Top POST GitHub Repositories & Tools (2026)

NeoHorse-1: Towards Recursive Self-Improvement via Agentic Post-Training with Routing Harness.

Free, simple, and intuitive online database diagram editor and SQL generator.

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

The fastest path to AI-powered full stack observability, even for lean teams.

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

A utility-first CSS framework for rapid UI development.

An open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stack applications and 280+ one-click services on your own servers.

Free and open source database client built natively for developers

Open-source GEO content engineering and multi-site distribution platform with AI quality inspection, illustrated admin help, hosted sites, browser-assisted publishing, and signed updates.

🌼 🌼 🌼 🌼 🌼  The most popular, free and open-source Tailwind CSS component library

The most popular Kubernetes Operator for PostgreSQL.

Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for building powerful applications.

The most intuitive desktop API client. Organize and execute REST, GraphQL, WebSockets, Server Sent Events, and gRPC 🦬

World's first open-source enterprise world model.

The Open Source DocuSign Alternative.

Python SQL Parser and Transpiler

Tetiva — desktop API client for HTTP, gRPC, GraphQL and WebSocket (Wails v3 + Vue 3)

Rallly is an open-source scheduling and collaboration tool designed to make organizing events and meetings easier.

Database-Backed Durable Python Workflows

Self-hosted mail server for your own domain: SMTP/IMAP/POP3, CardDAV/CalDAV, React webmail and admin console, one-command Docker Compose.