Open source json projects
Every project in the registry tagged json, ranked by real GitHub adoption.
FastAPI framework, high performance, easy to learn, fast to code, ready for production
Prettier is an opinionated code formatter.
Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set,
Simple and fast JSON database
前端低代码框架,通过 JSON 配置就能生成各种页面。
Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.
Structured Outputs
Open Policy Agent (OPA) is an open source, general-purpose policy engine.
Lightning-fast open source search engine for big data
JSON Hero is an open-source, beautiful JSON explorer for the web that lets you browse, search and navigate your JSON files at speed. 🚀. Built with 💜 by the Tr
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
TinyDB is a lightweight document oriented database optimized for your happiness :)
A tool for mocking HTTP services
NLog - Flexible and Structured Logging for various .NET Platforms
The AI-native JSON Gantt chart engine. Dependency-free interactive timelines with React, script-tag, CLI, topological DAG solver, and formal JSON schema.
Super-fast/easy runtime validators and serializers via transformation
Headless CMS with automatic JSON API. Featuring auto-HTTPS from Let's Encrypt, HTTP/2 Server Push, and flexible server framework written in Go.
Open-source JavaScript form library for React, Angular, Vue, and plain JavaScript. Render dynamic JSON-driven forms, multi-step form wizards, surveys, quizzes,
A CLI and library to extract information from React component files for documentation generation purposes.
Pure Go implementation of jq
Every web site provides APIs.
A fast and powerful log viewer and processor that converts JSON logs or logfmt logs into a clear human-readable format.
PHP Curl Class makes it easy to send HTTP requests and integrate with web APIs
Neo.mjs is a self-evolving software organism: a professional end-to-end AI engineering team whose cross-model swarm inhabits live apps via Neural Link, Active H
A flexible JSON/YAML linter for creating automated style guides, with baked in support for OpenAPI (v3.1, v3.0, and v2.0), Arazzo v1.0, as well as AsyncAPI v2.x
Docker image with Uvicorn managed by Gunicorn for high-performance FastAPI web applications in Python with performance auto-tuning.
First class CMS experience, TypeScript API, Markdown & YAML/JSON based, no DB
A REST API library with better functionality, performance, and scalability than refit
The Standard Webhooks specification
📝 tslog - Universal Logger for TypeScript and JavaScript
Simple, Fast, Secure, Flat-File CMS
Universal Reddit Scraper - A comprehensive Reddit scraping/archival command-line tool.
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Dat
Essential Building Blocks for Scala
Multi-Modal Database replacing MongoDB, Neo4J, and Elastic with 1 faster ACID solution, with NetworkX and Pandas interfaces, and bindings for C 99, C++ 17, Pyth
A blazing fast tool for building data pipelines: read, process and output events. Our community: https://t.me/file_d_community
Related tags
Frequently asked questions
How many open source json projects are there?
This registry tracks 36 projects tagged json, with 385,800 GitHub stars between them. The most-adopted is fastapi at 104,566 stars.
Are these json projects free to use?
Yes — 36 of the 36 carry an explicit open-source licence across 6 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which json project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these json projects still maintained?
30 of the 36 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.