Yes. Here are some:
- jo_gif.cpp: tiny GIF writer (public domain)
- gif.h: animated GIF writer (public domain)
- tiny_jpeg.h: JPEG encoder (public domain)
- lodepng: PNG encoder/decoder (zlib license)
- nanoSVG: 1-file SVG parser; 1-file SVG rasterizer (zlib license)
- tinyobjloader: wavefront OBJ file loader (BSD license)
- sdf.h: compute signed-distance field from antialiased image (MIT license)
- nv_voronoi.h: find voronoi regions on lattice w/ integer inputs (public domain)
- nanoflann: build KD trees for point clouds (BSD license)
- DG_misc.h: Daniel Gibson's stb.h-esque cross-platform helpers: path/file, strings (public domain)
- MakeID.h: allocate/deallocate small integer IDs efficiently (public domain)
- utest: unit testing (MIT license)
There are some that have a source file and require a separate header file (which they may not even supply). That's twice as many files, and we at nothings/stb cannot condone this! But you might like them anyway:
- picopng.cpp: tiny PNG loader (zlib license)
- jpeg-compressor: 2-file jpeg compress, 2-file jpeg decompress (public domain)
- tinyexr: EXR image read/write, uses miniz internally (BSD license)
- miniz.c: zlib compression,decompression, zip file, png writing (public domain)
- Remotery: CPU/GPU profiler Win/Mac/Linux, using web browser for viewer (Apache 2.0 license)
- Clipper: line & polygon clipping & offsetting (Boost license)
- json.h: JSON parser (public domain)
- Zange: another JSON parser (MIT license)
There is also this XML library, but if you're using XML, shame on you:
- tinyxml2: XML (zlib license)