Beautify, unpack or deobfuscate JavaScript and HTML, make JSON/JSONP readable, etc.

Mockingbird is an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or application.

Retrospectiva is an open source, web-based, project management and bug-tracking tool.
It is intended to assist the collaborative aspect of work carried out by software
development teams through the use of blogs, a wiki and tickets.

YOURLS stands for Your Own URL Shortener. It is a small set of PHP scripts that will allow you to run your own URL shortening service (a la TinyURL or bitly).

A Simple Standards-Based Slide Show System

PunyPNG is a free website optimization tool that dramatically reduces the file size of your images without any loss of quality.

(X)HTML5 Validator

Landing page optimization for your mocks and wireframes.

Fivesecondtest helps you fine tune your landing pages and calls
to action by analyzing the most prominent elements of your design.

Digital Publishing Platform

Color palette generation tool

Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js

Online mind mapping software

MindMeister is an online mind mapping tool that lets you capture, develop and share ideas visually.

Collaborative mind mapping in your browser

TinEye is a reverse image search engine. It finds out where an image came from, how it is being used, if modified versions of the image exist, or if there is a higher resolution version.

PHP_CodeSniffer tokenises PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.

Test and track your emails. Email previews, analytics and spam filter testing.

Upload an image (GIF, JPEG or PNG) and convert it to a Windows favicon (.ico)

This is a web interface to compress your JavaScript or CSS.

The JavaScript Code Quality Tool