domain: backend
4128 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| KunMoe/kun-galgame-forum KUN Visual Novel Forum is a full-stack, self-hostable community forum for visual novel and Galgame enthusiasts, built as a pnpm monorepo wi… | 72 | 1919 | active |
| zitadel/oidc A Go library implementing both the OpenID Connect client (Relying Party) and server (OpenID Provider) sides of the OIDC/OAuth2 standards, c… | 100 | 1881 | active |
| jiujiu532/grok2api A self-hosted Python/FastAPI gateway that exposes grok.com and console.x.ai chat, image, and video capabilities through OpenAI- and Anthrop… | 54 | 1879 | active |
| essensoft/paylinks Paylinks is a modern .NET SDK for integrating third-party payment platforms, supporting Alipay and WeChat Pay with cross-platform and multi… | 64 | 1878 | active |
| dashpresshq/dashpress DashPress is a no-code admin app generator that turns your database schema into a customizable admin dashboard with zero code, launched via… | 32 | 1874 | active |
| chatgpt-web-dev/chatgpt-web A self-hosted third-party ChatGPT web UI built with Express (Node.js backend) and Vue3 (frontend), calling the official OpenAI completion A… | 74 | 1870 | active |
| Eugeny/russh Russh is a low-level, Tokio-based SSH2 client and server library for Rust, forked from Thrussh. It supports a wide range of ciphers, key ex… | 99 | 1855 | active |
| ever-co/ever-demand Ever Demand is an open-source, real-time on-demand commerce platform for building single-store shops, multi-vendor marketplaces, and on-dem… | 66 | 1848 | active |
| firekylin/firekylin Firekylin is a self-hosted blogging platform built on Node.js with ThinkJS 3 and ReactJS. It provides article and page management, themes, … | 99 | 1833 | active |
| guchengwuyue/yshop-crm YSHOP-CRM is a self-hosted, multi-tenant CRM sales management system with WeCom (Enterprise WeChat) SCRM integration, built as a Spring Boo… | 77 | 1833 | active |
| metacall/core MetaCall is an extensible, embeddable polyglot runtime that lets you call functions, methods, or procedures across multiple programming lan… | 98 | 1816 | active |
| APIParkLab/APIPark APIPark is an open-source, cloud-native AI gateway and API developer portal for managing, integrating, and deploying AI and REST APIs. It u… | 65 | 1808 | active |
| SunoAI-API/Suno-API An unofficial Python/FastAPI-based API wrapper for Suno AI that lets you generate songs and lyrics programmatically. It includes automatic … | 32 | 1807 | active |
| nccgroup/sobelow Sobelow is a security-focused static analysis tool for Elixir and the Phoenix framework, detecting common vulnerability classes like SQL in… | 23 | 1791 | active |
| etesync/server The Etebase (EteSync 2.0) server, a Django-based backend that lets you self-host end-to-end encrypted synchronization of contacts, calendar… | 32 | 1768 | stable |
| ronf/asyncssh AsyncSSH is a Python library providing asynchronous client and server implementations of the SSHv2 protocol, including SFTP and SCP, built … | 77 | 1756 | stable |
| mercurjs/mercur Mercur is an open-source, headless multi-vendor marketplace platform built on top of the Medusa commerce engine. It provides vendor onboard… | 92 | 1750 | active |
| aklivity/zilla Zilla is a stateless, multi-protocol gateway for event-driven applications and AI agents, exposing Kafka and MQTT over HTTP, SSE, gRPC, MQT… | 99 | 1731 | active |
| tus/tus-resumable-upload-protocol The tus resumable upload protocol is an open HTTP-based protocol specification for reliable, resumable file uploads that can be interrupted… | 61 | 1726 | stable |
| wyeeeee/hajimi Hajimi is a FastAPI-based proxy for Google's Gemini API that exposes OpenAI-compatible endpoints like /v1/chat/completions. It provides API… | 10 | 1724 | active |
| NeteaseCloudMusicApiEnhanced/api-enhanced A Node.js API service providing comprehensive access to NetEase Cloud Music (网易云音乐) endpoints, a half-refactored and enhanced fork of the p… | 85 | 1719 | active |
| timothymiller/t4-app T4 App (create-t4-app) is a full-stack meta-framework and interactive CLI for building universal iOS, Android, and Progressive Web Apps usi… | 30 | 1719 | active |
| flowglad/flowglad Flowglad is an open-source payments and billing SDK for SaaS applications, built around a 'zero webhooks' stateless model where customer bi… | 68 | 1718 | active |
| icebear0828/codex-proxy A lightweight local proxy service that exposes ChatGPT Codex Desktop's Responses API through standard OpenAI, Anthropic, Gemini, and Ollama… | 83 | 1714 | active |
| cedar-policy/cedar Cedar is a purpose-built policy language and Rust implementation for writing and enforcing fine-grained authorization policies in applicati… | 95 | 1705 | stable |
| raodv/captcha AjPlus Captcha is an open-source behavioral CAPTCHA library providing sliding puzzle and click-word verification challenges with frontend U… | 39 | 1689 | active |
| FOSSBilling/FOSSBilling FOSSBilling is a free, open-source billing and client management application for hosting providers and digital service businesses, built in… | 100 | 1686 | active |
| apache/solr Apache Solr is a fast, open-source, multi-modal search platform built on Apache Lucene, providing full-text, vector, and geospatial search … | 77 | 1673 | stable |
| itteco/iframely Iframely is a self-hosted oEmbed proxy and URL metadata service that takes any URL and returns rich media embed codes and page metadata. It… | 68 | 1649 | active |
| liaochong/myexcel MyExcel is a Java toolkit for importing, exporting, and encrypting Excel files (.xls, .xlsx, .csv) built on top of Apache POI. It uses HTML… | 23 | 1649 | active |
| angular-fullstack/generator-angular-fullstack A Yeoman generator that scaffolds full-stack MEAN/SEAN web applications using Angular, Express, Node, and MongoDB or SQL (via Sequelize). I… | 10 | 6090 | maintenance |
| AgentEra/Agently Agently is a Python framework for building production-grade GenAI applications with structured outputs, observable actions, MCP/tool integr… | 95 | 1646 | active |
| SendGrid Official Twilio SendGrid API client libraries for sending email and calling the SendGrid Web API v3, maintained as multi-language monorepos… | 76 | 1630 | active |
| arethetypeswrong/arethetypeswrong.github.io A tool that analyzes npm package contents for issues with their TypeScript types, particularly ESM-related module resolution problems acros… | 90 | 1598 | active |
| atinux/nuxt-auth-utils A Nuxt module that adds authentication to Nuxt applications using secured and sealed cookie sessions. It supports 40+ OAuth providers, pass… | 91 | 1591 | active |
| joyieldInc/predixy Predixy is a high-performance, lightweight proxy for Redis that supports both Redis Sentinel and Redis Cluster backends. Written in C++ wit… | 23 | 1586 | stable |
| keygen-sh/keygen-api Keygen is a fair source software licensing and distribution API that lets developers add license key validation, entitlements, device activ… | 87 | 1577 | active |
| callbag/callbag Callbag is a lightweight specification/standard for JavaScript callbacks that enables minimal-overhead observables, iterables, and async it… | 32 | 1575 | stable |
| kyma-project/kyma Kyma is an opinionated set of Kubernetes-based modular building blocks for developing and running enterprise-grade cloud-native application… | 67 | 1558 | active |
| samwafgo/SamWaf SamWaf is a lightweight, open-source web application firewall (WAF) written in Go, designed for small companies, studios, and personal webs… | 90 | 1554 | active |
| LaravelDaily/laravel-invoices A Laravel PHP package for generating PDF invoice files from customizable parameters like items, taxes, discounts, and shipping. Invoices ca… | 67 | 1553 | active |
| ssoready/ssoready SSOReady is an open-source service and set of SDKs for adding enterprise SAML single sign-on and SCIM directory sync to any product. It exp… | 42 | 1535 | active |
| haydenbleasel/files-sdk Files SDK is a unified TypeScript storage SDK that provides one small API (ten methods) across 40+ object and blob storage providers includ… | 81 | 1525 | active |
| VKCOM/kphp KPHP is a PHP compiler developed at VK.com that compiles a limited subset of PHP to C++ and then to a native binary running faster than pla… | 77 | 1525 | active |
| golemcloud/golem Golem is an open-source durable agent runtime and serverless platform for running WebAssembly components in a distributed cloud environment… | 90 | 1510 | active |
| edmund-io/edmunds-claude-code A Claude Code plugin providing 14 slash commands and 11 specialized AI agents for web development workflows. It scaffolds APIs, React compo… | 38 | 1502 | active |
| shridarpatil/whatomate Whatomate is an open-source, self-hosted WhatsApp Business platform shipped as a single Go binary with Docker support. It provides multi-te… | 70 | 1499 | active |
| igorkasyanchuk/rails_db A Ruby gem that adds a web-based database viewer and SQL query runner to Rails applications at /rails/db. It lets developers inspect table … | 71 | 1495 | active |
| ivov/lisette Lisette is a small programming language inspired by Rust that compiles to readable Go, featuring Hindley-Milner type inference, algebraic d… | 78 | 1491 | active |
| cossacklabs/acra Acra is a database security suite that provides field-level encryption, searchable encryption, tokenization, data masking, SQL firewalling,… | 58 | 1491 | active |
| securitybunker/databunker Databunker is a self-hosted, Go-based secure vault for tokenizing and storing personal records such as PII, PHI, KYC, and PCI data. It expo… | 75 | 1484 | active |
| fictionco/fiction Fiction is a next-generation CMS and application framework for building AI-generated content, personal websites, marketing funnels, and new… | 44 | 1467 | active |
| zhtyyx/ioe IOE is a self-hosted Django web application for retail inventory management, covering product catalogs, stock movements, sales checkout, an… | 60 | 1461 | active |
| CoreUnion/CoreShop CoreShop is an open-source e-commerce mall system built on ASP.NET Core 9.0 and Uni-App, featuring a visual page layout designer and full f… | 57 | 1430 | active |
| kamon-io/Kamon Kamon Telemetry is a set of open-source libraries for instrumenting JVM applications (Java, Scala, Kotlin) to collect metrics, distributed … | 84 | 1426 | active |
| googleapis/google-cloud-ruby The official Google Cloud Client Library for Ruby, a monorepo of idiomatic RubyGems for calling Google Cloud Platform APIs such as Cloud St… | 96 | 1425 | stable |
| 2227324689/gpmall Gpmall is an e-commerce mall application built with SpringBoot and Dubbo microservices, developed as a hands-on practice project for the Gu… | 32 | 5063 | maintenance |
| dedemao/alipay A collection of standalone single-file PHP scripts (~200 lines each) for integrating Alipay payments, covering PC and mobile web payments, … | 48 | 1391 | active |
| JoshuaKGoldberg/create-typescript-app A quickstart-friendly TypeScript project template and CLI scaffolding tool that sets up new or existing repositories with comprehensive, op… | 95 | 1390 | active |
| overtrue/socialite A framework-agnostic PHP OAuth2 authentication library inspired by laravel/socialite, supporting 20+ providers including GitHub, Google, Fa… | 95 | 1373 | active |
| wimoor-erp/wimoor Wimoor ERP is a 100% open-source, MIT-licensed Amazon seller ERP system built with Java microservices (Spring Boot, Spring Cloud, Nacos, Se… | 77 | 1371 | active |
| VanOns/laraberg Laraberg is a Laravel package that integrates the WordPress Gutenberg block editor into Laravel applications. It handles the communication … | 23 | 1371 | active |
| enatega/food-delivery-multivendor Enatega is a fully customizable, open-source multi-vendor delivery management system for launching food, grocery, courier, and home-service… | 97 | 1367 | active |
| arterli/CmsWing CmsWing is a CMS and e-commerce website builder built on the Egg.js framework with Sequelize ORM and integrated GraphQL API generation. It … | 23 | 1353 | active |
| infinispan/infinispan Infinispan is an open-source, distributed in-memory key/value data grid and NoSQL cloud data store written in Java. It supports embedded an… | 96 | 1348 | stable |
| webdevcody/wdc-saas-starter-kit A GitHub template repository providing a Next.js SaaS starter kit with authentication, Stripe subscription billing, Drizzle ORM with Postgr… | 48 | 1347 | active |
| Eric-Guo/wechat A Ruby gem providing WeChat Official Account and Mini Program API integration for Rails applications, including message sending/receiving, … | 86 | 1346 | active |
| timostamm/protobuf-ts A pure TypeScript Protocol Buffers implementation with a protoc code-generation plugin and RPC client/server support. It generates typed me… | 76 | 1343 | active |
| fzlee/alipay An unofficial Python SDK for Alipay (支付宝) that supports SHA1 and SHA256 with RSA request signing and verification. It provides client and s… | 64 | 1340 | active |
| subsquid/squid-sdk Squid SDK is a TypeScript ETL toolkit for building blockchain data indexers, supporting Ethereum-like chains, Substrate, and Solana, with d… | 100 | 1336 | active |
| basementstudio/xmcp xmcp is a TypeScript framework for building and deploying MCP (Model Context Protocol) servers, with file-system-based auto-discovery of to… | 83 | 1325 | active |
| yukkcat/gemini-business2api A self-hosted gateway service that exposes Gemini Business through an OpenAI-compatible API, with multi-account load balancing and an admin… | 57 | 1324 | active |
| cedar2025/Xboard Xboard is a high-performance self-hosted proxy/VPN panel forked from V2board, built on Laravel with Octane, a React admin panel, and a Vue3… | 71 | 4693 | maintenance |
| Khan/genqlient genqlient is a Go library and code generator that produces type-safe client code for GraphQL APIs. It validates queries against the schema … | 70 | 1320 | active |
| umputun/reproxy Reproxy is a simple edge HTTP(s) server and reverse proxy written in Go, distributed as a single binary or Docker container. It supports mu… | 94 | 1310 | active |
| Shopify/maintenance_tasks A Rails engine for queuing, running, and managing one-off data migrations (maintenance tasks) such as backfills. It provides a web UI to st… | 91 | 1306 | stable |
| nodecg/nodecg NodeCG is a broadcast graphics framework and application that lets you build dynamic, real-time on-air graphics using standard web technolo… | 92 | 1303 | active |
| pahaz/sshtunnel A pure Python library for creating SSH tunnels and TCP port forwarding through remote servers, built on paramiko. It lets applications prog… | 40 | 1297 | stable |
| contentful/contentful.js The official JavaScript/TypeScript SDK for Contentful's Content Delivery and Preview APIs, letting applications fetch structured content fr… | 94 | 1296 | stable |
| laravel/vat-calculator A PHP library for calculating EU VAT rates and handling MOSS tax regulations, with optional Laravel and Cashier integration. It supports gr… | 86 | 1286 | active |
| postlight/headless-wp-starter A starter kit from Postlight that spins up a headless WordPress backend exposing data via the WP REST API and GraphQL, alongside sample Rea… | 23 | 4546 | maintenance |
| yym68686/uni-api uni-api is a self-hosted Python service that unifies management of multiple LLM provider APIs behind a single OpenAI-compatible endpoint. I… | 87 | 1258 | active |
| postfixadmin/postfixadmin PostfixAdmin is an open-source, web-based administration interface for managing domains, mailboxes, and aliases on Postfix-based mail serve… | 97 | 1253 | active |
| Nerzal/gocloak gocloak is a Go client library for the Keycloak Admin and authentication APIs. It lets Go applications log in users and admins, manage user… | 95 | 1251 | active |
| dovecot/core Dovecot is an open-source mail server for Linux/UNIX-like systems written in C, providing IMAP, POP3, LMTP, and ManageSieve protocols with … | 91 | 1249 | stable |
| lnbits/lnbits LNbits is a free, open-source Python server that provides Bitcoin Lightning Network wallet and account management on top of any Lightning f… | 95 | 1234 | stable |
| gowebly/gowebly Gowebly is a next-generation CLI tool for scaffolding full-stack web applications with a Go backend and htmx, hyperscript, or Alpine.js fro… | 78 | 1228 | active |
| alibaba/PhotonLibOS PhotonLibOS is a high-performance C++ library providing a stackful coroutine runtime with a symmetric scheduler and non-blocking IO engines… | 95 | 1225 | active |
| marmelab/atomic-crm Atomic CRM is a free, open-source, full-featured customer relationship management application built with React, shadcn/ui, and Supabase. It… | 82 | 1222 | active |
| marshmallow-code/apispec A pluggable Python library that generates OpenAPI (Swagger) specifications, supporting OpenAPI versions 2 and 3. It is framework-agnostic w… | 77 | 1219 | active |
| nokonoko/Uguu Uguu is a lightweight, self-hosted temporary file hosting platform written in PHP, supporting drag-and-drop, paste, click, and API uploads.… | 65 | 1209 | active |
| Netflix/dynomite Dynomite is a thin distributed Dynamo layer that adds sharding, multi-datacenter replication, and high availability to storage engines like… | 23 | 4215 | maintenance |
| ridhwaans/homehost Homehost is a self-hosted, Netflix-like web application for streaming your personal media collection (movies, TV shows, and music) within a… | 62 | 1203 | active |
| tpope/vim-rails rails.vim is a Vim plugin providing Rails-specific navigation, syntax highlighting, and command wrappers for editing Ruby on Rails applicat… | 35 | 4151 | maintenance |
| polterguy/magic Magic Cloud is a self-hosted, MIT-licensed AI app builder platform that turns plain-English prompts into full-stack applications — database… | 96 | 1188 | 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… | 74 | 1187 | active |
| valtyr/prisma-kysely A Prisma generator plugin that produces fully typed Kysely database types directly from your Prisma schema. It lets you keep Prisma's migra… | 97 | 1186 | active |
| wa8n/wblog wblog is a self-hosted personal blog application written in Go, built on the Gin web framework and GORM ORM with SQLite or MySQL storage. I… | 73 | 1186 | stable |
| alexusmai/laravel-file-manager A file manager package for Laravel with a Vue.js frontend, built on Laravel Flysystem to support local, S3, FTP, and Dropbox disks. It prov… | 59 | 1186 | active |
| plabayo/rama Rama is a modular service framework for Rust for building network clients, servers, proxies, and traffic inspection tools from composable s… | 88 | 1185 | active |