Userscript
A logger for just about everything.
An extension to help you gain full control of any website by redirecting traffic, replacing, editing, or inserting new content.
Tamper Dev is an extension that allows you to intercept and edit HTTP/HTTPS requests and responses as they happen without the need of a proxy. Works across all operating systems (including Chrome OS).
Simplified HTTP requests for Tampermonkey scripts.
A pure javascript QR code reading library. This library takes in raw images and will locate, extract and parse any QR code found within.
Simple HTML5 Charts using the <canvas> tag
Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB
p5.js is a client-side JS platform that empowers artists, designers, students, and anyone to learn to code and express themselves creatively on the web. It is based on the core principles of Proces…
It's your favorite JavaScript library, only faster
A JavaScript checker and optimizer.
Package for the JS version of closure-compiler for use via NPM
A JavaScript implementation of various web standards, for use with Node.js
DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:
Renders HTML into the browser's canvas
Client/server side PDF printing in pure JavaScript
⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API
⏳ Modern JavaScript date utility library ⌛️
Watch for DOM elements creation and removal
A lightweight, reusable, cross-browser graphical settings framework for inclusion in user scripts.
F(unctional) util(ities). Resistance is futile.
Give your JS App some Backbone with Models, Views, Collections, and Events
Inject Javascript and CSS right from your file system. Think GreaseMonkey for more advanced users.
A small, fast, JavaScript-based JavaScript parser
Micro JS lib that provide local & session storage with expiration time.
An ES6 Map wrapper for the synchronous userscript storage API