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Yyjson. A fast JSON reader and writer for C programs.
ibireme.github.io/yyjson/doc/doxygen/html
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Updates
July 2026
- Improve docs
- Improve docs and comments, fix typos
- Improve docs
- Improve docs and code format
June 2026
- Merge pull request #287 from zystem/master
- Add Nim bindings for yyjson to README
- Fix Emscripten CI by building smoke tests with -O2
- Improve docs and use inline string.h fallbacks only
- Add `YYJSON_FREESTANDING` and `YYJSON_DISABLE_FILE` compile-time options
- Merge pull request #284 from dxbjavid/read-fp-stream-size-overflow
- track non-seekable stream size as usize in yyjson_read_fp
- Fix linux_musl CI failure caused by GCC 15 stringop-overflow warning
- Merge pull request #283 from dxbjavid/incr-trailing-content
- reject trailing content after document in yyjson_incr_read
- Upgrade GitHub Actions
- Merge pull request #282 from dxbjavid/pretty-str-len-overflow
- Merge pull request #281 from dxbjavid/fwrite-zero-length-file-write
- Merge pull request #276 from dxbjavid/read-fp-ftell-fail
- fix size overflow in pretty writer string length reservation
- fix zero-length fwrite reporting failure in file writers
May 2026
- Fix link in readme
- Merge pull request #280 from dwisiswant0/patch-1
- Merge pull request #278 from dxbjavid/ptr-putx-null-token
- Merge pull request #279 from dxbjavid/incr-root-number-truncation
- Merge pull request #277 from dxbjavid/obj-iter-getn-idx-wrap
- Merge pull request #274 from dxbjavid/set-raw-null-check
- Add yyjson for Go entry in README
- fix premature finalization of root number in yyjson_incr_read
- fix null pointer subtraction in unsafe_yyjson_mut_ptr_putx
August 2025
- Release —Version 0.12.0