This repository is the well-known stb single-file public domain C/C++ library collection by Sean Barrett. It contains over 20 self-contained header-only libraries covering a wide range of functionality: image loading and writing (stb_image, stb_image_write), image resizing (stb_image_resize2), TrueType font parsing and rasterization with signed-distance fields (stb_truetype), Ogg Vorbis audio decoding (stb_vorbis), dynamic data structures (stb_ds), high-performance formatted output (stb_sprintf), rectangle packing (stb_rect_pack), text editing widget logic (stb_textedit), Perlin noise (stb_perlin), voxel rendering (stb_voxel_render), tilemap editing (stb_tilemap_editor), and many more. Each library is designed to be dropped into a project by including the header and defining an implementation macro in exactly one source file, requiring no external dependencies beyond standard C libraries. The repo also includes extensive test programs, fuzzing harnesses, and demo applications (e.g., a Minecraft-style voxel viewer, font oversampling demo). It is widely used in game development, tooling, and embedded systems due to its ease of integration and permissive licensing.