The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

Get a full fake REST API with zero coding in less than 30 seconds (seriously)

Simple HTML5 Charts using the <canvas> tag

Parse, validate, manipulate, and display dates in javascript.

Based on a true story

✂️ Modern copy to clipboard. No Flash. Just 3kb gzipped 📋

Opensource IDE For Exploring and Testing Api's (lightweight alternative to postman/insomnia)

Automated auditing, performance metrics, and best practices for the web.

JavaScript syntax highlighter with language auto-detection and zero dependencies.

x86 PC emulator and x86-to-wasm JIT, running in the browser

Open-source JavaScript charting library behind Plotly and Dash

Chrome Extensions Samples

🦄 Record your terminal and generate animated gif images or share a web player

Themes for Bootstrap

HTTP server mocking and expectations library for Node.js

A web based mission control framework.

🎨 Color Pickers from Sketch, Photoshop, Chrome, Github, Twitter & more

ChakraCore is an open source Javascript engine with a C API.

💬 Speech recognition for your site

Check for outdated, incorrect, and unused dependencies.

AWS Lambda Power Tuning is an open-source tool that can help you visualize and fine-tune the memory/power configuration of Lambda functions. It runs in your own AWS account - powered by AWS Step Fu…

🌐 Turn any <input> into an address autocomplete

WebGL visualization for displaying animated traffic graphs

scanner detecting the use of JavaScript libraries with known vulnerabilities. Can also generate an SBOM of the libraries it finds.

Drafts your next release notes as pull requests are merged into master.

A collection of JSON schema files including full API

A tiny JavaScript library for calculating sun/moon positions and phases.

sprintf.js is a complete open source JavaScript sprintf implementation

Monzo's real-time incident response and reporting tool ⚡️

🚗Uber, at your fingertips