Out-of-the-box XHTML-enabled Output
RadEditor for ASP.NET AJAX outputs XHTML-compliant content across all major browsers. It also provides real-time XHTML validation by sending HTML content for validation to the W3C service, and returning a compliancy report right within the editor interface. The integrated validation module is also available as a validation dialog.

Unmatched Loading Speed and Performance
RadEditor for ASP.NET AJAX puts an end to the "functionality vs speed" trade-off. The unique "load as needed" processes will only load the code on client browsers for the features that are being used. This minimalist script size results in tremendously swifter page loading. In addition, the editor's CSS Sprites-based semantic rendering leads to even more optimized loading speed and customization through simple CSS.

Cross-browser Support
Following a long tradition of industry best cross-browser support, RadEditor continues to offer even better level of quality and compatibility. The component supports all major browsers, including Opera and Safari for Mac, which makes it the richest text editor with the widest cross-browser support on the market. In addition, the editor produces identical content in MS Internet Explorer and Mozilla.

Single-file, Drag-and-drop Deployment
RadEditor for ASP.NET AJAX takes full advantage of .NET embedded resources, enabling you to deploy the Editor with a single assembly file.

Extended Functionality through Integrated Controls
RadEditor is designed to accommodate integrated controls, loaded on demand to deliver optimal loading speed. The editor features a RadSpell tool for superior spell-checking, a RadWindow component for creating dialogs and a RadUpload tool for fast and easy uploading. All of these tools are now integrated in the RadEditor for ASP.NET AJAX control but are also available as separate controls.

Microsoft Word-like Spell-checking
RadEditor for ASP.NET AJAX comes with a full-featured multilingual spell-checker (technically, a separate component called RadSpell). You can choose between a dialog-mode and an inline AJAX spell-checker. You can check your spelling asynchronously and all your mistaken words will be highlighted inline.

HTML Mode and Code Indentation
RadEditor for ASP.NET AJAX features an enhanced HTML mode, which displays nicely indented code - easier to read and modify.

Seven Ways for Pasting from Word
RadEditor offers a number of features that help the user paste formatted content from Microsoft Word and other applications, and apply different types of format stripping:
1. Strip Word-formatting on paste
2. Strip Word-formatting on paste (cleaning fonts and sizes)
3. Forced format stripping on Paste
4. Word Content in Clipboard Interception
5. Strip Word-formatting after paste
6. Paste plain text
7. Paste as HTML

Multilevel Undo/Redo with Action Trails
RadEditor for ASP.NET AJAX provides desktop-like usability and control thanks to its multilevel Undo/Redo feature with action trails. It allows past actions to be reviewed and reversed, just like in Microsoft Word.

Highly Intuitive Tools
- AJAX-based File Browser Dialogs: RadEditor for ASP.NET AJAX features rich and intuitive dialogs for managing Image, Flash, Windows Media, and Documents that include features like file sorting, preview, zoom, create and delete folders, etc. All four dialogs are AJAX-based to load files and folders on demand. This feature greatly improves the editor's usability and performance, making it the ideal tool for enterprise applications with large file repositories.