sonic-rs

Benchmarks show 2-4x speed improvements over serde_json in deserialization and serialization, achieved through SIMD optimizations for parsing long strings and skipping whitespace.

Acts as a drop-in replacement for serde_json by re-exporting serde traits, allowing easy migration without changing struct definitions or serde usage.

Uses a memory arena for untyped values, reducing allocations and improving cache-friendliness, which contributes to faster document parsing as explained in benchmark details.

Provides lazy field extraction with pointer paths, leveraging SIMD to skip unnecessary data for rapid retrieval, as demonstrated in the get_from benchmarks with microsecond-level performance.