Node.js

Offline search theme for Docusaurus v2 and v3 that indexes the docs and blog locally, with no external search service.

Command-line tool that sets up a local WordPress environment for building and testing plugins and themes, Docker-based by default, published from the Gutenberg monorepo.

TypeScript-first Node.js web framework for web apps and API servers, with ORM, validation, mail and queues in the core distribution.

JSON Schema and JSON Type Definition validator for Node.js and browsers that compiles schemas into validation functions.

Git-based headless CMS for Next.js that stores every entry as a JSON file in the project repository.

Full-stack meta-framework for building Angular applications and websites, with Vite builds and Nitro server integrations.

TypeScript-based web application framework with client-side, server-side and prerendered rendering.

Open-source GraphQL server for Node.js that runs as an add-on to new or existing Node.js apps, including Express, Fastify and AWS Lambda.

Web framework for content-driven websites that prerenders pages to static HTML and can render routes on demand.

PostCSS plugin that parses CSS and adds vendor prefixes to rules, using browser support data from Can I Use.

Test runner for Node.js with a concise API, detailed error output and concurrent test runs.

Promise-based HTTP client for the browser and Node.js.

JavaScript compiler that rewrites next-generation JavaScript into code that runs in the browsers and runtimes a project targets.

Visual regression testing tool that captures screenshots of a web app over time and compares them against approved references.

Build plugin that inlines a page's critical CSS and lazy-loads the rest of its stylesheets.

Bundler that lets browser code use Node.js-style require() calls to load npm modules into a single script.

Dashboard UI for Bull and BullMQ job queues, mounted into an existing Node server or run as a standalone CLI or Docker image.

JavaScript authorization library that defines what a given user may access, for browsers and Node.js.

Assertion library for Node.js and the browser that pairs with any JavaScript test framework.

JavaScript library that draws responsive charts as SVG, styled with CSS.

Validation library for TypeScript and JavaScript classes that checks object properties against rules declared with decorators.

End-to-end testing framework that writes tests as user actions and runs them through Playwright, WebDriver, Puppeteer or Appium.

Open source Node.js server that handles OAuth and streams files from remote sources such as Google Drive and Dropbox into uploads made with Uppy.

TypeScript implementation of Connect, a family of libraries for building type-safe APIs from Protocol Buffers schemas.

Self-hosted analytics and engagement server that collects data from web, mobile and desktop applications and shows it in dashboards.

Modular CSS minifier, built on the PostCSS ecosystem, that compresses stylesheets with a set of optimizations and presets.

End-to-end and component testing framework that runs tests in a real browser.

Component library for Tailwind CSS that adds named component classes and themes.

JavaScript library of functions for manipulating dates in browsers and on Node.js.

JavaScript library that parses, validates, manipulates and displays dates and times, with a largely Moment.js-compatible API.

Wrapper library for IndexedDB, the standard database in the browser, for offline-first web applications.

React-based static site generator for documentation websites and blogs written in Markdown and MDX.

DOM-based XSS sanitizer that cleans HTML, MathML and SVG markup in the browser or on Node.js.

JavaScript and TypeScript player for Lottie and dotLottie animations, built on a Rust and WebAssembly core.

Embedded headless CMS that runs inside a Nuxt or Next.js app, with a typed local API, a REST API and an admin at /admin.

Template engine for Node.js that renders markup from templates with JavaScript expressions, components and partials.

Templating language that generates HTML from plain JavaScript written inside templates, for Node.js and the browser.

Static site generator that transforms a directory of templates in various languages into HTML.

TypeScript web framework for building backend servers, optimized for Bun and also runnable on Node.js.

Full-stack TypeScript CMS built on Astro, with an admin panel, a REST API and a plugin system, that runs on Cloudflare or a Node.js server.

Backend framework for TypeScript and Go in which application code declares the infrastructure it uses, such as databases, Pub/Sub and cron jobs.

Pluggable linter for JavaScript that reports and fixes problems in source code through configurable rules and plugins.

Embedded JavaScript template engine written in TypeScript that renders templates in Node, Deno and the browser.

Open-source TypeScript e-commerce platform built on Node.js and PostgreSQL, with a GraphQL API and React storefront and admin.

File-based router for universal React Native apps that run on Android, iOS and the web, part of the open-source Expo platform.

Minimalist web framework for Node.js for building web applications and APIs.

TypeScript framework for building server-side Node.js applications, with dependency injection and an Express adapter.

JavaScript HTML5 canvas library for interactive objects, with SVG and JSON import and export.

JavaScript library that generates fake but realistic data for testing and development, in the browser and in Node.js.

Property-based testing framework for JavaScript and TypeScript that generates inputs to check properties of code.

JavaScript validation library that compiles an object schema into a checker function for Node.js, browsers and Deno.

Node.js web framework for building HTTP APIs and web applications, with a plugin architecture and schema-based validation.

Node.js module that generates favicons and their associated icon and web app manifest files from a source image.

Open-source feature flag and remote config platform, available self-hosted or as a cloud service, with SDKs for web, mobile and server-side apps.

JavaScript implementation of Project Fluent, a localization framework for translations with plurals, genders and grammatical cases.

A set of JavaScript libraries for internationalization built on ICU MessageFormat and the ECMA-402 Intl APIs.

Open-source experience management and survey platform, self-hosted or offered as a hosted cloud service.

Python and JavaScript low-code web framework for building data-driven web applications, with a built-in admin interface, roles and permissions.

React documentation framework that composes into an existing React framework to build docs sites.

Pure JavaScript lightbox that shows images, videos, iframes and inline content.

JavaScript and TypeScript library for creating interactive diagrams, charts and graphs in the browser or on Node.js.

Human-friendly HTTP request library for Node.js with promise and stream APIs, retries, timeouts and RFC 7234 caching.

Plugin-based command-line tool that generates typed code from a GraphQL schema and its operations.

Framework for composing REST, OpenAPI, gRPC, SOAP, database and GraphQL sources into a GraphQL federation supergraph.

A collection of npm packages for building, mocking and stitching GraphQL schemas and resolvers in JavaScript.

Fully-featured GraphQL server library for JavaScript that runs on the WHATWG Fetch API across Node.js and other JavaScript runtimes.

Zero-dependency GraphQL over WebSocket server and client library for JavaScript, with adapters for common WebSocket servers.

JavaScript implementation of the GraphQL specification, providing the parser, validator, executor and type system used to build GraphQL servers, clients and tools.

Open-core feature flagging, experimentation and product analytics platform, available self-hosted or as a cloud service, with SDKs for application code.

JavaScript toolkit that automates build and workflow tasks by composing single-purpose tasks and plugins into streaming pipelines defined in a gulpfile.

HTTP server framework for JavaScript runtimes, built on the Request, Response and Headers primitives of the web platform.

JavaScript templating engine that compiles Handlebars templates into functions that render HTML, text and other output.

Minimal Jekyll clone for Node.js that builds a site from Jekyll-style folders with Mold templates.

Code generator that turns OpenAPI specifications into TypeScript clients, schemas and other generated code, published as @hey-api/openapi-ts.

JavaScript syntax highlighter with automatic language detection that runs in the browser and on Node.js.

WebSocket backend for Yjs documents that syncs changes between clients in real time, from the team behind Tiptap.

Web framework built on Web Standards that runs on any JavaScript runtime.

Image optimizer that serves images in any size and format from a URL, using sharp for raster images and svgo for SVG.

Documentation generator that builds HTML API documentation from comments placed in JavaScript source code.

Content management tool that edits Markdown, YAML and JSON files in a codebase, through the local file system or GitHub.

Open-source backend server with a pre-built API, realtime notifications and data storage for web, mobile and IoT applications.

Component workshop that runs React component stories in a Vite dev server and builds them into a static app.

Open-source platform for tracing, evaluating and monitoring LLM applications, sent from application code through SDKs and OpenTelemetry.

Vite plugin that configures Vite for use with a Laravel backend server.

Backwards-compatible language extension for CSS that compiles Less stylesheets to plain CSS with Node.js or in the browser.

Open-source automated tool that audits web pages and web apps for performance, accessibility, SEO and best practices.

CSS parser, transformer, bundler and minifier written in Rust, usable from JavaScript, Rust or a standalone CLI.

JavaScript library for building web components with reactive properties and declarative HTML templates.

Config-first web framework that builds business apps and internal tools from YAML configuration, served by a Node.js server.

SQL query builder, Active Record ORM and migrations library for AdonisJS applications.

JavaScript Markdown parser that follows the CommonMark specification and supports syntax extensions and plugins.

HTML-based language and runtime for building web applications and user interfaces, with the Marko Run application framework.

TypeScript framework for building AI agents and applications.

Open-source headless commerce platform for Node.js with commerce modules, an admin dashboard and REST store and admin APIs.

Open-source headless platform for building multi-vendor marketplaces, built on the Medusa commerce core.

JavaScript bundler for React Native projects, with a development server and a build API.

Static site generator that builds websites from React JSX components with Vite.

Workflow automation platform for building AI agents and workflows on a visual canvas, self-hosted or in the cloud.

Progressive Node.js framework for building efficient, scalable server-side applications with TypeScript.

React framework for building full-stack web applications, with routing, rendering and data fetching.

Web admin interface for managing Nginx reverse proxy hosts, distributed as a Docker image with free Let's Encrypt certificates.

TypeScript server toolkit for full-stack servers with filesystem routing, storage, caching and a Vite plugin, deployable to Node.js, Bun, Deno and serverless hosts.

Browser-based flow editor and Node.js runtime for building event-driven applications that connect devices, services and data.

Vue-based framework for building server-rendered, static and hybrid websites and web apps.

File-based content module for Nuxt that queries Markdown, YAML, CSV and JSON files from a Vue application.

Static search library that builds a search index from built HTML at build time and serves search from static files.

Styling engine that generates atomic CSS at build time from type-safe TypeScript style definitions.

Open source backend for web and mobile apps that runs on Node.js, stores data in MongoDB or PostgreSQL, and can be mounted on an Express app.

TypeScript framework that runs inside a Next.js app and generates an admin panel, database schema and REST, GraphQL and local APIs from one config, used as a headless CMS or application backend.

Embeddable WebAssembly build of PostgreSQL, packaged as a TypeScript and JavaScript library for the browser, Node.js, Bun and Deno.

Design environment that renders JSX from a team's own component library across themes and screen sizes.

Browser automation and end-to-end test framework that drives Chromium, Firefox and WebKit through one API.

Process manager for Node.js and Bun applications that keeps them running, with a built-in load balancer.

Tool for transforming CSS with JavaScript plugins.

JavaScript library for building component-based user interfaces on a virtual DOM, with a React-compatible API through an optional alias.

Opinionated code formatter for JavaScript and many other languages that rewrites source to a consistent style.

TypeScript and Node.js object-relational mapper that generates a type-safe database client from a schema file.

Open-source visual editor library for React that lets users build drag-and-drop pages from the components an app defines.

Vue.js framework with UI components and a CLI that builds single-page, server-rendered, static, PWA, mobile, desktop and browser extension apps.

Framework for web apps that resumes on the client instead of hydrating, with Qwik City for routing and server rendering.

JavaScript library for building component-based user interfaces for the web, with react-dom for browsers and server rendering.

Router for React whose framework mode adds server rendering, static pre-rendering and data loading for building full-stack web apps.

Full-stack web framework built on Web APIs that combines routing, data, UI and asset compilation in one stack.

JavaScript and TypeScript bundler written in Rust with a Rollup-compatible API, designed as the bundler of Vite.

JavaScript module bundler that compiles ES module source into bundles for browsers, Node.js and other platforms.

Build tool for modern web applications that runs on Rspack and supports React, Vue, Svelte and other frameworks.

Fast Rust-based bundler for the web with a modernized webpack API.

Static site generator built on Rsbuild that turns Markdown and MDX files into documentation websites.

Composable React components whose source code is added to a project with a CLI, so the project can customize it.

Node.js module that resizes and converts JPEG, PNG, WebP, AVIF and other image formats, using the libvips image library.

Syntax highlighter for JavaScript runtimes that colors code with the TextMate grammars used by VS Code.

Markdown-based slides maker and presenter that builds slide decks as web pages with Vue and Vite.

Library that enables low-latency, bidirectional and event-based communication between a client and a server.

Full-stack application framework for Solid, built on Vite.

Open-source commerce platform built on Ruby on Rails, with a REST API, TypeScript SDKs and a Next.js storefront.

Documentation theme and integration for the Astro framework that builds documentation websites from Markdown, Markdoc and MDX.

Toolchain that compiles TypeScript components into web components, distributable as custom elements, framework wrappers or prerendered websites.

Build system that exports design tokens defined once in JSON or JavaScript to platform formats such as CSS, iOS, Android and JavaScript.

CSS linter that reports errors and enforces conventions in stylesheets, with rules, plugins and shareable configs.

Compiler that turns Svelte components into JavaScript that updates the DOM directly, used to build web applications.

Svelte-based framework for building web applications with server rendering, prerendering and client-side rendering.

Node.js library and command-line application that optimizes SVG files by removing redundant information, with a browser bundle and a webpack loader.

Full-stack framework for React and Solid, powered by TanStack Router, for server-rendered, static and client-only web apps.

JavaScript minifier and compressor for ES6+ code, used from the command line or through the Node.js API.

Express-like web framework for Node.js, written in TypeScript and published as native ESM.

Bundler for TypeScript and JavaScript libraries that emits ESM, CJS, IIFE or UMD bundles and declaration files, built on Rolldown.

Documentation generator that builds HTML or JSON API documentation from the comments of TypeScript projects.

Programming language that adds static types to JavaScript, with a compiler (tsc) that converts its code to JavaScript.

Open-source web and product analytics platform, self-hosted or offered as Umami Cloud.

Open-source user onboarding platform for in-app product tours, checklists and surveys.

Content layer library that turns Markdown, MDX, YAML and JSON files into typed data for a JavaScript or TypeScript application.

Open-source headless commerce framework built on Node.js and TypeScript, with a GraphQL API.

Command-line interface of the Vercel hosting platform, used to deploy projects, run them locally and manage them from a terminal.

JavaScript toolkit for composing full stack applications and frameworks from Vite and Nitro primitives.

Frontend build tool and dev server for web applications, with a development server and a production bundler.

Static site generator built on Vite and Vue that turns Markdown content into content-centric websites.

Testing framework for JavaScript and TypeScript projects, built on Vite.

Documentation framework that builds Markdown and MDX sources into docs sites, powered by Vite.

JavaScript framework for building user interfaces on the web, with a reactive rendering system and optional server rendering.

JavaScript module bundler that packs application modules and assets into optimized output for browsers and other runtimes.

Sync engine that keeps a client-side datastore of a web app in step with a Postgres database.

TypeScript-first schema validation library that validates data and infers static types from the same schemas.