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#json-parser

Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.

38 records
Tagged “json-parser”Ranked by health index
Maven
93Exceptionalhealth index
alibaba/fastjson2
🚄 FASTJSON2 is a Java JSON library with excellent performance.
Java★ 4,397Aug 28, 2026
Apache-2.0Aug 28, 2026 · metrics 2.10.0
—
93Exceptionalhealth index
nlohmann/json
JSON for Modern C++
C++★ 50.6KSep 16, 2026
MITSep 16, 2026 · metrics 2.10.0
RubyGems
93Exceptionalhealth index
ohler55/oj
Optimized JSON
C · Ruby★ 3,225Sep 5, 2026
MITSep 5, 2026 · metrics 2.10.0
npm
89Excellenthealth index
fastify/secure-json-parse
JSON.parse() drop-in replacement with prototype poisoning protection
JavaScript★ 251↓ 133M/moSep 15, 2026
Custom licenseSep 15, 2026 · metrics 2.10.0
PyPI · crates.io
89Excellenthealth index
pydantic/jiter
Fast iterable JSON parser.
Rust★ 561↓ 319M/moOct 21, 2026
MITOct 21, 2026 · metrics 2.10.0
RubyGems
89Excellenthealth index
ruby/json
JSON implementation for Ruby
Ruby · Java · C★ 782Sep 12, 2026
Custom licenseSep 12, 2026 · metrics 2.10.0
Maven
86Excellenthealth index
avaje/avaje-jsonb
java json binding library via source code generation
Java★ 95Sep 6, 2026
Apache-2.0Sep 6, 2026 · metrics 2.10.0
Go
83Excellenthealth index
buger/jsonparser
THE fastest alternative JSON parser for Go that does not require schema
Go★ 5,648Aug 28, 2026
MITAug 28, 2026 · metrics 2.10.0
crates.io
83Excellenthealth index
majiayu000/jsonrepair-rs
Repair broken JSON in Rust — fix quotes, commas, comments, truncation, and 30+ issues from LLM outputs
Rust · Python★ 4↓ 23.9K/moSep 27, 2026
MITSep 27, 2026 · metrics 2.10.0
PyPI
78Goodhealth index
simplejson/simplejson
simplejson is a simple, fast, extensible JSON encoder/decoder for Python
Python · C★ 1,710↓ 49.2M/moSep 9, 2026
Custom licenseSep 9, 2026 · metrics 2.10.0
—
77Goodhealth index
dvidelabs/flatcc
FlatBuffers Compiler and Library in C for C
C★ 768Sep 19, 2026
Apache-2.0Sep 19, 2026 · metrics 2.10.0
—
75Goodhealth index
beached/daw_json_link
Fast, convenient JSON serialization and parsing in C++
C++★ 512Sep 24, 2026
BSL-1.0Sep 24, 2026 · metrics 2.10.0
PyPI
75Goodhealth index
python-rapidjson/python-rapidjson
Python wrapper around rapidjson
C++ · Python★ 532↓ 3.8M/moSep 12, 2026
Custom licenseSep 12, 2026 · metrics 2.10.0
npm
67Goodhealth index
Eljoy/ts-jackson
A typescript library to deserialize and serialize json into classes. You can use different path pattern to resolve deeply nested structures. Every path pattern provided by lodash/get|set object is supported. Check out src/examples as a reference.
TypeScript★ 31↓ 3,230/moOct 20, 2026
MITOct 20, 2026 · metrics 2.10.0
Maven
67Goodhealth index
landawn/abacus-common
Release the power in Java programming
Java★ 106Oct 20, 2026
Apache-2.0Oct 20, 2026 · metrics 2.10.0
Go
65Goodhealth index
JohanLindvall/lightning
Go code generator for fast, allocation-light json.Unmarshaler implementations, plus a zero-copy toolkit for reading, editing and validating raw JSON
Go★ 1Sep 9, 2026
MITSep 9, 2026 · metrics 2.10.0
Packagist
65Goodhealth index
SoftCreatR/JSONPath
JSONPath implementation for PHP.
PHP★ 166↓ 1M/moSep 18, 2026
Custom licenseSep 18, 2026 · metrics 2.10.0
—
62Moderatehealth index
gecko0307/dlib
Allocators, I/O streams, math, geometry, image and audio processing for D
D★ 228Sep 12, 2026
BSL-1.0Sep 12, 2026 · metrics 2.10.0
Go
62Moderatehealth index
tidwall/gjson
Get JSON values quickly - JSON parser for Go
Go★ 15.6KSep 16, 2026
MITSep 16, 2026 · metrics 2.10.0
PyPI · crates.io
57Moderatehealth index
Rusty-Ports/fast_json_repair
Rust based JSON repair library
Rust · Python★ 5↓ 69.9K/moSep 17, 2026
MITSep 17, 2026 · metrics 2.10.0
Go
57Moderatehealth index
shiaho777/jseek
The fastest way to pull values out of JSON in Go — zero allocations, no structs, no full parse
Go★ 31Sep 11, 2026
MITSep 11, 2026 · metrics 2.10.0
—
56Moderatehealth index
felipecrs/jsonc-weaver
Modify JSONC files programmatically while preserving comments and formatting
TypeScript★ 1Sep 15, 2026
MITSep 15, 2026 · metrics 2.10.0
Go
56Moderatehealth index
gurkankaymak/hocon
go implementation of lightbend's HOCON configuration library https://github.com/lightbend/config
Go★ 91Sep 18, 2026
MITSep 18, 2026 · metrics 2.10.0
Go
54Moderatehealth index
liamg/jfather
JSON parsing with extra metadata
Go★ 9Sep 19, 2026
MITSep 19, 2026 · metrics 2.10.0
RubyGems
51Moderatehealth index
trailblazer/representable
Maps representation documents from and to Ruby objects. Includes JSON, XML and YAML support, plain properties and compositions.
Ruby★ 701Sep 10, 2026
MITSep 10, 2026 · metrics 2.10.0
Go · npm
50Moderatehealth index
d3rty/json
Flexible JSON decoding for Go — gracefully handling schema variations and forgiving mistakes.
Go★ 0Oct 20, 2026
MITOct 20, 2026 · metrics 2.10.0
Packagist
50Moderatehealth index
halaxa/json-machine
Efficient, easy-to-use, and fast PHP JSON stream parser
PHP★ 1,329↓ 1.1M/moSep 18, 2026
Apache-2.0Sep 18, 2026 · metrics 2.10.0
Hex
48Weakhealth index
nshkrdotcom/json_remedy
A practical, multi-layered JSON repair library for Elixir that intelligently fixes malformed JSON strings commonly produced by LLMs, legacy systems, and data pipelines.
Elixir★ 33↓ 2,919/moSep 9, 2026
MITSep 9, 2026 · metrics 2.10.0
npm
48Weakhealth index
sbcgua/ajson
Yet another json parser serializer for ABAP
ABAP★ 73Sep 12, 2026
MITSep 12, 2026 · metrics 2.10.0
Go
41Weakhealth index
valyala/fastjson
Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection
Go★ 2,467Sep 14, 2026
MITSep 14, 2026 · metrics 2.10.0