Improving Performance in Firefox and Across the Web with Speedometer 3

XBL to Web Components migration in Firefox

Posts tracking Firefox’s migration from XBL to Web Components.

TinyColor

A popular no-dependency color parsing library for JavaScript.

Spectrum Colorpicker

A color picker companion to TinyColor for web apps.

Colorpicker in DevTools

Background on the landing a color picker into Chrome's builtin inspector.

Browser-based diff tool

Compare text differences directly in the browser.

CSS Gradient Generator

Create CSS gradients with real-time previews and code.

Instant Sprite

CSS Sprite Generator: combine images into CSS sprites.

iOS UIColor Picker

Select and convert colors for UIKit projects.

DevTools test pages

Test pages for experimenting with DevTools.

FileReader.js

Simplifies reading files in web apps with a consistent API.

DevTools Snippets

Useful JavaScript snippets for browser developer tools.

esm_sandbox_eval

Evaluate JS modules in a wasm sandbox (browser or server, workers or main thread).

videoconverter.js

Experiment to convert videos in the browser.

Colorstash

A color pallete tool in < 10K of JS.

ExpandingTextareas

Auto-resize textareas based on user input.

nativesortable

A lightweight drag-and-drop sorting library without dependencies.

bindWithDelay Plugin

Delays event bindings for improved performance.

jQuery UI Anglepicker

An angle selection widget.

A* graph search in JavaScript

A JavaScript pathfinding implementation.

C# Multipart Form Post

Guide for handling multipart form uploads in C# projects.