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
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,
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
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
A tool for mocking HTTP services
NLog - Flexible and Structured Logging for various .NET Platforms
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,
PHP Curl Class makes it easy to send HTTP requests and integrate with web APIs
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
Related tags
Frequently asked questions
How many open source json projects are there?
This registry tracks 17 projects tagged json, with 249,082 GitHub stars between them. The most-adopted is fastapi at 102,402 stars.
Are these json projects free to use?
Yes — 17 of the 17 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?
15 of the 17 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.