1.simdjson / simdjson
Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks
+33 stars
from 24,461 · score 3.53
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Ranked by Attention Score: stars gained over the last 7 complete days
10 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
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3.google / flatbuffers
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4.tidwall / gjson
Get JSON values quickly - JSON parser for Go
+2 stars
from 15,555 · score 1.10
5.kgabis / parson
Lightweight JSON library written in C.
+2 stars
from 1,475 · score 1.10
6.halaxa / json-machine
Efficient, easy-to-use, and fast PHP JSON stream parser
+2 stars
from 1,332 · score 1.10
7.SwiftyJSON / SwiftyJSON
The better way to deal with JSON data in Swift.
+1 stars
from 22,925 · score 0.69
8.valyala / fastjson
Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection
+1 stars
from 2,462 · score 0.69
9.devinus / poison
An incredibly fast, pure Elixir JSON library
+1 stars
from 2,029 · score 0.69
10.danielaparker / jsoncons
A C++, header-only library for constructing JSON and JSON-like data formats, with JSON Pointer, JSON Patch, JSON Schema, JSONPath, JMESPath, CSV, MessagePack, CBOR, BSON, UBJSON, toon-format
+1 stars
from 854 · score 0.69