Open-source middleware software
2362 open-source libraries, tools and applications tagged middleware, ranked by how closely middleware is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
2362 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| Apache APISIX A web-based dashboard for managing Apache APISIX, the open-source API gateway. It provides a frontend interface for operating APISIX routes… | 67 | 1212 | active |
| jookies/jasmin Jasmin is an open-source SMS gateway written in Python on top of the Twisted event-driven networking engine. It supports SMPP client/server… | 55 | 1211 | active |
| floating/frame Frame is a system-wide Web3 wallet platform for macOS, Windows, and Linux that exposes local JSON-RPC endpoints so any browser, CLI, or nat… | 35 | 1209 | active |
| roboticslibrary/rl A self-contained C++ library for rigid body kinematics and dynamics, motion planning, collision detection, and robot control. It includes h… | 26 | 1206 | stable |
| Mirth Connect Mirth Connect by NextGen Healthcare is an open-source healthcare integration engine that filters, transforms, extracts, and routes messages… | 66 | 1203 | active |
| andersao/l5-repository A Laravel package that implements the Repository pattern to abstract the database layer, providing base repositories, criteria, cache, vali… | 73 | 4196 | maintenance |
| Janusec/janusec Janusec Application Gateway is a Go-based application gateway providing secure access for web applications, including reverse proxy, WAF, C… | 77 | 1200 | active |
| beetlex-io/BeetleX BeetleX is a high-performance .NET socket communication library supporting TCP, TLS, HTTP, HTTPS, WebSocket, MQTT, RPC, and Redis protocols… | 23 | 1200 | active |
| Symfony Security The Symfony Security Component provides a complete authentication and authorization system for PHP web applications. It supports HTTP basic… | 10 | 1196 | stable |
| austin-weeks/miasma Miasma is a lightweight Rust web server that traps AI web scrapers in an endless pit of poisoned training data and self-referential links. … | 80 | 1194 | active |
| Lihuanghe/SMSGate SMSGate is a Java framework built on Netty 4 that implements the core of a unified SMS gateway supporting CMPP, SMPP 3.4, SGIP 1.2, and SMG… | 60 | 1190 | active |
| ldqk/Masuit.MyBlogs Masuit.MyBlogs is the source code of a high-performance personal blog/CMS system built with ASP.NET Core (.NET 9) MVC, Vue 3, Blazor Server… | 91 | 1189 | active |
| wind-c/comqtt Comqtt is a lightweight, high-performance MQTT broker written in Go supporting MQTT v3.0, v3.1.1, and v5.0. It can run as a standalone serv… | 87 | 1182 | active |
| unionj-cloud/go-doudou go-doudou is a lightweight Go microservice framework based on OpenAPI 3.0 (for REST) and Protobuf v3 (for gRPC), with a built-in code gener… | 66 | 1171 | active |
| laravel/jetstream Laravel Jetstream is an application scaffolding/starter kit for the Laravel framework that provides pre-built authentication, profile, team… | 88 | 4059 | maintenance |
| oblac/jodd Jodd is a collection of lightweight Java micro-frameworks and utility libraries with zero external dependencies, including a DI container (… | 23 | 4049 | maintenance |
| Quorinex/Kiro-Go A Go service that converts Kiro accounts into OpenAI- and Anthropic-compatible API endpoints, with multi-account pooling, round-robin load … | 55 | 1157 | active |
| zino-rs/zino Zino is a spec-driven, opinionated framework for building composable web and desktop applications in Rust, with modular crates for ORM, aut… | 83 | 1154 | active |
| somta/Juggle Juggle is a zero-code/low-code API orchestration and system integration platform for composing microservice interfaces into complex flows v… | 87 | 1150 | active |
| aws-samples/aws-serverless-ecommerce-platform A sample serverless backend implementation for an e-commerce website built on AWS services like Lambda, EventBridge, AppSync, and API Gatew… | 10 | 1146 | active |
| OpenNJet/OpenNJet OpenNJet is a high-performance, lightweight web application and proxy engine written in C, designed as a cloud-native service mesh data pla… | 57 | 1144 | active |
| RESTEasy RESTEasy is a Java framework implementing the Jakarta RESTful Web Services (JAX-RS) specification and the MicroProfile REST Client API for … | 97 | 1143 | stable |
| Seneca Seneca is a microservices toolkit for Node.js that lets you organize business logic as message-based commands selected by JSON pattern matc… | 63 | 3956 | maintenance |
| apiflask/apiflask APIFlask is a lightweight Python web API framework built on Flask that adds declarative input/output handling, automatic request validation… | 91 | 1138 | active |
| WordPress REST API The WordPress REST API, originally developed as the WP-API plugin and merged into WordPress core since version 4.7, exposes WordPress site … | 10 | 3918 | maintenance |
| awspring/spring-cloud-aws Spring Cloud AWS is a community-maintained Spring and Spring Boot integration project for AWS managed services such as S3, SQS, SNS, Dynamo… | 93 | 1123 | active |
| jhawthorn/vernier Vernier is a next-generation sampling profiler for Ruby 3.2.1+ that tracks time, allocations, multiple threads, GVL activity, GC pauses, an… | 91 | 1122 | active |
| DroneBridge DroneBridge for ESP32 is open-source firmware for ESP32 modules that provides a secure, transparent, bidirectional telemetry link between a… | 91 | 1120 | active |
| graphql-hive/SOFA SOFA (sofa-api) is a Node.js library that automatically generates a fully RESTful API from an existing GraphQL schema, turning queries, mut… | 75 | 1119 | active |
| yanzhenjie/AndServer AndServer is a web server and web framework for the Android platform, providing SpringMVC-style annotations for building HTTP APIs and stat… | 23 | 3858 | maintenance |
| D00Movenok/BounceBack BounceBack is a stealth reverse proxy with WAF-like filtering designed to hide red team C2 and phishing infrastructure from blue teams, san… | 68 | 1117 | active |
| briandilley/jsonrpc4j jsonrpc4j is a Java library for implementing JSON-RPC 2.0 servers and clients, using Jackson for JSON serialization. It supports HTTP, stre… | 43 | 1117 | stable |
| moneta-rb/moneta Moneta is a Ruby library providing a unified interface to many key/value stores, including NoSQL and document databases. It supports config… | 23 | 1114 | stable |
| Ape Volo Admin Ape-Volo-Admin is an enterprise-grade RBAC permission management and admin backend solution built on .NET 8, SqlSugar ORM, and Vue 3 with E… | 72 | 1107 | active |
| OpenTelemetry Python A collection of OpenTelemetry instrumentation libraries for Python, providing automatic and manual instrumentation for popular Python frame… | 98 | 1106 | active |
| outlaws-bai/Galaxy Galaxy is a Burp Suite extension that automatically decrypts and re-encrypts HTTP traffic whose payloads are encrypted, letting testers wor… | 83 | 1104 | active |
| adtac/commento Commento is a lightweight, privacy-focused comments platform written in Go that you embed in your website to let readers comment. It suppor… | 32 | 3778 | maintenance |
| Steeltoe Steeltoe is a collection of .NET libraries that add cloud-native microservices capabilities such as externalized configuration, service dis… | 88 | 1098 | active |
| nytimes/gizmo Gizmo is a Go microservice toolkit from The New York Times providing packages for building HTTP/JSON servers and pubsub daemons with standa… | 52 | 3772 | maintenance |
| Microsoft 365 Agents SDK The Microsoft 365 Agents SDK is a multichannel SDK for building full-stack, trusted agents deployable to Microsoft 365 Copilot, Teams, Copi… | 67 | 1089 | active |
| VoAPI/VoAPI VoAPI is a self-hosted AI large-model API aggregation and distribution gateway written in Go, deployed via Docker. It proxies requests to m… | 57 | 1088 | active |
| semihalev/sdns SDNS is a high-performance recursive DNS resolver server written in Go, with DNSSEC validation and a privacy-first design supporting DNS-ov… | 99 | 1086 | active |
| Venipa/ytmdesktop2 YTMDesktop2 is an unofficial Electron desktop client for YouTube Music with Last.fm scrobbling, Discord Rich Presence, tray view, synced ly… | 91 | 1086 | active |
| zalando-incubator/graphql-jit A TypeScript library that compiles GraphQL queries into optimized JavaScript functions using V8's JIT compilation, serving as a drop-in alt… | 95 | 1085 | active |
| fizzgate/fizz-gateway-node FizzGate is a Java-based cloud-native aggregation API gateway for microservice deployments, offering hot service orchestration, routing, au… | 60 | 1078 | active |
| denoland/clawpatrol Claw Patrol is a security firewall and proxy for AI agents, written in Go, that intercepts agent traffic at the wire level and gates each a… | 80 | 1076 | active |
| hoisie/web web.go is a lightweight web framework for Go inspired by Sinatra and web.py, offering regex-based URL routing, secure cookies, and fastcgi/… | 32 | 3685 | maintenance |
| Graphiti Graphiti is a Ruby framework for building JSON:API-compliant APIs on top of your models (typically ActiveRecord). It replaces hand-written … | 99 | 1070 | active |
| google/rejoiner A Java library from Google that generates a unified GraphQL schema from gRPC microservices and other Protobuf sources. It maps GraphQL quer… | 10 | 3655 | maintenance |
| drashland/drash Drash is a strongly typed, runtime-agnostic web framework for building structured HTTP services in JavaScript, built on Web Standards. It w… | 97 | 1065 | active |
| Pode Pode is a cross-platform, open-source web framework written in PowerShell for building REST APIs, web pages, and TCP/SMTP servers. It suppo… | 96 | 1063 | active |
| gavlyukovskiy/spring-boot-data-source-decorator A Spring Boot auto-configuration library that transparently wraps JDBC DataSources with decorators like P6Spy, datasource-proxy, and FlexyP… | 83 | 1063 | active |
| ESP-Hosted ESP-Hosted is an open-source solution that lets Espressif SoCs like the ESP32 act as wireless communication co-processors, adding Wi-Fi and… | 79 | 1061 | active |
| ali-bouali/book-social-network Book Social Network (BSN) is a full-stack social network application for exchanging and borrowing books among members. It combines a Spring… | 26 | 1059 | active |
| AWS IoT Device SDK for Embedded C AWS's official C SDK for connecting embedded devices to AWS IoT, composed of modular libraries like coreMQTT, coreHTTP, coreJSON, and coreP… | 54 | 1058 | active |
| eCAL eCAL is a high-performance, brokerless middleware for interprocess communication on a single machine or across a network, offering publish-… | 95 | 1055 | active |
| toss/suspensive Suspensive is a TypeScript library of declarative React components and hooks that fill gaps in React's Suspense and Error Boundary APIs, in… | 92 | 1055 | active |
| GraphQL Multipart Request Spec A terminating Apollo Link for Apollo Client that sends GraphQL multipart requests when variables contain files (FileList, File, or Blob), f… | 23 | 1053 | active |
| wyb10a10/cocos_creator_framework kxCreator is a foundational framework for the Cocos Creator game engine, written in TypeScript. It provides resource loading and pooling, U… | 68 | 1049 | active |
| vectr-ucla/direct_lidar_odometry Direct LiDAR Odometry (DLO) is a lightweight, computationally-efficient frontend LiDAR odometry package for consistent and accurate pose es… | 23 | 1049 | stable |
| abizovnuralem/go2_ros2_sdk An unofficial ROS2 SDK for the Unitree Go2 quadruped robot (AIR/PRO/EDU), connecting over WebRTC (Wi-Fi) or CycloneDDS (Ethernet). It provi… | 54 | 1048 | active |
| r3labs/sse A Go library providing both server and client implementations for Server-Sent Events (SSE). It includes a message scheduler with named stre… | 32 | 1047 | stable |
| dropseed/plain Plain is a Python web framework for building database-backed applications, originally forked from Django and redesigned around explicit, ty… | 75 | 1044 | active |
| franciscop/server server.js is a batteries-included Node.js web server framework that wraps Express-compatible middleware with sane defaults for routing, ses… | 65 | 3553 | maintenance |
| apple/servicetalk ServiceTalk is a JVM networking framework built on Netty that provides reactive, asynchronous HTTP, gRPC, and other protocol clients and se… | 94 | 1041 | active |
| python-hyper/h2 h2 is a pure-Python implementation of the HTTP/2 protocol stack that performs no I/O, making it embeddable in any program or framework. It … | 72 | 1041 | stable |
| uWSGI uWSGI is an application server container written in C for deploying and serving web applications, most commonly Python WSGI apps. It provid… | 49 | 3547 | maintenance |
| go-macaron/macaron Macaron is a high-productivity, modular web framework for Go, inspired by Martini, featuring a fast multi-tree router, dependency injection… | 49 | 3545 | maintenance |
| asternic/wuzapi WuzAPI is a self-hosted RESTful API service for WhatsApp built on the Whatsmeow multi-device library in Go. It exposes endpoints for sessio… | 93 | 1033 | active |
| Apache YuniKorn Apache YuniKorn Core is the core scheduling engine of a lightweight, universal resource scheduler for container orchestrators, primarily de… | 94 | 1032 | active |
| lammertb/libhttp LibHTTP is a multi-platform C/C++ embeddable HTTP and HTTPS server library, forked from the Mongoose/CivetWeb family with an MIT license. I… | 34 | 1032 | active |
| fedify-dev/fedify Fedify is a TypeScript framework for building federated server applications on the ActivityPub protocol, handling signatures, discovery, ac… | 89 | 1029 | active |
| daangn/stackflow Stackflow is a mobile-first stack navigator framework for JavaScript/TypeScript that brings native-like stack navigation UX (screen stackin… | 94 | 1027 | active |
| Go-Json-Rest Go-Json-Rest is a thin Go library on top of net/http for quickly building RESTful JSON APIs. It provides Trie-based routing, JSON request/r… | 23 | 3486 | maintenance |
| rmqtt/rmqtt RMQTT is a scalable, distributed MQTT message broker written entirely in safe Rust, supporting MQTT v3.1/v3.1.1/v5.0 with millions of concu… | 96 | 1017 | active |
| Meteor-Community-Packages/meteor-collection2 A Meteor package that extends Mongo.Collection to attach schemas and automatically validate inserts and updates from client or server code.… | 92 | 1016 | active |
| Embetty Embetty is a JavaScript library that embeds remote content such as tweets and YouTube videos into web pages without loading third-party tra… | 55 | 1016 | active |
| HFQR/xitca-web xitca-web is an async HTTP library and web framework written in 100% safe Rust, focused on memory efficiency, composability, and fast compi… | 77 | 1012 | active |
| dthree/vantage Vantage is a Node.js library that turns a live Node application into an interactive, remotely accessible CLI by combining CLI, SSH-like con… | 23 | 3412 | maintenance |
| roots/acorn Acorn is a framework that integrates Laravel components into WordPress projects, providing access to Illuminate packages like routing, cach… | 93 | 1005 | active |
| wfrest/wfrest wfrest is a fast, asynchronous C++ micro web framework for building REST APIs, built on top of the C++ Workflow parallel computing and asyn… | 73 | 1005 | active |
| flipt-io/reverst Reverst is a load-balanced reverse-tunnel server and Go client library built on QUIC and HTTP/3. It lets services behind restrictive networ… | 47 | 1005 | active |
| PSPDFKit-labs/bypass Bypass is an Elixir library for spinning up a lightweight mock HTTP server (a Plug) inside tests to return prebaked responses to client req… | 42 | 1001 | stable |
| sohaha/zlsgo zlsgo is a lightweight, modular Go standard-library-style toolkit offering web framework (znet), logging (zlog), HTTP client (zhttp), JSON … | 76 | 1000 | active |
| Manba Manba is a RESTful HTTP API gateway written in Go that serves as a unified API access layer for microservices. It provides traffic control,… | 23 | 3306 | maintenance |
| zaiyunduan123/springboot-seckill A high-concurrency flash-sale (seckill) system built with SpringBoot, MySQL, Redis, RabbitMQ, and Guava. It demonstrates caching, rate limi… | 32 | 3291 | maintenance |
| Tinder/Scarlet Scarlet is a Retrofit-inspired declarative WebSocket client library for Kotlin, Java, and Android. It lets you define WebSocket services vi… | 43 | 3256 | maintenance |
| zhou-you/RxEasyHttp RxEasyHttp is an Android networking library built on RxJava2 and Retrofit2 that wraps HTTP requests in a fluent, chainable API. It bundles … | 32 | 3147 | maintenance |
| lynckia/licode Licode is an open-source WebRTC communications platform for hosting your own videoconference provider, built around the C++ Erizo MCU, a No… | 68 | 3133 | maintenance |
| nickel-org/nickel.rs nickel.rs is a simple, lightweight web application framework for Rust inspired by Express.js. It provides flexible routing, middleware, JSO… | 32 | 3050 | maintenance |
| spark-jobserver/spark-jobserver Spark Job Server is a RESTful service for submitting, managing, and monitoring Apache Spark jobs, jars, and job contexts. It supports persi… | 51 | 2834 | maintenance |
| Chaplin Chaplin is an application architecture library for JavaScript single-page web applications built on top of Backbone.js. It adds structure o… | 10 | 2826 | maintenance |
| FIS3 FIS3 is a frontend engineering build system from Baidu's FEX team that handles compilation, performance optimization, resource loading, dep… | 23 | 2778 | maintenance |
| Meituan-Dianping/Zebra Zebra is Meituan-Dianping's JDBC-based database access layer middleware for MySQL, providing transparent read-write splitting and database/… | 32 | 2766 | maintenance |
| eidheim/Simple-Web-Server A simple, fast, multithreaded HTTP and HTTPS server and client library for C++11 built on Boost.Asio or standalone Asio. It is designed to … | 10 | 2691 | maintenance |
| klein/klein.php Klein.php is a fast and flexible routing library for PHP 5.3+, inspired by Sinatra. It provides regex-based routing with named parameters, … | 23 | 2657 | maintenance |
| tlaverdure/laravel-echo-server A Node.js/TypeScript Socket.io server that handles Laravel Echo broadcasting, including private and presence channel authentication. It is … | 10 | 2640 | maintenance |
| eduardoboucas/staticman Staticman is a Node.js web service that receives form submissions (user-generated content) from static websites and commits them as data fi… | 23 | 2450 | maintenance |
| Actionhero Actionhero is a Node.js/TypeScript API framework that serves the same actions over HTTP, HTTPS, and WebSockets, with built-in clustering, b… | 78 | 2413 | maintenance |
| Chimee Chimee is an extensible, component-based HTML5 video player framework for the browser, supporting mp4, m3u8 (HLS), and flv streams. It prov… | 23 | 2390 | maintenance |