Parsing gigabytes of JSON per second JSON is everywhere on the Internet. Servers spend a lot of time parsing it. The simdjson library uses commonly available SIMD instructions and microparallel algorithms to break speed records. Browse the API The simdjson library on GitHub Highlights Fast: Over 4x faster than RapidJSON and 25x faster than JSON for Modern C++. Easy: First-class, easy to use and carefully documented APIs. Strict: Full JSON and UTF-8 validation, lossless parsing. Performance with ...