Ideone is an online compiler and debugging tool which allows youto compile source code and execute it online in more than 60 programming languages.
The Visual Understanding Environment (VUE) is an Open Source project based at Tufts University. The VUE project is focused on creating flexible tools for managing and integrating digital resources in support of teaching, learning and research. VUE provides a flexible visual environment for structuring, presenting, and sharing digital information.
Self-hosted code-review software
Eloquent JavaScript is a book providing an introduction to the JavaScript programming language and programming in general.
The safest, smartest, fastest and most reliable DNS on the planet.
Beautify, unpack or deobfuscate JavaScript and HTML, make JSON/JSONP readable, etc.
Wireframing, mockups and prototyping for websites and applications
A Lawnchair is sorta like a couch except smaller and outside. Perfect for HTML5 mobile apps that need a lightweight, adaptive, simple and elegant persistence solution.
Despite its popularity, few know that JavaScript is a very nice dynamic object-oriented general-purpose programming language. How can this be a secret? Why is this language so misunderstood?
base2 is a lightweight library that irons out all the annoying differences in JavaScript implementations. It provides the additional functionality from JavaScript 1.6+ that only Mozilla browsers implement.
PeoplePods is a developer-friendly social software toolkit
Build applications where people meet, talk, share, read, work, publish and explore.
Mockingbird is an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or application.
Extend, combine and compress CSS
A modular CSS framework for truly flexible, accessible and responsive websites
The Hype Machine follows music blog discussions
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.
Ajax GUI Framework
The Closure Compiler, Library, Templates, and Stylesheets help developers create powerful and efficient JavaScript.