Radzen Blazor Components

Radzen Blazor HtmlEditor custom tools

Add your own buttons to the Blazor HTML Editor toolbar with the RadzenHtmlEditorCustomTool tag.

Custom command on Execute event link

In its basic form you create a button and handle the Execute event of the HtmlEditor to implement the command.

Custom tool with template link

You can also specify custom UI via the Template of the RadzenHtmlEditorCustomTool.

Custom dialog link

Create custom editor tools with dialog interfaces for specialized editing features.

Frequently asked questions

How do I create a custom tool in the Blazor HTML Editor?

Declare a RadzenHtmlEditorCustomTool inside the editor and handle its Execute callback to run your command on the selected content.

Radzen Blazor Newsletter

Get an email when new components and releases ship.

All the tools in one place

Save Hours on Every Project

With Radzen Blazor subscription you get the full toolkit, including:

support

Dedicated support backed by proven expertise

palette

Premium themes and theme editor

widgets

Ready-to-use UI blocks

dashboard_customize

Complete app templates

format_shapes

Visual design-time-experience

Radzen Blazor Studio

Radzen Blazor Components, © 2018-2026 Radzen.
Source Code licensed under MIT

Demos Configuration

Premium Themes

  • Material 3
  • Material 3 Dark
  • Material 3 Expressive
  • Material 3 Expressive Dark
  • Fluent
  • Fluent Dark

Free Themes

  • Material
  • Material Dark
  • Standard
  • Standard Dark
  • Default
  • Dark
  • Humanistic
  • Humanistic Dark
  • Software
  • Software Dark
An error has occurred. This app may no longer respond until reloaded. Reload 🗙