domain: backend
4128 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| jshttp/mime-types A Node.js JavaScript utility library that looks up MIME content-types from file extensions or paths and constructs full Content-Type header… | 70 | 1473 | stable |
| mosquito/aio-pika aio-pika is an asynchronous Python client library for RabbitMQ built on top of aiormq, providing an object-oriented asyncio API for AMQP 0.… | 93 | 1472 | stable |
| wneessen/go-mail go-mail is a modern, feature-rich Go library for composing and sending email over SMTP. It provides mail composition, encoding, DKIM and S/… | 96 | 1471 | active |
| gleam-wisp/wisp Wisp is a practical, type-safe web framework for the Gleam language, built on the Mist HTTP server and the BEAM runtime. It is structured a… | 79 | 1471 | active |
| jsforce/jsforce JSforce is an isomorphic JavaScript/TypeScript library that wraps Salesforce APIs (REST, Bulk, Metadata, SOAP, Streaming, Tooling, and more… | 99 | 1470 | active |
| 1095071913/maozi-cloud maozi-cloud is an open-source scaffold built on Spring Cloud Alibaba and Dubbo that packages a full suite of distributed application compon… | 89 | 1470 | active |
| litespeedtech/openlitespeed OpenLiteSpeed is a high-performance, lightweight, open source HTTP web server developed by LiteSpeed Technologies under GPLv3. It uses an e… | 89 | 1470 | active |
| ankitpokhrel/tus-php TusPHP is a pure PHP implementation of both a server and a client for the tus resumable upload protocol v1.0.0. It enables reliable uploads… | 65 | 1470 | active |
| jeremydaly/lambda-api Lambda API is a lightweight Express.js-style web framework for Node.js designed specifically for AWS Lambda with API Gateway proxy integrat… | 95 | 1469 | active |
| softwaremill/tapir Tapir is a Scala library for describing HTTP APIs declaratively with type-safe endpoint definitions. Endpoints can be exposed as servers, c… | 94 | 1469 | active |
| jhipster/jhipster-sample-app A sample full-stack application generated by JHipster, combining a Java Spring Boot backend with an Angular TypeScript frontend. It serves … | 73 | 1468 | active |
| closeio/tasktiger TaskTiger is a Python task queue library backed by Redis, supporting per-task subprocess forking, unique queues, task locking, and flexible… | 67 | 1467 | active |
| GeorgeKaraszi/ActiveRecordExtended A Ruby gem that extends ActiveRecord with additional PostgreSQL-specific query capabilities such as array predicates, inet/IP matching, CTE… | 80 | 1466 | active |
| laochiangx/Common.Utility A large collection of C# utility and helper classes covering common .NET development tasks such as Excel/CSV/PDF handling, HTTP requests, J… | 32 | 5307 | maintenance |
| pg-sharding/spqr SPQR (Stateless Postgres Query Router) is a production-ready proxy that horizontally scales PostgreSQL via sharding by routing queries to t… | 92 | 1465 | active |
| vercel-community/php vercel-php is a community-maintained PHP runtime for Vercel serverless functions, supporting PHP 7.4 through 8.5. It lets developers deploy… | 68 | 1465 | active |
| Sorcery/sorcery Sorcery is a stripped-down authentication library for Ruby on Rails supporting ActiveRecord, Mongoid, and other ORMs. It provides core auth… | 71 | 1464 | active |
| icebob/fastest-validator A schema-based data validation library for JavaScript with 24 built-in validators, sanitization, and custom validator support. It compiles … | 67 | 1463 | stable |
| cnodejs/egg-cnode The open-source codebase powering the CNode Chinese Node.js community forum, built on the Egg.js web framework with MongoDB and Redis. It i… | 57 | 1458 | active |
| fecshop/yii2_fecshop Fecshop (renamed FecMall) is a fully open-source B2C e-commerce system built on the PHP Yii2 framework, supporting multiple languages, curr… | 23 | 5265 | maintenance |
| ludoguenet/laravel-zap Laravel Zap is a calendar and scheduling package for Laravel that lets any Eloquent model manage availabilities, appointments, blocked time… | 78 | 1456 | active |
| j-easy/easy-rules Easy Rules is a lightweight Java rules engine that provides a Rule abstraction with conditions and actions plus a RulesEngine API to evalua… | 23 | 5258 | maintenance |
| oldmoe/litestack Litestack is a Ruby gem that bundles SQLite-based data infrastructure for Ruby and Rails applications, providing a database, cache, job que… | 31 | 1453 | active |
| mit-pdos/noria Noria is a streaming data-flow storage backend written in Rust that acts like a database but precomputes and incrementally maintains materi… | 32 | 5244 | maintenance |
| beyondcode/laravel-self-diagnosis A Laravel package that runs self-diagnosis checks on your application via an artisan command. It verifies environment configuration, depend… | 68 | 1451 | active |
| standard-things/esm A zero-dependency ECMAScript module loader for Node.js that enables ESM syntax (import/export, import.meta, dynamic import) in Node 6+ with… | 10 | 5241 | maintenance |
| ff4j/ff4j FF4J is a Java library implementing the Feature Toggle pattern, letting teams enable and disable features at runtime without redeployments.… | 85 | 1449 | active |
| binarywang/weixin-java-miniapp-demo A Spring Boot demo application showcasing the WxJava library for building WeChat Mini Program backends in Java. It supports multiple mini p… | 61 | 1449 | active |
| passwordless-lib/fido2-net-lib A battle-tested .NET library implementing a FIDO2 server / WebAuthn relying party for passkey registration (attestation) and authentication… | 71 | 1448 | active |
| kafka-rust/kafka-rust A Rust client library for Apache Kafka providing producer and consumer APIs with offset management and TLS support via rustls. It is a crat… | 63 | 1448 | active |
| FirebirdSQL/firebird Firebird is an open-source relational database management system (RDBMS) offering many ANSI SQL standard features, running on Linux, Window… | 93 | 1446 | stable |
| tailcallhq/tailcall Tailcall is a high-performance GraphQL runtime written in Rust that lets you build GraphQL backends declaratively by annotating a GraphQL s… | 83 | 1443 | active |
| hynek/stamina stamina is an opinionated Python library for retrying failed operations with production-safe defaults like exponential backoff with jitter,… | 80 | 1442 | stable |
| peterbourgon/ff ff is a Go library providing a flags-first approach to program configuration, where every config parameter is defined as a flag that can be… | 58 | 1442 | active |
| Node Express Mongoose A demo blog application built with Node.js, Express, and Mongoose that illustrates everyday web development features and best practices for… | 32 | 1442 | active |
| Shopify/graphql-batch A query batching executor for the Ruby graphql gem that lets GraphQL resolvers batch database lookups via custom loader classes. Loaders re… | 68 | 1441 | stable |
| JoshData/python-email-validator A Python library that validates email address syntax and optionally checks domain deliverability via DNS. It normalizes addresses, supports… | 64 | 1439 | stable |
| rstudio/plumber Plumber is an R package that converts annotated R functions into RESTful web API endpoints using roxygen2-style comments. It handles routin… | 70 | 1438 | active |
| aio-libs/aiocache aiocache is an asyncio cache library for Python supporting multiple backends including memory, Redis, and Memcached. It provides a uniform … | 63 | 1438 | stable |
| AndrewIngram/django-extra-views django-extra-views is a Python library providing additional class-based generic views for Django, covering patterns like formsets, inline f… | 31 | 1436 | active |
| laruence/yar Yar is a lightweight, concurrent RPC framework implemented as a native PHP extension (written in C), supporting HTTP, HTTPS, and TCP transp… | 86 | 1435 | stable |
| pydantic/pydantic-settings pydantic-settings is a Python library for managing application settings and configuration using Pydantic models. It loads type-validated se… | 94 | 1433 | active |
| mongodb/mongo-ruby-driver The officially supported Ruby driver for MongoDB, distributed as the 'mongo' gem. It provides connectivity and CRUD operations against Mong… | 93 | 1431 | stable |
| tracewayapp/traceway Traceway is an OpenTelemetry-native, self-hostable observability platform that combines logs, traces, metrics, session replay, exceptions, … | 79 | 1431 | active |
| aio-libs/aiopg aiopg is a Python library for accessing PostgreSQL databases from asyncio applications, wrapping the asynchronous features of the Psycopg d… | 48 | 1431 | active |
| rogchap/wombat Wombat is a cross-platform desktop GUI client for gRPC, built with Go and Wails using a Svelte frontend. It parses proto definitions (or us… | 23 | 1431 | active |
| bootique/bootique Bootique is a minimally opinionated Java framework and launcher for building container-less runnable applications as collections of modules… | 76 | 1429 | active |
| pockethost/pockethost PocketHost is an open-source, multi-tenant hosting platform for PocketBase that can run hundreds or thousands of isolated PocketBase instan… | 76 | 1428 | active |
| apache/cassandra-python-driver The official Python client driver for Apache Cassandra (and DataStax Enterprise/Astra), communicating via Cassandra's binary protocol and C… | 74 | 1427 | stable |
| ruby-amqp/bunny Bunny is a mature, feature-complete Ruby client library for RabbitMQ implementing the AMQP 0-9-1 protocol. It lets Ruby applications publis… | 83 | 1425 | stable |
| rails-api/rails-api Rails::API is a slimmed-down subset of Rails tailored for building API-only applications that serve JSON without the full middleware stack … | 32 | 5129 | maintenance |
| codingjoe/django-health-check A pluggable health check library for Django applications that monitors the app and its connected services. It bundles checks for caches, da… | 99 | 1422 | active |
| dry-rb/dry-validation dry-validation is a Ruby library for data validation using type-safe schemas and composable rules. It supports input coercion, nested data,… | 70 | 1422 | active |
| expressjs/serve-static A Node.js middleware library for serving static files from a root directory, built on the send module and commonly used with Express. It ha… | 64 | 1422 | stable |
| elixir-mint/mint Mint is a functional, low-level HTTP client library for Elixir supporting HTTP/1.1 and HTTP/2. It uses a process-less architecture where co… | 76 | 1418 | active |
| benoitc/hackney hackney is an HTTP client library for Erlang supporting HTTP/1.1, HTTP/2, and experimental HTTP/3, with connection pooling, streaming, asyn… | 98 | 1417 | active |
| aesmail/kaffy Kaffy is an admin interface package for Phoenix (Elixir) applications, inspired by Django's admin app and Rails' ActiveAdmin. It generates … | 52 | 1417 | active |
| http-rs/tide Tide is a minimal and pragmatic async web application framework for Rust, built on async-std, that provides routing, middleware, cookies, s… | 23 | 5094 | maintenance |
| thejerf/suture Suture is a Go library implementing Erlang-style supervisor trees for managing and restarting failing goroutine-based services. It handles … | 74 | 1412 | stable |
| apache/rocketmq-client-go The official Apache RocketMQ client SDK written in pure Go, supporting publishing and consuming messages against RocketMQ brokers. It cover… | 60 | 1412 | active |
| SmileyChris/easy-thumbnails A Django application for generating and managing image thumbnails, supporting predefined aliases, template tags, and Python API usage. It s… | 60 | 1410 | active |
| rage-rb/rage Rage is an API-first Ruby web framework that combines Rails-compatible ergonomics with fiber-based concurrency, running web requests, WebSo… | 89 | 1409 | active |
| nackjicholson/aiosql aiosql is a Python library that lets you write SQL queries in plain .sql files and load them into your application as callable methods, a p… | 82 | 1409 | active |
| jpmonette/feed A TypeScript library for Node.js that generates RSS 2.0, Atom 1.0, and JSON Feed 1.0 syndication feeds. It provides a simple, strongly-type… | 89 | 1408 | stable |
| L-Blondy/up-fetch upfetch is an advanced fetch client builder for TypeScript that wraps the native fetch API with schema validation, automatic response parsi… | 88 | 1406 | active |
| neo4jrb/activegraph ActiveGraph (formerly Neo4j.rb) is an Active Model-compliant object-graph mapper (OGM) for the Neo4j graph database in Ruby. It provides Ac… | 87 | 1406 | active |
| marshmallow-code/webargs webargs is a Python library for declarative parsing and validation of HTTP request arguments (query, form, JSON, headers, files), built on … | 76 | 1406 | stable |
| koxudaxi/fastapi-code-generator A Python CLI tool that generates a FastAPI application, including Pydantic models and routers, from an OpenAPI document. It builds on datam… | 96 | 1405 | active |
| rsinger86/django-lifecycle A Python library providing a @hook decorator and LifecycleModel base class for declarative model lifecycle hooks in Django. It serves as a … | 86 | 1404 | active |
| rails/activeresource Active Resource is a Ruby library that maps model classes to remote REST web services, providing an object-relational-mapping-style wrapper… | 81 | 1404 | active |
| modxcms/revolution MODX Revolution is an open-source PHP content management system and application framework for building websites and web applications. It gi… | 77 | 1404 | active |
| Tencent/flare Flare is a modern C++20 backend service development framework from Tencent, widely used in production for Tencent Ads with tens of thousand… | 73 | 1404 | stable |
| nasirkhan/laravel-starter A CMS-like modular starter application built on Laravel 13.x and Livewire, providing authentication, role management, an admin backend, bac… | 97 | 1403 | active |
| GREsau/schemars Schemars is a Rust library that generates JSON Schema documents from Rust types via a JsonSchema trait and #[derive(JsonSchema)] macro. It … | 96 | 1403 | stable |
| KnpLabs/KnpMenuBundle KnpMenuBundle is a Symfony bundle that integrates the KnpMenu PHP library for building object-oriented, feature-rich navigation menus. It l… | 77 | 1403 | stable |
| teodevgroup/teo Teo is a high-performance, fully asynchronous ORM for Rust supporting MySQL, PostgreSQL, SQLite, and MongoDB. It offers ergonomic query API… | 62 | 1403 | active |
| CloudyKit/jet Jet is a fast, secure template engine for Go with a simple C-like syntax. It supports template inheritance, composition, auto-escaping, and… | 79 | 1402 | stable |
| jawj/zapatos Zapatos is a TypeScript library providing zero-abstraction, fully typed access to Postgres. It generates a TypeScript schema from your data… | 51 | 1402 | active |
| jlaffaye/ftp goftp is an FTP client library for Go providing dialing, login, file upload (Stor), and download (Retr) over the FTP protocol. It is a smal… | 98 | 1401 | stable |
| go-logr/logr logr is a minimal logging interface for Go that decouples applications and libraries from specific logging implementations. Libraries emit … | 85 | 1401 | stable |
| aio-libs/aiokafka aiokafka is an asyncio-based Python client library for Apache Kafka, providing AIOKafkaProducer and AIOKafkaConsumer high-level classes. It… | 80 | 1399 | active |
| danieleteti/delphimvcframework DelphiMVCFramework is a popular open-source MVC framework for building RESTful and JSON-RPC web APIs and web applications in Delphi/Object … | 76 | 1399 | stable |
| lithammer/shortuuid A Go library that generates concise, unambiguous, URL-safe UUIDs by encoding standard UUIDs to base57, removing look-alike characters. It s… | 99 | 1398 | stable |
| elixir-nebulex/nebulex Nebulex is an in-memory and distributed caching toolkit for Elixir that provides a cache abstraction layer similar to Ecto's database abstr… | 92 | 1398 | stable |
| FrigadeHQ/remote-storage remoteStorage is a lightweight (~1 kB) TypeScript library that mirrors the localStorage API but persists key-value data on a remote server,… | 17 | 1398 | active |
| qq362946/Fantasy Fantasy is a zero-reflection, high-performance C# game server framework designed for large-scale multiplayer online games, built on an ECS … | 94 | 1397 | active |
| rails/kredis Kredis is a Ruby library that wraps Redis data structures into higher-level, typed objects like counters, lists, sets, and scalars. It inte… | 48 | 1397 | active |
| cypriss/mutations A Ruby gem for composing business logic into command objects that sanitize, coerce, and validate input before executing. It provides a stru… | 60 | 1396 | stable |
| karlseguin/ccache CCache is a Go in-memory LRU cache library designed for high-concurrency workloads. It reduces lock contention via sharded buckets, a promo… | 59 | 1396 | stable |
| yii-starter-kit/yii2-starter-kit A full-featured Yii2 application template designed to bootstrap advanced PHP websites quickly. It ships with a ready-made admin backend bas… | 55 | 1396 | active |
| ovh/utask µTask is a lightweight automation engine that models business processes as declarative YAML templates and asynchronously executes graphs of… | 89 | 1395 | active |
| fukamachi/woo Woo is a fast, non-blocking HTTP server for Common Lisp built on top of libev, aiming to be among the fastest web servers in any language. … | 65 | 1394 | active |
| fhmq/hmq HMQ is a high-performance MQTT broker written in Go, supporting MQTT 3.1.1 with QoS 0/1, retained and will messages, WebSockets, and TLS. I… | 87 | 1391 | active |
| roncoo/roncoo-pay Roncoo-pay is an open-source internet payment system built in Java (Spring Boot) with independent account, user, payment access, transactio… | 32 | 4985 | maintenance |
| orientechnologies/orientdb OrientDB is an open-source multi-model NoSQL DBMS written in Java that combines graph, document, full-text, reactive, and geospatial models… | 97 | 4983 | maintenance |
| GoogleCloudPlatform/functions-framework-nodejs An open-source FaaS framework for Node.js, based on Express, for writing portable functions that run on Google Cloud Run functions, Cloud R… | 95 | 1387 | active |
| meysamhadeli/booking-microservices A practical .NET 10 booking microservices reference application demonstrating Vertical Slice Architecture, CQRS, DDD, and Event Sourcing wi… | 66 | 1387 | active |
| spring-cloud/spring-cloud-netflix Spring Cloud Netflix provides Spring Boot autoconfiguration and integrations for Netflix OSS components such as Eureka, Hystrix, Zuul, Ribb… | 95 | 4969 | maintenance |
| guregu/dynamo An expressive DynamoDB client library for Go built on the official AWS SDK v2. It provides a fluent, struct-tag-based API for putting, gett… | 74 | 1385 | stable |
| troyzhxu/bean-searcher Bean Searcher is a read-only ORM framework for Java focused on declarative complex list queries, where entities define search boundaries an… | 97 | 1384 | active |