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Documentation

Integrate and customize Textbox.io.

Developer Guide

API Basics

Learn how to create editor instances and get and set their content.

Customizing the WYSIWYG

Configuring the toolbar, content styles and more.
picture_in_picture

Inline vs Classic

Learn about the two different editing modes.
cloud_upload

Working with Images

Embed images or upload local them to your server.
spellcheck

Spell Checking

Setup your own spelling server.

Supported Browsers

Browsers currently supported by Textbox.io

API Reference

The Textbox.io WYSIWYG JavaScript API starts at the textboxio JavaScript global, all Textbox.io code runs via this object. The textboxio global is available immediately after textboxio.js has finished loading.

Server-Side Components

Textbox.io comes with optional server-side components that enhance the functionality of the WYSIWYG with spell checking and other features. Learn more >