WYSIWYG editing Image gallery upload Content templates
Feature Overview

RichTextBox is a professional WYSIWYG editor Tag Helper for ASP.NET Core that delivers a complete content-authoring experience out of the box. With a single tag, you get rich-text formatting, tables, image management, templates, and more — ready for production forms, CMS pages, and email composers.

WYSIWYG Editing

Full rich-text editing with headings, inline formatting, lists, tables, links, and embedded media.

Image Gallery

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

Content Templates

Insert professionally designed starter blocks — invoices, newsletters, layouts — with one click.

Context Menu

Right-click any table, image, or link for quick contextual actions like merge, split, and edit.

Autosave & Drafts

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

Multiple Skins

Ship with the default or Office 2007 Blue skin, or customize the look to match your application brand.

Try the Full Editor

The editor below is loaded with the full toolbar and realistic sample content. Edit the text, insert images, modify the table, or switch to source-code view to inspect the HTML.

Note

This demo uses the full toolbar preset, which includes every built-in button. For most projects you will want the default toolbar or a custom configuration. Explore the Toolbar demos in the sidebar to see all available presets and learn how to build your own.

<richtextbox
    name="OverviewEditor"
    toolbar="full"
    width="100%"
    height="500px"
    html="<h2>Your content here...</h2>" />