roughViz.js is a reusable JavaScript library for creating sketchy/hand-drawn styled charts in the browser, based on D3v5, roughjs, and handy.

Porthole is a small Javascript library that makes it safe and easy to communicate with cross domain iFrames. Porthole relies on hidden iFrames (later referred to a as proxy) to exchange information. The caller sets a url fragment with the message to pass. The proxy by virtue of being served from the same origin as the callee, invokes a callback method with an event object that contains the message read from the url fragment. The message signaling mechanism is based on a resize event.

"Due to recently disclosed security vulnerabilities for nearly all computers, you should disable any JavaScript cookie manipulation on your website (e.g. when using the critical CSS technique) by setting your cookies to be SameSite and HttpOnly on the server, as recommended on the Chromium wiki. Otherwise, sensitive data, like session keys, may be exposed to malicious third parties."

Lightweight JavaScript library for accurate web loading progress.

"Chance is a minimalist generator of random strings, numbers, etc. to help reduce some monotony particularly while writing automated tests or anywhere else you need anything random."

A general-purpose, web standards-based platform for parsing and rendering PDFs.

"SuperAgent is light-weight progressive ajax API crafted for flexibility, readability, and a low learning curve after being frustrated with many of the existing request APIs."

Want to use Vanilla JS but find native APIs a bit unwieldy? Bliss is for you. And it weigths only 10Kb.

Librairie très complète de manipulation d'image pour la découpe. Pas de gestion de la D.A. ou du sujet, en revanche.

"X-Tag is a Microsoft supported, open source, JavaScript library that wraps the W3C standard Web Components family of APIs to provide a compact, feature-rich interface for rapid component development."

A clean and simple notification plugin (alert/growl style) for javascript, with no dependencies.

localForage is a JavaScript library that improves the offline experience of your web app by using an asynchronous data store with a simple, localStorage-like API. It allows developers to store many types of data instead of just strings.

Made at GitHub, open source, includes a small Gruntfile for compiling SCSS, Autoprefixer for vendor prefixes, and Parker for CSS stats.

Check types, regexps, presence, time and more...

Immutable persistent data collections for Javascript which increase efficiency and simplicity.