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Spell checking for ASP.NET based web applications

RapidSpell Web ASP.NET


Simple, but flexible, spell checking

Quickly integrate our refined web spell checker into your ASP.NET or ASP.NET Core web application. Keyoti have dedicated two decades to spell checking controls for web developers.
Inline & As You Type Spell Checking
Dialog Spell Checker

Make it your own

Our open, comprehensive API lets you make it work your way, and fit your web application.

With license levels to suit all, from single websites to enterprise and OEM licensing.

Use it with any framework

Whether Javascript is your thing or not, easily add the minimal Javascript code to your app, it works on
  • ASP.NET (aspx, ascx etc)
  • MVC
  • ASP.NET Core
  • Razor
  • HTML
  • ASP
  • AJAX & more
Adding the scripts to enable spell checking
Dictionaries available for RapidSpell Web ASP.NET

Global reach

4 English language variations (US, UK, CA, AU) included free of charge with 17 extra dictionaries also available, including medical and legal. All of which are modifiable.

Quick designer based usage with the flexibility of code-behind access

RapidSpell Web ASP.NET adds spell check functionality to your ASP.NET web applications and CMS. Simply drag-and-drop onto your aspx web page (Web Form) in Visual Studio or directly access the classes in a code behind page. No programming skills are required to use RapidSpell Web ASP.NET, with its strong Visual Studio design time support, making this control accessible to ASP.NET website designers. Visual Studio toolbox
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Comprehensive ASP.NET text box support (plain, rich, custom)

Spell check any server or client side text boxes: <asp:textbox>, any Html text box component such as <textarea> and <input type='text'> and 3rd Party controls, such as TinyMCE, CKEditor and more. The custom client side interface mechanism allows interaction with practically any text box. Html editor support
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Minimal application footprint

By adding 2 <script src...> tags you automatically configure the spell checkers (as you type + dialog) to work with all text boxes in the form. Specific text boxes can also be ignored using nospell attributes or the Javascript API. Light footprint

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