# Tencent/rapidjson

A fast JSON parser/generator for C++ with both SAX/DOM style API

Repository: https://github.com/Tencent/rapidjson
Canonical: https://ross.abutalabs.com/products/rapidjson
Homepage: http://rapidjson.org/
Language: C++
License: NOASSERTION
License Family: other
Last push: 2025-02-05T13:28:08+00:00

## Health v2 (maintenance only)
Score: 25/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 5, release rhythm 8, longevity 100
- inputs: {"age_days": 4565, "days_push": 574, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 15121, forks 3647 (observed 2026-08-28T04:11:09.223455+00:00)

## What it is
RapidJSON is a fast, header-only C++ library for parsing and generating JSON, offering both SAX and DOM style APIs. It is self-contained with no external dependencies, supports full Unicode transcoding, JSON Pointer, and JSON Schema.

## Use cases
- parse  files in c++
- generate  output from c++ application
- high-performance  parsing with sse acceleration
- validate  against a schema
- transcode  between utf-8 and utf-16
- stream-parse large  documents with sax

## When to choose
- you need maximum  parsing speed in C++
- you want a dependency-free, header-only library
- you need SAX-style streaming or DOM-style parsing
- you need full Unicode encoding support and transcoding

## When to avoid
- you work in a language other than C++
- you prefer a batteries-included library with STL integration
- the project needs frequent updates and active feature development

## Facets
- artifact type: library
- maturity: maintenance
- function: parser, serialization
- domain: developer-tools, parsers, files
- platform: cpp, cross-platform, windows
- tags: header-only, sax, dom, -schema, -pointer, unicode, high-performance, linux, macos

## Member repositories
- Tencent/rapidjson (main) score 25

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:09.223455+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:06:36.979564+00:00, confidence not recorded.
  - readme: https://github.com/Tencent/rapidjson (fetched 2026-08-28T04:11:09.223455+00:00, sha 20181672202c)
  - homepage: http://rapidjson.org/ (fetched 2026-08-29T08:04:34.285130+00:00, sha 06036a0cd55f)
  - site_page: http://rapidjson.org/md_doc_features.html (fetched 2026-08-29T08:04:34.294532+00:00, sha 6ce4908516ff)
- Data as of 2026-08-30T08:39:29.467469+00:00.