Best Open Source json Libraries
A curated list of the most popular GitHub repositories tagged with json. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1fastapi/fastapi
FastAPI framework, high performance, easy to learn, fast to code, ready for production
#2typicode/json-server
Get a full fake REST API with zero coding in less than 30 seconds (seriously)
#3redis/redis
For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.
#4prettier/prettier
Prettier is an opinionated code formatter.
#5chinese-poetry/chinese-poetry
The most comprehensive database of Chinese poetry 🧶最全中华古诗词数据库, 唐宋两朝近一万四千古诗人, 接近5.5万首唐诗加26万宋诗. 两宋时期1564位词人，21050首词。
#6nlohmann/json
JSON for Modern C++
#7Asabeneh/30-Days-Of-JavaScript
30 days of JavaScript programming challenge is a step-by-step guide to learn JavaScript programming language in 30 days. This challenge may take more than 100 days, please just follow your own pace. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw
#8AykutSarac/jsoncrack.com
✨ Innovative and open-source visualization application that transforms various data formats, such as JSON, YAML, XML and CSV into interactive graphs.
#9fastapi/full-stack-fastapi-template
Full stack, modern web application template. Using FastAPI, React, SQLModel, PostgreSQL, Docker, GitHub Actions, automatic HTTPS and more.
#10httpie/cli
🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.
#11SheetJS/sheetjs
📗 SheetJS Spreadsheet Data Toolkit -- New home https://git.sheetjs.com/SheetJS/sheetjs
#12codex-team/editor.js
A block-style editor with clean JSON output
#13chinabugotech/hutool
🍬A set of tools that keep Java sweet.
#14biomejs/biome
A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.
#15baidu/amis
前端低代码框架，通过 JSON 配置就能生成各种页面。
#16fastapi/sqlmodel
SQL databases in Python, designed for simplicity, compatibility, and robustness.
#17pinojs/pino
🌲 super fast, all natural json logger
#18influxdata/telegraf
Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.
#19sindresorhus/ky
🌳 Tiny & elegant JavaScript HTTP client based on the Fetch API
#20rjsf-team/react-jsonschema-form
A React component for building Web forms from JSON Schema.
#21tidwall/gjson
Get JSON values quickly - JSON parser for Go
#22mikefarah/yq
yq is a portable command-line YAML, JSON, XML, CSV, TOML, HCL and properties processor
#23FujiwaraChoki/MoneyPrinterV2
Automate the process of making money online.
#24astrit/css.gg
700+ Pure CSS, SVG & Figma UI Icons, 6000+ glyphs, patterns, colors and layouts.
#25johnkerl/miller
Miller is like awk, sed, cut, join, and sort for name-indexed data such as CSV, TSV, and tabular JSON
#26reactiveui/refit
The automatic type-safe REST library for .NET Core, Xamarin and .NET. Heavily inspired by Square's Retrofit library, Refit turns your REST API into a live interface.
#27pocoproject/poco
The POCO C++ Libraries are powerful cross-platform C++ libraries for building network- and internet-based applications that run on desktop, server, mobile, IoT, and embedded systems.
#28bytedance/sonic
A blazingly fast JSON serializing & deserializing library
#29httpie/http-prompt
An interactive command-line HTTP and API testing client built on top of HTTPie featuring autocomplete, syntax highlighting, and more. https://twitter.com/httpie
#30testssl/testssl.sh
Testing TLS/SSL encryption anywhere on any port
#31saulpw/visidata
A terminal spreadsheet multitool for discovering and arranging data
#32kellyjonbrazil/jc
CLI tool and python library that converts the output of popular command-line tools, file-types, and common strings to JSON, YAML, or Dictionaries. This allows piping of output to tools like jq and simplifying automation scripts.
#33MariaDB/server
MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
#34python-jsonschema/jsonschema
An implementation of the JSON Schema specification for Python
#35json-schema-org/json-schema-spec
The JSON Schema specification
#36json-editor/json-editor
JSON Schema Based Editor
#37mailru/easyjson
Fast JSON serializer for golang.
#38pamburus/hl
A fast and powerful log viewer and processor that converts JSON logs or logfmt logs into a clear human-readable format.
#39NaturalIntelligence/fast-xml-parser
Validate XML, Parse XML and Build XML rapidly without C/C++ based libraries and no callback.
#40widelands/widelands
Widelands is a free, open source real-time strategy game with singleplayer campaigns and a multiplayer mode. The game was inspired by Settlers II™ (© Bluebyte) but has significantly more variety and depth to it.
#41moltar/typescript-runtime-type-benchmarks
📊 Benchmark Comparison of Packages with Runtime Validation and TypeScript Support
#42omni-us/jsonargparse
Minimal effort CLIs derived from type hints and parse from command line, config files and environment variables
#43michaelfaith/eslint-plugin-package-json
Rules for consistent, readable, and valid package.json files. 🗂️
#44kaptinlin/jsonrepair
High-performance Go library for repairing invalid JSON documents, tuned for LLM-generated output