simd-json
A high-performance Rust JSON parser porting simdjson's SIMD techniques, with Serde compatibility.
What is simd-json?
simd-json is a Rust port of the simdjson C++ library that uses SIMD instructions (AVX2, SSE4.2, NEON, or simd128) to parse JSON documents at maximum performance. It solves the problem of high-speed JSON parsing in Rust by providing both a DOM-based API for flexible data manipulation and full Serde compatibility for seamless integration with the Rust ecosystem. When SIMD instructions are unavailable, it falls back to a native Rust parser to ensure broad compatibility.
Rust developers working on performance-critical applications that require high-throughput JSON parsing, such as web servers, data processing pipelines, or real-time analytics systems. It is also suitable for projects needing a drop-in replacement for serde_json with significant speed improvements.
Developers choose simd-json over alternatives because it delivers near-C++ levels of parsing speed through SIMD acceleration while maintaining Rust ergonomics and Serde compatibility. Its unique selling point is the combination of extreme performance via SIMD instructions, flexible APIs (DOM, Tape, and Serde), and configurable features like known-key memoization and 128-bit integer support.
Overview
Rust port of simdjson
Use Cases
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