engine from TrimPath is a lightweight GPL open-source component that lets you have template-based programming (like PHP/ASP/JSP) while running in a web browser.
a free source code editor which supports several programming languages running under the MS Windows environment. based on Scintilla edit component (a very powerful editor component)
a development tool to help programmers adheres to a coding standard. It automates the process of checking code to spare humans of this boring (but important) task.
visual programming environment written in JavaScript for the Mozilla Framework.Enables users to build programs graphically by connecting functional modules to fetch and direct the flow of data, play sound or video, add animation or interactivity, and disp
integrates with Firefox to put a wealth of web development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.
Moksha is a platform for creating live collaborative applications. It provides a layer of cohesion and collaboration between existing applications, services, and communities.
Google Doctype is an open encyclopedia and reference library. Written by web developers, for web developers. It includes articles on web security, JavaScript DOM manipulation, CSS tips and tricks, and more. The reference section includes a growing library of test cases for checking cross-browser and cross-platform compatibility.