A FREE PHP spell checker that takes the text in a text field via javascript and spell checks it in its own window. The user can perform the usual spell checking operations (ignore, ignore all, change, change all, etc). Simple to include in any PHP page.
XSpell is a spell checker for HTML forms. It is composed of a XML-RPC based browser client written in Javascript and an XML-RPC service implemented in PHP 4+.
What exactly is Jazzy? Well, for developers, it is a set of APIs (Application Programming Interfaces) that allow you to add spell checking functionality to Java Applications easily. For end-users, Jazzy does not do too much besides spell check things you paste into an applet. Eventually, I plan to create an applet that would be suitable for use in HTML forms that will allow the user to spell check a html textarea before submitting.
Ekit is a free open source Java HTML editor applet and application. The Ekit standalone also allows for HTML to be loaded and saved, as well as serialized and saved as an RTF. It is approaching its first production release version.
Speller Pages is a free, Open Source Web user interface and JavaScript library for a server-side spell check program. Available in PHP or Perl/CGI versions, Speller Pages allows you to bring the superior spelling suggestion capabilites of GNU Aspell to users of your Web site.
Our web based Spell Check script, called WBOSS (Web Based Open Source Spell Checker) is designed to work with any text input form on any web page. It is called from a second form, opens a pop-up window, allows the user to check the text, then inserts the text back in the main window's form field. WBOSS is being used in over 15 countries (at last count), in hundreds of public and private institutions in the United States and abroad.