List of single-file C/C++ libraries

2d Blendish (1 C, MIT) Blender-style widget rendering using NanoVG 2d C-Turtle (1 C++, MIT) Port of Python's Turtle to C++ 2d Cgl (2 C, MIT) C Game Library 2d Cimg (1 C++, CeCILL) Image processing toolkit (60K LoC) 2d Colourblind (1 C, ISC) Simulating colourblindness 2d Daisy (1 C++, MIT) 2D Graphics and text 2d GlyType (1, C, WTFPL2) Ultra lightweight font renderer 2d Immediate2D (2 C++, PD) Zero-configuration, immediate-mode 2D graphics for Windows 2d M_image.h (1 C, ZLIB) Image processing routines 2d RFont (1 C, ZLIB) Simple-to-use lightweight single header modular font rendering library 2d RGL (1 C, ZLIB) Simple ultra-lightweight OpenGL version abstraction based on RLGL (pipeline system) 2d Scalable-font2 (1 C, MIT) Scalable Font renderer + specification 2d Si_normalmap (1 C, PD) Image to Normal Map generator 2d Tigr (2 C, PD) Windowing, text and graphics for Windows, Linux and macOS 2d Wfc (1 C, MIT) Generate image locally similar to the input image using WFC algorithm 3d Debug-draw (1 C++, PD) API-agnostic immediate-mode debug rendering 3d Lightmapper (1 C, PD) Use your OpenGL renderer to offline bake lightmaps 3d Mikktspace (2 C, ZLIB) Compute tangent space for normal mapping 3d Model3d (1 C, MIT) 3D model format specification 3d Seamoptimizer (1 C, PD) Modify lightmap data to hide seams 3d Simple OpenGL Loader (1 C, MIT) Extensible, cross-platform OpenGL loader 3d Small3dlib (1 C, CC0) Fast and portable software renderer 3d Stb_voxel_render (1 C, PD) Minecraft-esque voxel rendering "engine" with many more features 3d Swarmz (1 C++, PD) Swarming/flocking algorithm 3d Tinygizmo (2 C++, PD) Gizmo objects for interactively editing 3d transformations 3d Vertex Cache Optimizer (1 C, PD) Vertex cache optimization of meshes 3d Vulkan Memory Allocator (1 C, MIT) Memory allocator for Vulkan ai Genann (2 C, ZLIB) Simple neural networks (ANN) ai KANN (2 C, MIT) Automatic differentiation (2 files) app RGFW (1 C, ZLIB) A multi-platform single-header user-friendly GUI framework as an alternative to GLFW argv Argh! (1 C++, BSD) Command-line argument parsing argv Clara (1 C++, BOOST) Composable, command line parser for C++ 11 and beyond argv CLI11 (1 C++, BSD) Feature-rich CLI parsing in modern C++11 argv Cmdline (1 C++, BSD) Command-line argument parsing argv Flags (1 C++, PD) Command-line argument parsing argv Kgflags (1 C, MIT) Command-line argument parsing argv Linkom (1 C, MIT) Command-line argument parsing w/ DOS-style options argv Optionparser (1 C++, MIT) Command-line argument parsing argv Parg (2 C, PD) Command-line argument parsing argv ProgramOptions.hxx (1 C++, MIT) Command-line argument parsing asm Chasm (2 C, PD) Runtime X64 assembler audio Atomix (1 C, PD) Wait-free atomic sound mixer audio Aw_ima.h (1 C, MIT) IMA-ADPCM audio decoder audio Btac1c (1 C, MIT) MS-IMA_ADPCM variant audio Chibi-xmplay (2 C, BSD3) XM module playback library audio clownresampler (1 C, BSD0) Audio resampling audio Miniaudio (2 C, PD) Audio playback and capture library audio Miniflac (1 C, BSD0) FLAC decoder with a push-style API audio Minimp3 (1 C, CC0) Minimalistic MP3 decoder with sse/neon support audio MojoAL (1 C, ZLIB) Full OpenAL 1.1 implementation audio Nanoalsa (1 C, MIT) Tiny PCM playback under Linux audio Pocketmod (1 C, MIT) ProTracker MOD file renderer audio Stb_hexwave (1 C, PD) Audio waveform synthesizer audio Stb_vorbis (1 C, PD) Decode ogg vorbis files from file/memory to float/16-bit signed output audio Tflac (1 C, BSD0) Freestanding FLAC encoding library in C89 audio Organya.h (1 C, BSD0) Organya/OrgMaker music renderer audio TinySoundFont (1 C, MIT) SoundFont2 loader & synthesizer bench Picobench (1 C++, MIT) Microbenchmarking bench Ubench.h (1 C, PD) Microbenchmarking c Errnoname (2 C, BSD0) Extended errno messages c Minicoro (1 C, PD-0MIT) Stackful cross-platform coroutine library c Stb_sprintf (1 C, PD) Fast sprintf, snprintf for C/C++ cpp Filesystem (1 C++, MIT) Implementation of std::filesystem cpp Outcome (1 C++, APACHE2-BOOST) Outcome and result C++ containers crypt Ggentropy (2 C++, ISC) Cross platform entropy library crypt Monocypher (2 C, PD) High-quality small cryptography library crypt Random3 (1 C, PD) Crypt-random generator crypt TweetNaCl (2 C, PD) High-quality tiny cryptography library csv CSVstream (1 C++, MIT) CSV parser csv Fast C++ CSV Parser (1 C++, BSD) CSV parser csv Rapidcsv (1 C++, BSD) CSV parser csv Vince's CSV Parser (1 C++, MIT) CSV parser and serializer date Date (1 C++, MIT) Date and time libraries debug B_stacktrace (1 C, MIT) Stack tracing debug Dbgtools (2 C, ZLIB) Cross-platform debug util libraries debug Debug-assert (1 C++, ZLIB) Modular assertion macro debug Debugbreak (1 C, BSD) Programmatic debug break debug Loguru (1 C++, PD) Flexible logging debug Pempek_assert.cpp (2 C++, WTFPL2) Flexible assertions dev Libue (1 C, MIT) Helper library for Linux device hot-plug event ds AArray (1 C, PD) Arrays/strings: generic, safe ds Avl (2 C, PD) AVL tree ds Cds_algo (1 C, PD) Collection of data structures (queue, stack, graph, heap...) ds Convenient Containers (1 C, MIT) Typesafe data structures (vector, list, map, set, string, etc.) with a fully generic API and no boilerplate ds DG_dynarr.h (1 C, PD) Typesafe dynamic arrays (like std::vector) for plain C ds Dynarr (1 C, PD) Dynamic array container ds DynaVar (1 C++, GPL3) Object which can store any type of primitive data type ds Fifo_declare.h (1 C, LGPL2) Thread/core safe FIFO ds Itlib (1 C++, MIT) Several C++11 standard-contaner-like libraries and helpers ds Jhr_skip_list (1 C++, PD) Skip Lists ds Jrsl (1 C, PD) Skip Lists ds Klib (2 C, MIT) Many 2-file libs: hash, sort, b-tree, etc ds Libintrusive (2 C, PD) Intrusive data structures ds Libpqueue (2 C, BSD) Priority queue (heap) ds LinkedList (2 C, MIT) Linked list C++ ds Mempool (1 C++, MIT) Efficient minimal memory pool implementation for C++ ds PackedArray (2 C, WTFPL2) Memory-efficient array of elements with non-pow2 bitcount ds Selist (2 C, ISC) Space-efficient linked-list ds Simclist (2 C, BSD) Linked-list ds Stb_ds (1 C, PD) Typesafe dynamic array and hash tables for C, will compile in C++ ds Uthash (2 C, BSD) Several 1-header, 1-license-file libs: generic hash, list, etc ds Verstable (1 C, MIT) High performance and typesafe generic hash table engine Kit (1 C, PD) Tiny library for making small games with big pixels engine OlcPixelGameEngine (1 C++, BSD3) Game engine engine Punity (1 C, MIT) A tiny game engine in C file ByteArray (2 C, GPL3) Library to read, write and print binary files file Dirent (1 C, MIT) Dirent for Windows: retrieve file & dir info file Miniphysfs (1 C, ZLIB) Single-file port of PhysFS, a fs/zip abstraction file Tfile (1 C++, MIT) FILE* wrapper does read-write-append-seek-close (Win/Mac/Unix) file TinyDir (1 C, BSD) Cross-platform directory reading (Win/POSIX/MinGW) file Whereami (2 C, WTFPL2) Get path/filename of executable or module font Blit-fonts (1 C, ISC) Bitmap font blitters font Ssfn.h (1 C, MIT) Scalable/bitmap/pixmap font renderer font Stb_easy_font (1 C, PD) Quick-and-dirty easy-to-deploy bitmap font for printing frame rate, etc font Stb_truetype (1 C, PD) Parse, decode, and rasterize characters from truetype fonts game Raycastlib.h (1 C, CC0) Advanced raycasting rendering library, pure C99 with no dependencies, only 32bit int math game Roguelike.h (1 C, MIT) Simple game library for Roguelike games: pathfinding, Dijkstra graphs, dungeon generation... game Stb_connected_components (1 C, PD) Incrementally compute reachability on grids game Stb_herringbone_wang_tile (1 C, PD) Herringbone Wang tile map generator game Stb_tilemap_editor (1 C, PD) Embeddable tilemap editor hash Hash.c (2 C, PD) SHA1/SHA3/MD5 hashes hash Lonesha256 (1 C, PD) SHA256 implementation hash PicoSHA2 (1 C++, MIT) SHA256 implementation hash XxHash (2 C, BSD) Fast hash function image Bitmap (1 C++, MIT) Bitmap decoder and utilities image Cro_mipmap.h (1 C, PD) Average, min, max mipmap generators image Framepacker (1 C++, MIT) Texture bin packing algorithm image Jo_sift (1 C, PD) Image feature detection and matching image Stb_image (1 C, PD) Image loading/decoding from file/memory: JPG, PNG, TGA, BMP, PSD, GIF, HDR, PIC image Stb_image_resize (1 C, PD) Resize images larger/smaller with good quality image Stb_image_write (1 C, PD) Image writing to disk: PNG, TGA, BMP image Stb_perlin (1 C, PD) Perlin's revised simplex noise w/ different seeds image Stb_rect_pack (1 C, PD) Simple 2D rectangle packer with decent quality image Tiffloader (2 C, PD) TIFF image loader image EXR Miniexr (2 C++, PD) OpenEXR writer, needs header file image EXR Tinyexr (1 C, BSD) EXR image read/write, uses miniz internally image GIF Gif.h (1 C++, PD) Animated GIF writer (can only include once) image GIF Gif_load (1 C, PD) (animated) GIF reader image GIF Jo_gif.cpp (1 C++, PD) Animated GIF writer (CPP file can also be used as H file) image JPG Jpeg-compressor (2 C++, PD) 2-file JPEG compress, 2-file JPEG decompress image JPG NanoJPEG (1 C, MIT) JPEG decoder image JPG Tiny_jpeg.h (1 C, PD) JPEG encoder image JPG EXIF Easyexif (2 C++, BSD2) EXIF metadata extractor for JPEG images image JPG EXIF TinyEXIF (2 C++, BSD) Parse EXIF data from JPEG (XMP w/ TinyXML2 lib) image PDF PDFgen (2 C, PD) PDF writer image PNG Lodepng (2 C, ZLIB) PNG encoder/decoder image PNG Picopng.cpp (2 C++, ZLIB) Tiny PNG loader image PNG TinyPngOutput (2 C, LGPLv3) PNG writer image PNM PNM (1 C++, APACHE2) PBM, PGM and PPM reader and writer image SVG NanoSVG (1 C, ZLIB) 1-file SVG parser; 1-file SVG rasterizer image WEBP Jebp (1 C, 0MIT) Single header WebP decoder ini Inih (2 C, BSD) .ini file parser input EasyTab (1 C, PD) Multi-platform tablet input json Ajson (1 C++, BOOST) JSON serialize & deserialize w/ STL support json CJSON (1 C, MIT) JSON parser json CJSON (1 C, MIT) JSON parser json Jsmn (1 C, MIT) Minimalistic JSON parser json Json-build (1 C, MIT) JSON serializer json Json.h (1 C, PD) JSON parser json Json.hpp (1 C++, MIT) JSON parse, serialize, deserialize json Jsonc (1 C, MIT) Extremely fast and extremely small (~60 SLoC) JSON parser json Jzon.h (2 C++, MIT) JSON parser json Parson (2 C, MIT) JSON parser and serializer json PicoJSON (1 C++, BSD) JSON parse/serializer json Sjson (1 C, BSD2) JSON encode/decoder logic FFSM2 (1 C++, MIT) Flat FSM logic HFSM2 (1 C++, MIT) Hierarchical FSM math Amoeba (1 C, MIT) Constraint solver (Cassowary) w/Lua binding math Cds_spline (1 C, PD) Spline utils math Ceval-single-header (1 C, MIT) A single-header library for parsing and evaluation of arithmetic expressions math Clipper (2 C++, BOOST) Line & polygon clipping & offsetting math Delaunay (2 C++, BSD3) 2D and 3D Delaunay triangulation math Df (1 C, PD) Find voronoi region in linear time of size of lattice math Dvector (1 C, PD) 2D/3D vector/quaternion/matrix math library math ExprTk (1 C++, MIT) Runtime mathematical expression parser and evaluation engine. math Fft (1 C++, PD) Fast Fourier Transform math HMM Toolkit (1 C, GPL2) Discrete and continuous Hidden Markov Models (DHMM, CHMM) math Jc_voronoi (1 C, MIT) Find voronoi regions on float/double data math Linmath.h (1 C, WTFPL2) Vector library math M_math.h (1 C, ZLIB) Math with C/OpenCL portability math Matrix-hpp (1 C++, MIT) Matrix class container for linear algebra computations math Nanoflann (1 C++, BSD) Build KD trees for point clouds math Nv_voronoi.h (1 C, PD) Find voronoi regions on lattice w/ integer inputs math Omm (1 C++, MIT) Template open multi-methods math OpenNL (2 C++, BSD3) Linear and eigen solvers math Par_msquares (1 C, MIT) Convert (binarized) image to triangles math Par_shapes (1 C, MIT) Generate various 3d geometric shapes math Par_streamlines (1 C, MIT) Tessellate wide lines and curves with shading attributes math PoissonGenerator.h (1 C++, MIT) Poisson disk points generator (disk or rect) math PolyPartition (2 C++, MIT) Polygon triangulation, partitioning math Precision (1 C++, PD) Arbitrary-precision integer and rational arithmetic math Prns.h (1 C, PD) Seekable pseudo-random number sequences math Rfft.h (1 C, PD) Fast Fourier Tranform for arbitrary array sizes math Sdf.h (1 C, MIT) Compute signed-distance field from antialiased image math ShaderFastLibs (1 C++, MIT) (also HLSL) Approximate transcendental functions optimized for shaders (esp. GCN) math Simple_linear_regression (1 C, MIT) Simple linear regression math Simrank.hpp (2 C++, MIT) SimRank graph similarity algorithm math Sobol.h (1 C, PD) Sobol & stratified sampling sequences math Statistics-Tool-Box (1 C, PD) Statistical functions math Stb_divide (1 C, PD) More useful 32-bit modulus math SummedAreaTable (1 C++, MIT) Summed-Area Table generation and sum/avg queries math TinyExpr (2 C, ZLIB) Evaluation of math expressions from strings math Tomas Akenine-Moller snippets (2 C, PD) Various 3D intersection calculations, not lib-ified math Vmath (1 C, PD) Vector/matrix library math Voxelizer (1 C, MIT) Convert triangle mesh to voxel triangle mesh math Xatlas (2 C++, MIT) Mesh parameterization mem Buddy_alloc (1 C, BSD0) Buddy memory allocator mem Stb_leakcheck (1 C, PD) Quick-and-dirty malloc/free leak-checking mem Wb_alloc (1 C, PD) Custom allocators in a single-header mesh Cgltf (1 C, MIT) GlTF 2.0 file loader mesh Fast_obj.h (1 C, MIT) Wavefront OBJ file loader mesh M3d.h (1 C, MIT) Model 3D importer/exporter (with Blender, Goxel, WebGL JS and assimp integration) mesh Objzero (2 C, MIT) Wavefront OBJ file loader mesh Qll_q3.h (1 C++, WTFPL2) Quake3 BSP loader mesh Tinyobjloader-c (1 C, MIT) Wavefront OBJ file loader mesh Tinyobjloader (1 C++, MIT) Wavefront OBJ file loader mesh Tinyply (2 C++, PD) PLY mesh file loader mesh Tk_objfile (1 C, MIT) OBJ file loader misc ASAP (1 C++, MIT) Library for parsing, printing, iterating and operating on dates. misc ASN.1 DER (2 C, PD) Encoder/decoder for ASN.1 DER format. misc CLM_LIBS (1 C, PD) Diverse utilities misc Color-Toolkit (1 C, GPL2) Color conversion utils (RGB, XYZ, Lab, CIE76, CIE94 and CIEDE200) misc Cpp-generators (1 C++, BSD) Generators in C++ misc Ebnn.h (1 C, MIT) BNN (Binarized Neural Networks) misc H.h (1 C, GPL3) Diverse utilities misc Hedley (1 C, PD) Compiler portability, optimization, static analysis, etc. misc MakeID.h (1 C++, PD) Allocate/deallocate small integer IDs efficiently misc Mmu (2 C, MIT) Memory management and data structure toolset misc OpenGA (1 C++, MPL2) A C++ Generic Algorithm solver library misc PlusCallback (1 C++, ZLIB) Function/method callbacks misc Process.h (1 C, PD) Process control API misc QR-Code-generator (2 C, MIT) QR Code generator misc Qsort (1 C, MIT) Qsort algorithm as a C macro misc Scogem.c (2 C, PD) URL parser misc Sili (1 C, PD) C toolchain for modern C programming, strings, arrays, files, threading, ect misc Smallxrm.c (2 C, PD) Implementation of X resource manager misc Stb_include (1 C, PD) Implement recursive #include support, particularly for GLSL misc Stmr (2 C, MIT) Extract English word stems misc X.h (1 C, MULAN2) Cross-platform C/C++ utilities nav M_path_finding.h (1 C, ZLIB) Floodfill-based path finding nav Micropather (2 C++, ZLIB) Pathfinding with A* net Civetweb (2 C, MIT) HTTP server, fork of Mongoose net Cpp-httplib (1 C, MIT) Cross-platform HTTP server/client net Enet (1 C, MIT) Reliable UDP networking library net EWS (1 C, BSD) HTTP server net Happyhttp (2 C++, ZLIB) HTTP client requests net Libcluon (1 C++, MPL2) Cross-platform socket wrapper and data marshalling with native implementations for Protobuf, LCM/ZCM, JSON, and MsgPack serialization/deserialization net Librg (1 C, BSD3) World/entity synchronization multiplayer library net LUrlParser (2 C++, MIT) Lightweight URL & URI parser RFC 1738, RFC 3986 net Mongoose (2 C, GPLv2) HTTP server net Netq (1 C, MIT) Reliable datagram library net Par_easycurl.h (1 C, MIT) CURL wrapper net Simpletls.c (2 C, PD) Function to create a socket and connect to a remote server with TLS net Swrap (1 C, PD) TCP and UDP socket wrapper net Tiniest-analytics (2 C++, MIT) Cross-platform analytics for games (using Google Analytics <4) net Tiny-MQTT-c (4 C, PD) Small implementation of (some of) the MQTT protocol in C net Tlse (2 C, PD-BSD2) TLS v1.0, 1.2, 1.3 and DTLS 1.0, 1.2 implementations net Webster (2 C++, APACHE2) Standalone HTTP server/client net Yocto (2 C, PD) Non-production-use HTTP server net Zed_net (1 C, PD) Cross-platform socket wrapper net Znet (1 C, MIT) Cross-platform networking w/ Lua binding pack Dmc_unrar (1 C, GPL2) RAR file decompression pack Fastlz (2 C, MIT) Fast but larger LZ compression pack Lz4 (2 C, BSD) Fast but larger LZ compression pack Microtar (2 C, MIT) Lightweight tar library pack Miniz.c (1 C, MIT) Compression, decompression, ZIP file, PNG writing pack Nibrans (1 C, PD) Adaptive rANS library pack Pithy (2 C, BSD) Fast but larger LZ compression pack Rle (1 C, MIT) Run-length en/decoder pack Stb_dxt (1 C, PD) Real-time DXT compressor parse Cmp (2 C, MIT) MessagePack parser and serializer parse Cpp-peglib (1 C, MIT) PEG (Parsing Expression Grammars) library parse Furi (1 C, MIT) URL & URI parsing parse Html-parse.c (2 C, GPL) HTML parser (wget) parse SLRE (1 C, GPL2) Regular expression matcher parse Stb_c_lexer (1 C, PD) Simplify writing parsers for C-like languages parse Tok (1 C, MIT) Configurable tokenizer parse Tomlplusplus (1 C++, MIT) TOML parser and serializer parse Udisasm (1 C, MIT) Extremely small disassembler for ARMv8.2 AArch64 (~65k) parse Unformat (1 C++, PD) Parses formatted strings (reverse of std::format) prng Random (1 C++, MIT) Convenient API for random prng Ranxoshi256 (1 C, PD) Xoshiro256 algorithm prng SimplexNoise (1 C++, BSD2) Collection of noise generators prng UTL Random (1 C++, MIT) Fast random for Monte-Carlo simulations profile MicroProfile (4 C++, PD) CPU (and GPU?) profiler, 1-3 header files, uses miniz internally profile Prof (1 C, MIT) Profiler for Linux profile Remotery (2 C, APACHE2) CPU/GPU profiler Win/Mac/Linux, using web browser for viewer raster Canvas_ity (1 C++, ISC) 2D rasterizer regex Remimu (1 C, CC0) Regex engine script Duktape (2 C, MIT) Embeddable JavaScript engine script LIL (2 C, ZLIB) Interpreter for a Tcl-like scripting language script Lualite (1 C++, MIT) Generate Lua bindings in C++ script Minilua (1 C, MIT) Single-file port of Lua scripting language script MY-BASIC (2 C, MIT) Interpreter for a BASIC dialect scripting language script Picol (1 C, BSD) Interpreter for a Tcl-like scripting language script S7 (2 C, BSD) Interpreter for a subset of Scheme (R5RS/R7RS) script Xpl (1 C, WTFPL2) X Programming Language serial Archive (1 C++, PD) Binary serialize & deserlize w/ STL support serial Blob_tree (1 C++, MIT) Binary tree serializer serial Cista (1 C++, MIT) Cross-platform high performance zero copy C++17 serialization/deserialization serial Libcluon (1 C++, MPL2) Cross-platform data serialization/deserialization with native implementations for Protobuf, LCM/ZCM, JSON, and MsgPack serial Qserial (1 C++, BSD3) Schema-driven serialization library serial Serialization helper (1 C, WTFPL2) Serialization helper serial Visit_struct (2 C++, BOOST) Struct-field reflection string Csplit (1 C, MIT) String splitting and processing single-header library string Dfa (2 C, MIT) Fast UTF-8 decoder (need a header file) string Gb_string.h (1 C, PD) Dynamic strings string Ggformat (2 C++, ISC) Printf replacement string Inja.hpp (1 C++, MIT) Template engine string Levenshtein (2 C, MIT) Compute edit distance between two strings string Obfuscate (1 C++, PD) Guaranteed compile-time string literal obfuscation library for C++14 string Str.h (1 C++, PD) Simple C++ string type with an optional local buffer string Str (2 C, BSD) Yet another string library for C language string Str_view.hpp (1 C++, MIT) Null-termination-aware string-view class string Tinyformat (1 C++, BOOST) Typesafe printf string Utf8 (1 C, PD) UTF-8 string library svg SimpleSVG (1 C++, BSD3) Easy to use SVG library sys Doops (1 C, PD) Event loop library sys Endianness.h (1 C, PD) Endianness conversion and detection sys JArgsParser (1 C++, MIT) Arguments parser sys Openmodal (1 C, MIT) Native file modals sys Rang (1 C++, PD) Cross-platform colored console text sys Xproc (2 C++, MIT) Foreign Process Information thread Bikeshed.h (1 C, MIT) Cross-platform lock free fixed memory hierarchical work scheduler thread Cds_job (1 C++, PD) Lock-free job queue thread Cds_sync (1 C, PD) Collection of synchronization primitives thread TinyCThread (2 C, ZLIB) Cross-platform implementation of the C11 Threads API thread TinyThread++ (2 C++, ZLIB) Cross-platform implementation of the C++11 Threads API ui Clay (1 C, ZLIB) High performance 2D UI layout library ui Dear imgui (9 C++, MIT) An immediate-mode GUI formerly named "ImGui"; 3rd-party C wrapper ui Libcmdf (1 C, PD) A small library for writing CLI applications ui Linenoise (2 C, BSD) Terminal readline w/ history etc ui Nuklear (1 C, PD) Minimal GUI toolkit ui Stb_textedit (1 C, PD) Guts of a text editor for games etc implementing them from scratch ui Tinyfiledialogs (2 C, ZLIB) Modal dialogs inc. file open/save (Win/Mac/Linux) ui Wcwidth9 (1 C, APACHE2) Platform independent wcwidth with full unicode 9 support ui Webview (1 C, MIT) Cross-platform webview library unit Catch2 (1 C++, BOOST) Unit testing unit Catch (1 C++, BOOST) Unit testing unit Clove-unit (1 C, MIT) Unit testing unit Doctest (1 C++, MIT) Unit testing unit Fctx (1 C, BSD) Unit testing unit Greatest (1 C, ISC) Unit testing unit Hippomocks (1 C++, LGPL) Unit testing unit Labrat (1 C, PD) Unit testing unit Minctest (1 C, ZLIB) Unit testing unit Munit (1 C, MIT) Unit testing unit Picotest (1 C, MIT) Unit testing unit Rexo (1 C, PD) Framework for C89/C++ featuring automatic registration of tests and a polished API unit SPUT (1 C, BSD) Unit testing unit Trompeloeil (1 C++, BOOST) Unit testing unit Utest.h (1 C, PD) Unit testing unit Utest (1 C, MIT) Unit testing unit Walter (1 C, PD) Unit testing uuid Uuid4 (2 C, WTFPL2-MIT) UUID v4 generator uuid Uuid_h (1 C, ZLIB) UUID generator vector Algebra3.h (1 C++, PD) Vector utilities for 2, 3, and 4 element vectors, all inline vector CcVector.h (1 C, PD) Vector, quaternion and matrix math vector Handmade Math (1 C, PD) Vector math vector Hypatia (1 C, MIT) Vector/matrix/quaternion math vector Linalg.h (1 C++, PD) Vector/matrix/quaternion math vector Linalg (1 C, ISC) Vector/matrix/quaternion math video Jo_mpeg, original (1 C, PD) MPEG file writer video Pl_mpeg (1 C, MIT) MPEG1 video and audio decoder xml Pugixml (2 C++, MIT) Light-weight C++ XML processing library xml Tinyxml2 (2 C++, ZLIB) Simple, small, efficient, C++ XML parser xml Yxml (2 C, MIT) Small, fast and correct XML parser yaml Mini-yaml (2 C++, MIT) YAML parser and serializer