function: middleware
2345 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| Beego Beego is a high-performance, full-stack web framework for Go, inspired by Tornado, Sinatra, and Flask. It bundles an ORM, session managemen… | 92 | 32414 | active |
| NGINX NGINX is a high-performance HTTP web server, reverse proxy, content cache, load balancer, API gateway, and TCP/UDP/mail proxy server writte… | 99 | 31504 | stable |
| symfony/symfony Symfony is a full-stack PHP framework for building web and console applications, plus a set of reusable, decoupled PHP components used by p… | 95 | 31135 | stable |
| encode/django-rest-framework Django REST framework is a powerful and flexible toolkit for building Web APIs on top of Django. It provides serializers, class-based views… | 94 | 30144 | stable |
| AgentScope AgentScope is a production-ready multi-agent framework for building LLM-powered agents with ReAct reasoning, tool execution, MCP integratio… | 93 | 29706 | active |
| envoyproxy/envoy Envoy is a CNCF-hosted, high-performance C++ edge, middle, and service proxy designed for cloud-native and AI-native applications. It provi… | 95 | 28822 | stable |
| authelia/authelia Authelia is an open-source authentication and authorization server and portal providing single sign-on (SSO) and multi-factor authenticatio… | 95 | 28712 | active |
| alibaba/druid Alibaba Druid is a high-performance JDBC database connection pool for Java that integrates SQL parsing, SQL firewall protection, and real-t… | 77 | 28179 | stable |
| Automattic/mongoose Mongoose is a MongoDB object modeling (ODM) library for Node.js and Deno that provides schema-based data modeling with type casting, valida… | 95 | 27474 | stable |
| cloudflare/pingora Pingora is a Rust framework from Cloudflare for building fast, reliable, and programmable network services such as HTTP proxies and load ba… | 84 | 27278 | stable |
| tokio-rs/axum Axum is an HTTP routing and request-handling library for Rust built on Tokio, focusing on ergonomics and modularity. It integrates deeply w… | 92 | 26963 | stable |
| ApolloAuto/apollo Apollo is an open-source autonomous driving platform providing a high-performance, modular software stack for developing, testing, and depl… | 57 | 26807 | active |
| decolua/9router 9Router is a self-hosted AI gateway/router that connects AI coding tools like Claude Code, Cursor, Codex, and Cline to 60+ LLM providers th… | 75 | 26418 | active |
| Vapor Vapor is a server-side HTTP web framework written in Swift, built on SwiftNIO with a non-blocking, event-driven architecture. It includes a… | 99 | 26192 | stable |
| Dapr Dapr is a portable, CNCF-graduated distributed application runtime that runs as a sidecar and exposes building-block APIs for service invoc… | 99 | 26037 | stable |
| go-kratos/kratos Kratos is a lightweight Go framework for building cloud-native microservices, offering APIs for transport (HTTP/gRPC), middleware, registry… | 91 | 25892 | active |
| rwf2/Rocket Rocket is an async web framework for Rust focused on usability, security, extensibility, and speed. It provides macro-based routing, compil… | 49 | 25782 | stable |
| kataras/iris Iris is a fast, feature-rich HTTP/2 web framework for Go with first-class MVC support, built-in dependency injection, and an expressive API… | 65 | 25558 | active |
| flipped-aurora/gin-vue-admin A full-stack admin development platform combining a Go (Gin) backend with a Vue 3 + Element Plus frontend, featuring JWT auth, Casbin-based… | 92 | 24971 | active |
| zama-ai/fhevm FHEVM is a full-stack framework from Zama that enables confidential smart contracts on EVM-compatible blockchains using Fully Homomorphic E… | 86 | 24825 | active |
| actix/actix-web Actix Web is a powerful, pragmatic, and extremely fast asynchronous web framework for Rust. It provides type-safe routing, flexible respond… | 99 | 24801 | stable |
| Node-RED Node-RED is a browser-based, low-code, flow-based programming tool for wiring together event-driven applications, originally developed at I… | 97 | 23590 | stable |
| phoenixframework/phoenix Phoenix is a productive, full-featured web framework for Elixir that emphasizes developer productivity and real-time features. It supports … | 99 | 23125 | stable |
| micro/go-micro Go Micro is a Go framework and CLI that combines an AI agent harness with a microservices framework, giving agents tools, memory, guardrail… | 95 | 23043 | active |
| Sails.js Sails.js is a realtime MVC web framework for Node.js, built on Express and Socket.io, designed to resemble Ruby on Rails. It bundles the Wa… | 61 | 22804 | stable |
| gofr-dev/gofr GoFr is an opinionated Go framework for accelerated microservice development, with built-in support for databases, pub/sub, gRPC, and out-o… | 89 | 20968 | active |
| apache/shardingsphere Apache ShardingSphere is an enterprise distributed database ecosystem that turns heterogeneous databases (MySQL, PostgreSQL, etc.) into a d… | 79 | 20788 | stable |
| tashfeenahmed/freellmapi FreeLLMAPI is an open-source, self-hosted LLM gateway that aggregates free tiers from 34 providers (600+ free model endpoints) behind a sin… | 81 | 20682 | active |
| jasontaylordev/CleanArchitecture A .NET solution template that scaffolds production-ready ASP.NET Core applications following Clean Architecture principles, with optional A… | 91 | 20491 | active |
| apache/casbin Apache Casbin is an open-source authorization library that enforces access control using models such as ACL, RBAC, ABAC, ReBAC, and MAC, de… | 98 | 20349 | stable |
| graphql/graphql-js GraphQL.js is the JavaScript/TypeScript reference implementation of the GraphQL query language for APIs. It provides tools for building Gra… | 96 | 20343 | stable |
| grpc-ecosystem/grpc-gateway A protoc plugin that reads protobuf service definitions with google.api.http annotations and generates a reverse-proxy server translating R… | 98 | 19991 | stable |
| probelabs/goreplay GoReplay is an open-source CLI tool written in Go that captures live HTTP traffic from production servers and replays it against test envir… | 52 | 19318 | active |
| AdonisJS AdonisJS is a batteries-included, TypeScript-first fullstack MVC web framework for Node.js. It ships with an ORM (Lucid), authentication, v… | 98 | 19101 | stable |
| elysiajs/elysia Elysia is a TypeScript backend web framework built for Bun, emphasizing end-to-end type safety, schema-driven validation, and ergonomic dev… | 94 | 18975 | active |
| µWebSockets µWebSockets is a C/C++ web server library providing highly optimized HTTP and WebSocket handling with a built-in URL router and pub/sub fea… | 96 | 18966 | stable |
| sanic-org/sanic Sanic is a fast, asynchronous Python web framework and web server supporting async/await syntax and ASGI compliance. It bundles a productio… | 84 | 18645 | stable |
| Tencent/APIJSON APIJSON is a Tencent open-source Java ORM and JSON-based API protocol that auto-generates CRUD APIs and documentation without backend codin… | 98 | 18402 | active |
| bcit-ci/CodeIgniter CodeIgniter is an open-source PHP framework with a very small footprint for building full-featured web applications, encouraging but not en… | 32 | 18165 | active |
| langchain-ai/langchainjs LangChain.js is a TypeScript framework for building LLM-powered applications, providing standard interfaces for agents, models, embeddings,… | 93 | 18135 | active |
| aidenybai/million Million.js is an optimizing compiler for React that replaces React's virtual DOM reconciliation with a faster 'block' virtual DOM that diff… | 60 | 17669 | active |
| ZLMediaKit/ZLMediaKit ZLMediaKit is a high-performance, enterprise-grade streaming media server framework written in C++11, supporting RTSP, RTMP, HLS, HTTP-FLV,… | 77 | 17458 | stable |
| aio-libs/aiohttp aiohttp is an asynchronous HTTP client and server framework for Python built on asyncio. It supports client and server WebSockets out of th… | 97 | 16526 | stable |
| Quarkus Quarkus is a cloud-native Java framework optimized for containers and Kubernetes, offering fast startup, low memory footprint, and GraalVM … | 95 | 15848 | stable |
| Gotify Gotify is a self-hosted server for sending and receiving real-time messages over WebSocket, with a REST API for pushing messages and a slee… | 97 | 15801 | stable |
| ArduPilot/ardupilot ArduPilot is an open-source autopilot firmware suite (ArduPlane, ArduCopter, ArduRover, ArduSub) written in C++ that controls unmanned vehi… | 98 | 15748 | stable |
| whistle Whistle is a cross-platform, Node.js-based network debugging and packet-capture proxy supporting HTTP, HTTPS, HTTP/2, WebSocket, and TCP tr… | 76 | 15663 | active |
| Effect-TS/effect Effect is a TypeScript library and ecosystem for building production-grade, type-safe applications, centered on the Effect type that encode… | 94 | 15514 | stable |
| feathersjs/feathers Feathers is a full-stack framework for building web APIs and real-time applications in TypeScript or JavaScript. It provides a service-orie… | 98 | 15267 | stable |
| TanStack/router TanStack Router is a fully type-safe, client-first router for React and Solid applications, with file-based routing, nested layouts, loader… | 95 | 14995 | active |
| janpaepke/ScrollMagic ScrollMagic is a lightweight, zero-dependency JavaScript/TypeScript library for reacting to the user's scroll position, built as a convenie… | 77 | 14955 | active |
| zitadel/zitadel ZITADEL is an open-source identity and access management (IAM) platform providing authentication and authorization out of the box, includin… | 95 | 14864 | active |
| hapijs/hapi @hapi/hapi is a mature Node.js web framework for building HTTP servers and APIs with secure defaults, a rich plugin system, and zero extern… | 67 | 14793 | stable |
| pipecat-ai/pipecat Pipecat is an open-source Python framework (BSD-2) for building real-time voice and multimodal conversational AI agents. It orchestrates sp… | 89 | 14769 | active |
| crowdsecurity/crowdsec CrowdSec is an open-source, crowdsourced security engine that analyzes logs and HTTP requests to detect malicious behavior and block offend… | 89 | 14655 | stable |
| ktorio/ktor Ktor is an asynchronous web framework for Kotlin, built by JetBrains on top of coroutines, for creating servers, microservices, and multipl… | 98 | 14504 | stable |
| logto-io/logto Logto is an open-source identity and access management (IAM) infrastructure for SaaS and AI applications, built on OIDC, OAuth 2.1, and SAM… | 98 | 14468 | active |
| ABP Framework ABP Framework is an open-source, opinionated application framework for building enterprise web applications on .NET and ASP.NET Core. It pr… | 98 | 14417 | active |
| yiisoft/yii2 Yii 2 is a high-performance, full-stack PHP framework for building modern web applications and APIs. It ships with an ORM (Active Record), … | 85 | 14299 | stable |
| coredns/coredns CoreDNS is a fast and flexible DNS server and forwarder written in Go that chains plugins, each performing a DNS function. It is a CNCF gra… | 95 | 14280 | stable |
| drogonframework/drogon Drogon is a C++14/17/20-based HTTP web application framework for building high-performance web application servers. It uses non-blocking I/… | 89 | 14217 | active |
| arut/nginx-rtmp-module An NGINX module that turns the nginx web server into a media streaming server supporting RTMP, HLS, and MPEG-DASH. It handles live streamin… | 32 | 14035 | stable |
| OpenResty OpenResty is a full-fledged web platform that bundles an enhanced Nginx core, LuaJIT, and many Nginx modules and Lua libraries into a singl… | 82 | 14012 | stable |
| apollographql/apollo-server Apollo Server is a spec-compliant, production-ready GraphQL server library for Node.js that supports schema-first development. It integrate… | 93 | 13947 | stable |
| RabbitMQ RabbitMQ is an open source, multi-protocol messaging and streaming broker supporting AMQP 0-9-1, AMQP 1.0, MQTT, STOMP, and its Streams pro… | 99 | 13807 | stable |
| LibreSpark/LibreTV LibreTV is a lightweight, free, self-hostable web application for searching and streaming video content aggregated from multiple third-part… | 10 | 13796 | active |
| freshframework/fresh Fresh is a full-stack web framework for Deno that renders server-generated HTML with Preact and ships JavaScript only for interactive 'isla… | 91 | 13786 | active |
| 567-labs/instructor Instructor is a Python library that patches LLM clients to return validated, type-safe structured data using Pydantic models, with automati… | 92 | 13782 | stable |
| alibaba/tengine Tengine is a high-performance web server and reverse proxy forked from nginx, developed by Taobao/Alibaba since 2011. It is 100% nginx-comp… | 86 | 13338 | active |
| gogf/gf GoFrame is a modular, high-performance full-stack development framework for Go, comparable to Laravel or Spring Boot, offering batteries-in… | 99 | 13249 | active |
| rmyndharis/OpenWA OpenWA is a free, MIT-licensed, self-hosted WhatsApp API Gateway that wraps WhatsApp connections in a REST API with webhooks, a React dashb… | 78 | 13227 | active |
| heroiclabs/nakama Nakama is a scalable open-source game backend server written in Go that provides multiplayer sessions, matchmaking, leaderboards, chat, and… | 97 | 13219 | stable |
| Debezium Debezium is an open source distributed platform for change data capture (CDC) that streams row-level database changes as events, most commo… | 77 | 13049 | stable |
| cesanta/mongoose Mongoose is a two-file C networking library and embedded web server providing HTTP, WebSocket, MQTT, TLS 1.3, and an optional built-in TCP/… | 94 | 13009 | stable |
| graphile/crystal Graphile's Crystal monorepo containing Grafast, a planning and execution engine for GraphQL.js, and PostGraphile, which auto-generates high… | 94 | 12929 | active |
| cloudwego/eino Eino is a Go-based framework for building LLM and AI applications, inspired by LangChain and LlamaIndex but following Go conventions. It pr… | 84 | 12831 | active |
| go-admin go-admin is a front-end/back-end separated admin management system scaffold built on Gin (Go) and Vue 3 with Element UI, Arco Design, and A… | 88 | 12751 | active |
| Play Framework Play Framework is a high-velocity, reactive web framework for Java and Scala running on the JVM. It offers a stateless, non-blocking archit… | 94 | 12621 | active |
| Kludex/starlette Starlette is a lightweight, production-ready ASGI framework and toolkit for building async web services in Python. It provides HTTP and Web… | 98 | 12571 | stable |
| sinatra/sinatra Sinatra is a Ruby DSL for quickly creating web applications with minimal effort, built on Rack. It provides routing, filters, sessions, and… | 74 | 12452 | stable |
| grpc/grpc-rust Tonic is a Rust implementation of gRPC over HTTP/2, providing async/await client and server support built on hyper and tokio, with prost-ba… | 94 | 12449 | stable |
| boardgameio/boardgame.io boardgame.io is an open-source JavaScript/TypeScript engine for building turn-based games. Developers write simple move functions and the f… | 76 | 12412 | stable |
| erlang/otp Erlang/OTP is the Erlang programming language together with its runtime system (BEAM) and the Open Telecom Platform, a set of libraries and… | 94 | 12333 | stable |
| Slim Framework Slim is a PHP micro-framework for quickly writing simple yet powerful web applications and APIs. It provides a fast HTTP router, concentric… | 90 | 12279 | active |
| keephq/keep Keep is an open-source AIOps and alert management platform that consolidates alerts from 90+ monitoring tools into a single pane of glass w… | 92 | 12253 | active |
| lidge-jun/opencodex opencodex is a lightweight local proxy (installed via npm, running on a bundled Bun runtime) that translates OpenAI Codex's Responses API a… | 76 | 12224 | active |
| Autoware Autoware is the world's leading open-source, production-ready software stack for autonomous driving, built on ROS 2 and hosted by the Autow… | 93 | 12016 | stable |
| tadata-org/fastapi_mcp FastAPI-MCP is a Python library that automatically exposes FastAPI endpoints as Model Context Protocol (MCP) tools, preserving request/resp… | 45 | 11988 | active |
| NangoHQ/nango Nango is an open-source integration platform for building product integrations with 900+ pre-built API providers. It handles OAuth/API-key … | 94 | 11610 | active |
| eclipse-mosquitto/mosquitto Eclipse Mosquitto is an open source MQTT message broker implementing MQTT versions 5.0, 3.1.1, and 3.1, written in C and suitable for devic… | 77 | 11158 | stable |
| nitrojs/nitro Nitro is a TypeScript server toolkit that extends Vite apps with a production-ready server featuring file-based routing, caching, KV storag… | 95 | 11148 | active |
| dexidp/dex Dex is a federated OpenID Connect (OIDC) and OAuth 2.0 identity provider that issues signed ID tokens (JWTs) for applications. It acts as a… | 86 | 11062 | stable |
| aws/chalice AWS Chalice is a Python serverless microframework for building and deploying applications on AWS Lambda. It provides a CLI for scaffolding … | 76 | 11061 | stable |
| vuestorefront/vue-storefront Alokai (formerly Vue Storefront) is a Frontend-as-a-Service ecosystem for building fast, scalable, headless eCommerce storefronts on Vue/Nu… | 73 | 10941 | active |
| dotnet/orleans Microsoft Orleans is a cross-platform .NET framework for building robust, scalable distributed applications using the Virtual Actor Model. … | 97 | 10844 | stable |
| Phalcon Phalcon is a full-stack PHP web framework delivered as a compiled C extension (written in Zephir/C), exposing its functionality as PHP clas… | 99 | 10829 | active |
| TykTechnologies/tyk Tyk Gateway is a cloud-native, open-source API Gateway written in Go that supports REST, GraphQL, TCP, and gRPC protocols. It provides rate… | 97 | 10805 | stable |
| Centrifugo Centrifugo is an open-source, language-agnostic real-time messaging (PUB/SUB) server written in Go that delivers messages to online users o… | 99 | 10668 | stable |
| corsairdev/corsair Corsair is an open-source TypeScript integration layer that lets applications and AI agents connect to 200+ third-party services (GitHub, S… | 59 | 10554 | active |
| evershopcommerce/evershop EverShop is an open-source, TypeScript-first e-commerce platform built with Node.js, React, and GraphQL, featuring a modular architecture w… | 90 | 10424 | active |