Framework GitHub Repositories (2026) · Open Source Tools

Spring Security

A unifying framework for biomedical research knowledge graphs

A modern, lightweight, and customizable C# Discord library with Native AOT support, immutable caching, voice capabilities, and complete API coverage.

🥚🥚🥚🥚 Born to build better enterprise frameworks and apps with Node.js & Koa. https://codewiki.google/github.com/eggjs/egg

Headless open-source eCommerce platform on top of PHP/Symfony/API Platform

Provides support to increase developer productivity in Java when using Redis, a key-value store. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

Mystical terminal user interface primitives 🌈

A Python framework to write Kubernetes operators in just a few lines of code

Extraordinary JavaScript UI framework with unique declarative and functional architecture

A cloud-native Go microservices framework with cli tool for productivity.

The TypeScript framework for MCP servers Build MCP tools that share services, validate inputs and apply the access rules you configure. Bring authentication, testing, agents and background jobs into the same server, with builds for Node.js, Vercel, AWS Lambda and Cloudflare Workers.

AgentEval is the comprehensive .NET toolkit for AI agent evaluation—tool usage validation, RAG quality metrics, stochastic evaluation, and model comparison—built first for Microsoft Agent Framework (MAF) and Microsoft.Extensions.AI. What RAGAS, PromptFoo and DeepEval do for Python, AgentEval does for .NET

Kora is simple, easy, performant Java & Kotlin comprehensive framework for backend applications

An immediate-mode-inspired GUI framework for Go

The PHP framework that gets out of your way

Flink Agents is an Agentic AI framework based on Apache Flink

Production-ready C++ Asynchronous Framework with rich functionality

The elegant testing framework for PHP developers and AI agents.

lsFusion is an extremely declarative open-source language-based platform for information systems development

Flexible E-Commerce Framework on top of Flamingo. Used to build E-Commerce "Portals" and connect it with the help of individual Adapters to other services.