orjson is a fast, correct JSON library for Python. It benchmarks as the fastest Python library for JSON and is more correct than the standard json library or other third-party libraries. It serializes dataclass, datetime, numpy, and UUID instances natively. Despite not being 100% compatible, it is often used as replacement of than JSON functions in core Python 3.

As of Jan 29th 2026 (https://github.com/ijl/orjson/commit/d58168733189f82b3fd0c05...) open issue tracker or pull requests has been removed from the orjson repo due to signal-to-noise ratio.

Might be due to high amount of LLM-assisted noisy bug reports and/or PRs that are plagueing various projects on Github. It is unfortunate that even old issues won't be accessible for reference.

What do you guys think?