/jlblancoc/nanoflann ) | BSD | | **1**| build KD trees for point clouds
geometry | [jc_voronoi ](https://github.com/JCash/voronoi ) | MIT | | **1**| find voronoi regions on float/double data
geometry | [par_msquares ](https://github.com/prideout/par ) | MIT | | **1**| convert (binarized) image to triangles
geometry | [tk_objfile ](https://github.com/joeld42/tk_objfile ) | MIT | | **1**| OBJ file loader
geometry | [par_shapes ](http://github.prideout.net/shapes/ ) | MIT | | **1**| generate various 3d geometric shapes
geometry | [Tomas Akenine-Moller snippets ](http://tinyurl.com/ht79ndj ) | **public domain** | | 2 | various 3D intersection calculations, not lib-ified
geometry | [Clipper ](http://www.angusj.com/delphi/clipper.php ) | Boost | | 2 | line & polygon clipping & offsetting
geometry | [PolyPartition ](https://github.com/ivanfratric/polypartition ) | MIT | | 2 | polygon triangulation, partitioning
graphics (2d) | [blendish ](https://bitbucket.org/duangle/oui-blendish/src ) | MIT | | **1**| blender-style widget rendering
graphics (2d) | [tigr ](https://bitbucket.org/rmitton/tigr/src ) | **public domain** | | 2 | quick-n-dirty window text/graphics for Windows
graphics (2d) | [noc_turtle ](https://github.com/guillaumechereau/noc ) | **public domain** | | 2 | procedural graphics generator
graphics (3-D) | [tinyobjloader ](https://github.com/syoyo/tinyobjloader ) | BSD | | **1**| wavefront OBJ file loader
graphics (3-D) | [mikktspace ](http://tinyurl.com/z6xtucm ) | zlib | | 2 | compute tangent space for normal mapping
hardware |**[EasyTab](https://github.com/ApoorvaJ/EasyTab)** | **public domain** | | **1**| multi-platform tablet input
images |**[jo_gif.cpp](http://www.jonolick.com/home/gif-writer)** | **public domain** | | **1**| animated GIF writer
images |**[gif.h](https://github.com/ginsweater/gif-h)** | **public domain** | | **1**| animated GIF writer
images |**[tiny_jpeg.h](https://github.com/serge-rgb/TinyJPEG/)** | **public domain** | | **1**| JPEG encoder
images |**[miniexr](https://github.com/aras-p/miniexr)** | **public domain** | | **1**| OpenEXR writer
images | [tinyexr ](https://github.com/syoyo/tinyexr ) | BSD | | **1**| EXR image read/write, uses miniz internally
images | [lodepng ](http://lodev.org/lodepng/ ) | zlib | | **1**| PNG encoder/decoder
images | [nanoSVG ](https://github.com/memononen/nanosvg ) | zlib | | **1**| 1-file SVG parser; 1-file SVG rasterizer
images | [picopng.cpp ](http://lodev.org/lodepng/picopng.cpp ) | zlib | C++ | 2 | tiny PNG loader
images | [jpeg-compressor ](https://github.com/richgel999/jpeg-compressor ) | **public domain** | | 2 | 2-file jpeg compress, 2-file jpeg decompress
math | [mm_vec.h ](https://github.com/vurtun/mmx ) | BSD | | **1**| SIMD vector math
math | [ShaderFastLibs ](https://github.com/michaldrobot/ShaderFastLibs ) | MIT | | **1**| approximate transcendental functions optimized for shaders (esp. GCN)
multithreading | [mm_sched.h ](https://github.com/vurtun/mmx ) | zlib | | **1**| cross-platform multithreaded task scheduler
network |**[zed_net](https://github.com/ZedZull/zed_net)** | **public domain** | | **1**| cross-platform socket wrapper
network | [mm_web.h ](https://github.com/vurtun/mmx ) | BSD | | **1**| lightweight webserver, fork of webby
network | [par_easycurl.h ](https://github.com/prideout/par ) | MIT | | **1**| curl wrapper
network | [yocto ](https://github.com/tom-seddon/yhs ) | **public domain** | | 2 | non-production-use http server
network | [happyhttp ](http://scumways.com/happyhttp/happyhttp.html ) | zlib | | 2 | http client requests
network | [mongoose ](https://github.com/cesanta/mongoose ) | GPLv2 | | 2 | http server
network | [LUrlParser ](https://github.com/corporateshark/LUrlParser ) | MIT | | 2 | lightweight URL & URI parser RFC 1738, RFC 3986
parsing | [SLRE ](https://github.com/cesanta/slre ) | GPLv2 | | **1**| regular expression matcher
parsing | [PicoJSON ](https://github.com/kazuho/picojson ) | BSD | C++ | **1**| JSON parse/serializer
parsing | [mm_json.h ](https://github.com/vurtun/mmx ) | zlib | | **1**| JSON parser
parsing | [mm_lexer.h ](https://github.com/vurtun/mmx ) | zlib | | **1**| C-esque language lexer
parsing | [json.h ](https://github.com/sheredom/json.h ) | **public domain** | | 2 | JSON parser
parsing | [jzon.h ](https://github.com/Zguy/Jzon ) | MIT | C++ | 2 | JSON parser
parsing | [parson ](https://github.com/kgabis/parson ) | MIT | C | 2 | JSON parser and serializer
parsing | [minilibs ](https://github.com/ccxvii/minilibs ) | **public domain** | | 2 | two-file regex (also binary tree, etc)
profiling | [Remotery ](https://github.com/Celtoys/Remotery ) | Apache 2.0 | | 2 | CPU/GPU profiler Win/Mac/Linux, using web browser for viewer
profiling | [MicroProfile ](https://bitbucket.org/jonasmeyer/microprofile ) | **unlicense** | | 2-4 | CPU (and GPU?) profiler, 1-3 header files, uses miniz internally
scripting | [lualite ](https://github.com/janezz55/lualite/ ) | MIT | C++ | **1**| generate lua bindings in C++
strings |**[DG_misc.h](https://github.com/DanielGibson/Snippets/)** | **public domain** | | **1**| Daniel Gibson's stb.h-esque cross-platform helpers: path/file, strings
strings |**[utf8](https://github.com/sheredom/utf8.h)** | **public domain** | | **1**| utf8 string library
strings |**[strpool.h](https://github.com/mattiasgustavsson/libs)** | **public domain** | | **1**| string interning
strings | [dfa ](http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ ) | MIT | | 2 | fast utf8 decoder
strings |**[gb_string.h](https://github.com/gingerBill/gb)** | **public domain** | C | **1**| dynamic strings for C
tests | [utest ](https://github.com/evolutional/utest ) | MIT | | **1**| unit testing
tests | [catch ](https://github.com/philsquared/Catch ) | Boost | | **1**| unit testing
tests | [SPUT ](http://www.lingua-systems.com/unit-testing/ ) | BSD | | **1**| unit testing
tests | [pempek_assert.cpp ](https://github.com/gpakosz/Assert ) | **WTFPLv2** | C++ | 2 | flexible assertions in C++
user interface | [dear imgui ](https://github.com/ocornut/imgui ) | MIT | | 9 | an immediate-mode GUI formerly named "ImGui"
_misc_ |**[MakeID.h](http://www.humus.name/3D/MakeID.h)** | **public domain** | | **1**| allocate/deallocate small integer IDs efficiently
_misc_ |**[loguru](https://github.com/emilk/loguru)** | **public domain** | C++ | **1**| flexible logging for C++
_misc_ | [tinyformat ](https://github.com/c42f/tinyformat ) | Boost | C++ | **1**| C++ typesafe printf
_misc_ | [dbgtools ](https://github.com/wc-duck/dbgtools ) | zlib | | 2 | cross-platform debug util libraries
_misc_ | [stmr ](https://github.com/wooorm/stmr.c ) | MIT | | 2 | extract English word stems
_misc_ | [levenshtein ](https://github.com/wooorm/levenshtein.c ) | MIT | | 2 | compute edit distance between two strings
There are also these XML libraries, but if you're using XML, shame on you:
- parsing: [tinyxml2 ](https://github.com/leethomason/tinyxml2 ): XML
- parsing: [pugixml ](http://pugixml.org/ ): XML (MIT license)
There are some libraries that are just _so_ awesome that even though they use more
than two files we're going to give them special dispensation to appear in their own
little list here. If you're a crazy purist, be warned, but otherwise, enjoy!
Also you might be interested in other related, but different lists:
- [clib ](https://github.com/clibs/clib/wiki/Packages ): list of (mostly) small single C functions (licenses not listed)
Sean Barrett
ago%!(EXTRA string=10 years)