WYSIWYG editing Image gallery upload Content templates
Comprehensive Feature Set

Everything you need to build
rich editing experiences

A professional WYSIWYG editor for ASP.NET Core with 21+ years of refinement. Clean HTML output, image management, templates, and more.

Editing & Formatting

Powerful content authoring

Full rich-text editing with clean HTML output, advanced table management, and intuitive formatting controls.

WYSIWYG editing

Full rich-text editing with headings, inline formatting, lists, tables, links, and embedded media. What you see is what you get.

Cleanest HTML output

Outputs well-formed XHTML 1.0 or HTML 5. Built from the ground up to produce clean, semantic markup.

Advanced table manager

Create and modify tables with cell merge, split, row/column operations. Set borders, alignment, and spacing with context menus.

Paste from Word

Automatically cleans unnecessary markup when pasting from Microsoft Word, resulting in faster-loading, cleaner pages.

Find and Replace

Built-in dialog to locate and modify text with search criteria, replacement text, and case sensitivity options.

Unlimited undo/redo

Custom implementation safely handles complex operations including table cell merge and column deletion.

Media & Content

Rich media management

Upload images, browse galleries, insert videos, and manage templates from built-in dialogs.

Image gallery

Browse server folders, drag-and-drop upload, resize inline, and insert images from the built-in gallery with search and folder creation.

Advanced file upload

Integrated high-performance upload. Select multiple files at once with client-side validation of file size and type.

Insert video

Easily embed YouTube, MP4, and audio content into your HTML documents with the built-in video dialog.

Content templates

Insert professionally designed starter blocks — invoices, newsletters, layouts — with one click from the template gallery.

Downloadable files

Upload document files and create links to downloadable files like ZIP, PPT, PDF, and more from your HTML content.

Emoji & special characters

Insert emoji and special characters from built-in dialogs with categorized browsing and search.

Customization & Integration

Built for developers

Flexible APIs, configurable toolbars, multiple skins, and seamless ASP.NET Core integration.

Easy implementation

Add rich editing to your app with a single Tag Helper. Works with Razor Pages and MVC out of the box.

Configurable toolbar

Flexible toolbar with presets (default, full, basic) or hand-pick buttons. Supports multi-row layouts and right-aligned groups.

CSS-based skins

Ship with default, gray, blue, or Office 2007 Blue skin. Customize the look by modifying CSS classes to match your brand.

Powerful JavaScript API

Comprehensive client-side API with execCommand, getHTML, setHTML, and a rich set of events for full control.

Extensible plugins

Rich plug-in development environment. Create custom dialogs, toolbar buttons, and extend editor functionality.

23 languages

Multi-language support via external JavaScript files. Switch language with a single property or create a new one in minutes.

Safety & Quality

Production-ready reliability

Autosave drafts, content validation, accessibility compliance, and security controls built in.

Draft autosave

Automatically persist drafts to local storage so users never lose work, even after a page refresh or accidental navigation.

Security & access control

Content filtering with white and black lists. Control HTML elements, attributes, and limit formatting options.

MaxHTMLLength / MaxTextLength

Limit user input length to protect your database from exceeding allowed field sizes. Real-time character counting.

Design, HTML & Preview

Create content in WYSIWYG view, work directly in HTML source mode, or preview how content will display on a web page.

Extremely fast loading

Only loads necessary scripts. Clean, compact, and optimized for performance while remaining powerful and feature-rich.

W3C WAI & Section 508

Accessibility settings ensure compliance with Section 508 so people with disabilities can have full access to your content.

And Much More

Every detail covered

Context menu controls
Format Painter
Full-screen editing
Enter key configuration
Absolute vs. relative paths
CSS text indenting
Custom placeholder tags
External CSS files
HTML code indentation
Tag path inspector
Code snippets
Print content
License file validation
Cross-browser support
Paste formatting modes

25,000+

Customers worldwide

21+

Years of development

60+

Countries served

98

Live demos

Ready to get started?

Download the fully functional 30-day trial or purchase a perpetual license today.