Strong JS
It is a shrinker/obfuscator for JavaScripts. You can use it to easily and quickly reduce the size of typical JavaScript files by 50% on average depending on the style the code is written in. Strong JS allows you to delete all unnecessary bytes in scripts, such as comments, new line characters... Also, it can rename variables giving them short names. ... Shrinking JavaScripts reduces the time they are downloaded from the site and the time needed to parse and execute them on the client side. ... You won't see a difference, only the file size will be smaller.
http://www.stronghtml.com/tools/js/downloads/js.zip - 371Kb - Download - Screenshot

SplineTech JavaScript HTML Debugger
SplineTech JavaScript HTML Debugger is a unique web development tool that enables you to easily edit and debug JavaScript and VBScript inside HTML pages. Client-Side JavaScript, JScript and VBScript debugging languages are fully supported for simple and complex HTML and DHTML debugging scenarios. ... Now Featuring dockable floating windows, and an intagrated interactive step by step javascript debugging guide. ... Latest feature added - Local variable Watch tree.
http://www.remotedebugger.com/javascript_debugger/csd10.exe - 577Kb - Download - Screenshot

Javascript Obfuscator
Stop theft of your JavaScript sources! Javascript Obfuscator converts the JavaScript source code into scrambled and completely unreadable form, preventing it from analysing and theft. Javascript Obfuscator can * process javascript tags in html files and all . ... js files associated with html pages as well as separate .
http://javascript-source.com/jsosetup.exe - 409Kb - Download - Screenshot

JavaScript Plus!
JavaScript Plus! is an advanced javascript editor for windows. Modern, clean and convenient interface, quick startup, true flexibility and powerful features allow you to create and edit JavaScript. JavaScript Plus! makes it easy to handle JavaScript. ... Benefits for professionals Edit HTML, JavaScript within single program Clean, lightweight and fast loading Familiar interface allows to jumpstart All essential code editing features are right at their place Fully customizable text editor, menus, toolbars, shortcut keys Efficiently reuse common code fragments Few click FTP upload or update...
http://www.vbsoftware.cl/jspad/setup/setup.exe - 2Mb - Download - Screenshot

Javascript Menu Master
With Javascript Menu Master, you can create compact, attractive, and convenient Javascript-powered pull-down navigational menus for your web site with very little effort and absolutely no knowledge of writing complex Javascript and HTML code. Utilizing the latest advances in Javascript and HTML... Context help for each individual feature of the program is also just a few mouse clicks away whenever it is needed. ... Though creating menus with the program is a breeze, complete and detailed online help is available at the click of a button to guide you every step of the way through the process.
http://www.harmonyhollow.net/download/jmmaster.exe - 1Mb - Download - Screenshot

DevMansion JavaScript Menu Builder
DevMansion JavaScript Menu Builder is a WYSIWYG, lightweight, easy-to-use and easy-to-learn FREEWARE tool focused exclusively on client side JavaScript menus creation. Inside, you will find everything you need to create menus for Your site in minutes.
http://www.devmansion.com/Download...ilename=Builder_3_0_6210_1544.exe - 644Kb - Download - Screenshot

Antechinus JavaScript Editor
Become a JavaScript expert in record time with JavaScript Editor, and reap the benefits: - Design great web pages: transform your Web pages from displaying static content to live, dynamic, interactive applications. - Save time and automate everything: run JavaScript directly from the Editor for... Eradicate syntax errors in no time: JavaScript Editor finds them, highlights them, and explains them. ... Cutting edge: execute any portion of your JavaScript code straight from the Editor - no web page needed!
http://www.c-point.com/download/jseditorpro.zip - 5Mb - Download - Screenshot

1st JavaScript Editor Pro 3.5
1st JavaScript Editor is advanced JavaScript Editor, Validator and Debugger for beginners and professionals! Beside rich possibilities of editing scripts (JavaScript, HTML, CSS, VBScript, PHP and ASP syntax highlighting, etc) the program offers large snippets library with full collection of... JavaScript Editor offers built-in JavaScript Debugger which allows you run and debug JavaScript code one line at a time, and each time, either adding extra code on the fly or checking how variables change in the run of the program.
http://yaldex.com/Ready/fjse.zip - 7Mb - Download - Screenshot

1st JavaScript Editor Pro 3.6
1st JavaScript Editor is advanced JavaScript Editor, Validator and Debugger for beginners and professionals! Beside rich possibilities of editing scripts (JavaScript, HTML, CSS, VBScript, PHP and ASP syntax highlighting, etc) the program offers large snippets library with full collection of... JavaScript Editor offers built-in JavaScript Debugger which allows you run and debug JavaScript code one line at a time, and each time, either adding extra code on the fly or checking how variables change in the run of the program.
http://yaldex.com/Ready/fjse.zip - 7Mb - Download - Screenshot

1st JavaScript Editor Lite 3.4
1st JavaScript Editor is advanced JavaScript Editor, Validator and Debugger for beginners and professionals! Beside rich possibilities of editing scripts (JavaScript, HTML, CSS, VBScript, PHP and ASP syntax highlighting, etc) the program offers large snippets library with full collection of... First JavaScript Editor is used for professionally editing JavaScript code and creating animations and other special effects for Web pages using DHTML, CSS and JavaScript. ... Moreover, JavaScript Editor contains JavaScript tutorial, HTML tutorial, CSS tutorial, CSS reference, JavaScript reference...
http://yaldex.com/Ready/fjse.zip - 6Mb - Download - Screenshot