Web Themes

In addition to over 20 built-in Themes, you can use style properties and CSS for appearance customization. Templates are also available for fine-grain control over UI elements and control layout.

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Your Feedback Matters

Our objective is constant and never-ending improvement. From our advanced ASP.NET Controls to straightforward components, feedback from you helps us refine our tools.

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Integration Made Easy

Whether you're using our Rich Text Editor to create your own word processor or you simply want to check spelling in a Memo field, you'll find that integrating Spell Checking across your entire web project is as easy as 1-2-3.

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Learn More about Our ASP.NET Spell Checker

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Dictionaries & UI Elements
The ASP.NET Spell Checker ships with all UI elements you'll need to fully replicate the spell checking user experience available in Microsoft Word or Microsoft Outlook.
Spelling Dictionaries
Supports Ispell, OpenOffice and Hunspell dictionary formats.
Spelling Dictionaries
The DevExpress ASP.NET Spell Checker includes built-in support for custom dictionaries in plain text or the following read-to-use dictionary formats: Ispell, OpenOffice and Hunspell.
Spell Checking Dialogs
Built-in spelling error indication forms.
Spell Checking Dialogs
The error indication dialog is built-in. Much like Microsoft Office, end-users can correct misspelled words, ignore misspelled words and add words to a custom word list.
Spelling Options Dialog
Built-in spell checking options dialog.
Spelling Options Dialog
From general options such as "ignore uppercase" to editing custom dictionary entries and language selection, the Options Dialog allows end-users to modify spell checking behavior as necessary.
"I greatly appreciate your support - your extensive documentation, tutorials, and examples..."Tim Miller
Supported Controls
You are always in control with the DevExpress Spell Checker. Use it to spell check standard Microsoft ASP.NET Controls or check spelling within DevExpress Controls such as our RTF and HTML Editor.
Standard ASP.NET Editors
Check for spelling errors inside standard Microsoft text editors.
Standard ASP.NET Editors
You can check spelling within standard Microsoft ASP.NET controls. To simplify the spell checking process for non-DevExpress controls, we provide several client-side methods including Check, CheckElementById and CheckElement.
DevExpress ASP.NET Editors
Check for spelling errors within DevExpress data editors.
DevExpress ASP.NET Editors
In this animation, we demonstrate how to correct spelling errors within data editors we ship inside our ASP.NET Data Editors Library. Just like standard ASP.NET controls, you can use the Check, CheckElementById and CheckElement methods to initiate the spell check process.
DevExpress Custom Edit Forms
Check for spelling errors within custom DevExpress edit forms.
DevExpress Custom Edit Forms
In this animation, we demonstrate how you can incorporate spell checking within our ASP.NET GridView's Edit Form. The Spell Checker's CheckElementsInContainer method is used to check for spelling errors across all data editors within the Edit Form.
DevExpress Rich Text Editor
Check for spelling errors within the DevExpress RTF Editor.
DevExpress Rich Text Editor
The DevExpress ASP.NET Subscription ships with a full-featured RTF Editor. As you would expect, the DevExpress Spell Check control fully supports our RTF Editor - making it easy for you to integrate powerful word processing functionality in your next web project.
DevExpress HTML Editor
Check for spelling errors within the DevExpress HTML Editor.
DevExpress HTML Editor
The DevExpress ASP.NET Subscription ships with a full-featured HTML Editor. Spell checking is fully supported - making it easy for you to integrate powerful HTML editing functionality in your next web project.

Buy this product as part of the following subscription packages.

We are so confident in our products and services that we back them with a 60 day no questions asked money back guarantee. If within the first 60 days of ownership you are not satisfied with the capabilities of our tools, you can request a full refund of the amount you paid to DevExpress by writing to clientservices@devexpress.com or by calling +1 (818) 844-3383.

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WinForms Controls
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Office File API (Basic)
Excel Export Library
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Office File API (Complete)
Spreadsheet Document API (XLSX, XLS)
Excel Export Library
Word Processing Document API (DOC, RTF)
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* DevExpress does not include/ship source code for certain products, including CodeRush, TestCafe, and Report Server.

Additional Info

Customizable ASP.NET Themes

The DevExpress ASP.NET Subscription ships with 20+ highly polished themes for your next web application. You can use each of these themes easily, without modification or manipulate them using our free ASP.NET Theme Builder application. See Demo

Sec 508 and Accessibility

The DevExpress ASP.NET Subscription makes it easy to create web applications that meet government regulations regarding web accessibility. Sec 508 and Web Content Accessibility Guidelines 1.0 support is available across our entire DevExpress ASP.NET Product Line. Read more

Touch and Mobile Device Enabled

Deliver elegant, touch-enabled ASP.NET and MVC web applications using the platform you know and love. The ASP.NET Subscription helps you leverage your current investments and address customer needs via a comprehensive range of WebForms Controls and MVC Extensions that support touch on iOS Safari, Android and Internet Explorer 10.

AJAX Enabled with Rich Client-Side API

Each and every control provides an ability to update the control using callbacks, eliminating the need to re-load the entire page. This callback functionality allows you to optimize how data is transferred to the client. We also offer you a comprehensive client-side API, along with the ability to handle events on the client side. With our ASP.NET components, you have full control over the control's behavior via client functions.

Fast and Lightweight with XHTML Compliance

DevExpress controls are optimized for exceptional performance and efficient memory use without the loss of functionality or features. DevExpress ASP.NET controls also support optimizations like HTML compression, callbacks, image sprites, resource caching and sharing. Key ASP.NET controls in this subscription use semantic HTML to keep output clean and minimal. The semantic HTML markup means that web pages are lighter and faster, more search engine friendly and provide improved accessibility for screen readers.

Straightforward Localization

All DevExpress ASP.NET AJAX Controls can be easily localized using satellite resource assemblies. DevExpress delivers satellite assemblies for a large variety of languages and cultures. To make it easy to get started, resource files for four cultures are included to our installation: German, Japanese, Russian, and Spanish. If you need to modify our shipping resources or create satellite assemblies for a different language, simply use our Online Localization Service, a free tool for our active ASP.NET subscribers. Online Localization Service