Sites like kubb.dev

OpenAPI TypeScript is a tool that converts OpenAPI 3.0 and 3.1 schemas into TypeScript types and type-safe fetch clients

TanStack, an open-source collection of headless web application libraries and tools, with a design system, blog and chat app

Mock Service Worker, an API mocking library for browser and Node.js JavaScript, with documentation and guides for intercepting network requests

Faker, a JavaScript library documentation site for generating realistic fake test data, with API reference, guide and modules

An open-source React and Next.js onboarding library for building interactive product tours, with documentation, FAQ and demo

Personal website of Anthony Fu, a design engineer and open source developer, with notes, talks, demos and tool pages

React-Uploady is a lightweight React library and documentation site for building browser file-upload features

A testing framework called Vitest, powered by Vite, with documentation for writing, mocking and configuring JavaScript tests

The Oxc project's website describing a collection of open-source JavaScript tools written in Rust, including a compiler, with its team and sponsorship pages

Elysia, an ergonomic TypeScript backend web framework with end-to-end type safety, documented on its official site and blog

Poimandres, an open-source developer collective's site on React and three.js 3D graphics, with articles and projects by Christian Ortiz

Quobix's documentation for vacuum, a fast open-source linter for OpenAPI, AsyncAPI and JSON Schema written in Go

React Hook Form is a documentation site for a performant React form library, covering its API, TypeScript types and FAQs

Biome, an open-source toolchain for web projects that formats, lints, and checks JavaScript, TypeScript, and related code

Blitz.js, a fullstack toolkit and conventions framework for building Next.js applications, with documentation and showcase pages

A web community and publication for API developers, with articles, a podcast, books and a newsletter by Phil Sturgeon

Drizzle Team's open-source TypeScript libraries: Drizzle ORM, Drizzle Kit, Drizzle Seed, Drizzle GraphQL, and CLI tools

JSON Schema is a declarative language and documentation site for annotating and validating the structure and data types of JSON documents

A JavaScript testing framework named Jest, documented on its official site, with French and English pages and community help

Yarn, a JavaScript package manager; its documentation and API reference for the @yarnpkg packages

Stylelint, a linter for CSS and related stylesheet syntax, with documentation, changelog, contributing guide and vision pages

Lucia, a deprecated TypeScript authentication library and its documentation site, with an auth book and replacement code

pgRouting project website documenting an open-source PostGIS extension for geospatial routing functionality, with manuals, workshops and sponsorship information

The official website of Vue.js, the open-source JavaScript framework for building web user interfaces, with its API reference and documentation

NuGet is the central package repository and package manager for .NET, with package search, download statistics and client tools

A documentation site for Changesets, an open-source tool for managing package versioning and changelogs in monorepos and CI

Nitter, a free alternative front-end for browsing X (formerly Twitter) without an account, run by its maintainer Wooji

AsyncAPI, an open source initiative and specification with tools for defining and documenting event-driven architectures, under the Linux Foundation

Prettier, an opinionated code formatter for JavaScript, CSS, Markdown and other languages, with editor and CI integrations

Node.js, an open-source cross-platform JavaScript runtime for building servers, web apps, command line tools and scripts

A React component library company offering free Material UI components and MUI X advanced data tools for building web interfaces

ESLint project website: documentation, playground and team pages for ESLint, the pluggable open-source JavaScript linter

ArkType: a TypeScript validation library and documentation site, with a playground, docs, FAQ and agent guides

TkDodo's blog: personal blog by Dominik Dorfmeister on JavaScript, React, TypeScript, TanStack Query, API design and open source

A UI framework and documentation site for the Svelte web framework, which compiles components into minimal browser code

Typesense, an open source in-memory search engine and alternative to Algolia and Elasticsearch, with documentation and Docker images

Badgen, a service generating status badges for software projects, such as package versions, ratings and downloads, from URLs

The GNOME project's website, presenting its free and independent desktop computing platform and its community, in English and several other languages

The official home of the Haskell programming language, covering its compiler GHC, build tool Cabal, installer GHCup and community resources

Can I use..., a reference site of browser support tables for web features such as HTML5, CSS3 and JavaScript

The Rollup JavaScript module bundler's official website, with documentation, FAQs, an online REPL and browser build guides

pdfme, a free open-source JavaScript library for generating, filling and viewing PDFs from JSON templates, with a visual designer

Fastify, a Node.js web framework project with documentation, community resources, benchmarks and a plugin ecosystem