You might be interested to check other related posts for more useful tools:
1-Roar - Notifications (v1.0) Roar is a notification widget that streamlines incoming messages, such as updates or errors, without distracting the user from their browser experience or breaking their work-flow by displaying obtrusive alerts.
3-Growl 2.0 with Mootools Growl is a notification system for Mac OS X, it allows applications that support Growl to send you notifications.
6-WaveMaker Visual Ajax Studio WaveMaker’s Studio and Framework provides a powerful solution for rapidly developing web-based applications. Drag & drop assembly of widgets and service, code-free integration of web-services, databases and Ajax UI, and one-touch deployment to standard Tomcat servers all work seamlessly together to let you build complete web apps in hours!
10-The Regulator The Regulator is an advanced, free regular expressions testing and learning tool that allows you to build and verify a regular expression against any text input, file or web, and displays matching, splitting or replacement results within an easy to understand, hierarchical tree.
11-SnippelySnippely is a basic text and code organizational tool. Instead of storing bits of code, quick notes, and memos in text files all over your hard drive, this application will let you save and organize "snippets" in one convenient location.
13- Google Mashup EditorThe Google Mashup Editor provides simple tools and features that allow you to create mashups in minutes with the following features:
- A set of tags that compiles into AJAX UI components.
- Syntax highlighting
- Autocomplete of gm tags by pressing the tab button
- Quick access to documentation for any tag by pressing F2
- File upload and management
- Error checking and notification
15- ThemeRollerThemeRoller allows you to design custom jQuery UI themes for tight integration in your projects.
17- Clean AJAX Clean is an open source engine for AJAX, that provides a high level interface to work with the AJAX technology. It was created to solve real problems found on AJAX applications, and is used in many projects. Clean will help you to adopt AJAX saving your time and your code, reducing your learning curve and the code reengineering.
Browser Addons and Toolbars
20- Greasemonkey Greasemonkey is a Firefox extension that allows you to customize the way web pages look and function. You can use it to make a web site more readable or more usable. You can fix rendering bugs that the site owner can't be bothered to fix themselves.
21- Web Developer extension for Firefox This tool is really excellent for quick and easy webdevelopment. It Adds a menu and a toolbar with various web developer tools.
22-Internet Explorer Developer Toolbar The Microsoft Internet Explorer Developer Toolbar provides a variety of tools for quickly creating, understanding, and troubleshooting Web pages.
23-DebugBar An Internet Explorer plug-in that brings you new powerful features :
- DOM Inspector: View DOM Tree and modify tags attributes and css attributes on the fly to test your page
- HTTP Inspector: View HTTP/S request to check cookies, GET and POST parameters, view server info
- HTML Validator: Validate HTML code to correct and optimize your code and html size of your page
- And many more features: See page cookies, get pixel color on a page, make a page screenshot.