Sites like galio.io

React Native Elements documentation for an open-source UI component kit used to build React Native apps

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

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

GB Studio is a drag-and-drop game creation tool for making Game Boy games, with visual scripting and no coding required

React Navigation, a documentation site for routing and navigation libraries in React Native and Web apps

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

A project starter kit with build tooling for modern static websites, covering dev server, minification, Sass and image optimization

Personal site of Alex Ellis, a cloud native consultant writing about serverless, microVMs and containers, and his products OpenFaaS, Actuated and Inlets

Mockoon, a free open-source desktop app and CLI for designing and running mock APIs locally, plus the Mockoon Pro team service

Ant Design, an open-source React UI component library and design system, with its release changelog and documentation

Meraki UI, a collection of free Tailwind CSS templates, components and blog layouts for building websites and dashboards

BootstrapVue is a library of Bootstrap v4 components and grid styles for Vue.js v2, with documentation and an online playground

Open source wireframe kit by Vijay Verma offering a starter library of components and mobile screens for prototyping

This Week In React is a weekly newsletter by Sebastien Lorber curating news on the React and React Native ecosystem

Emmet, a plugin toolkit for writing HTML and CSS faster in text editors, by developer Sergey Chikuyonok

A web-based motion graphics editor for creating animated videos in the browser, named Motionity, available on desktop computers only

A JavaScript table plugin with extended features, built for integration with Bootstrap, Bulma, Semantic UI and other CSS frameworks

Unminus is a platform offering free downloadable music from independent artists, streamed directly from SoundCloud feeds

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

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

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

Iconoir, a free open-source library of SVG, font and React icons for designers and developers, with a changelog and contribution guide

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

A JavaScript toolkit, gulp.js, for automating build workflows with composable streaming tasks and plugins, documented through its project website

CocoaPods.org is a search and browse index for iOS, macOS and Swift library packages, with pages on the CocoaPods dependency manager

Modern CSS Solutions, a site of CSS tutorials, videos and newsletter by Stephanie Eckles on modern CSS techniques

Tabler, an open-source Bootstrap-based UI kit, with documentation, a 5,000-plus outline icon set and HTML email templates, maintained by Paweł Kuna

JavaScript image gallery and lightbox library PhotoSwipe, with documentation for its events, filters, methods and captions

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

NativeScript, an open-source framework for building native iOS and Android apps with TypeScript, plus a showcase of community apps

A collection of free online tools for text, image and PDF tasks, gathered in one toolbox by 10015 Tools

Aleksandr Hovhannisyan's personal website: a software developer's blog on programming, life and other topics, with notes, CSS art and guitar covers

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

Lando, a free open-source local development tool and blog run by the Lando Alliance nonprofit, covering web development workflows

A free open source library of 3D icon renders created in Blender, with a Figma plugin, by designer @realvjy

DEV Community, a English-language online community and blogging platform where developers publish posts, tags and challenges about programming and software

Bulma, a free open-source CSS framework for building responsive websites, documented on its site by developer Jeremy Thomas

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