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guideImage text alternative

Image text alternative (alt attribute) is essential for both accessibility and SEO. It helps screen reader users navigate and understand the document and provides meaningful image description to search engine crawlers.

CKEditor 5 provides support for alternate image text using the The ImageTextAlternative plugin. The alt attribute is supported by both block and inline images in the editor output data:

<!-- Block image markup -->
<figure class="image">
    <img src="..." alt="Description of an image">
    <figcaption>...</figcaption>
</figure>

<!-- Inline image in a paragraph -->
<p>Some text followed by an image <img src="..." alt="Description of an image">.</p>

This feature follows the markup proposed by the Editor Recommendations project.

# Demo

You can see the demo of a WYSIWYG editor with the base image feature enabled below. Click on the images to activate the image toolbar and use the contextual toolbar button Alternative text to edit the text alternative.

Location of the most picturesque waterfalls of Iceland

While exploring Iceland one would surely put the wild, unbridled nature on the top of the sightseeing list. But where should one start? Considering this amazing island brings together fire with ice we may expect water landscapes a nice starting point.

Due to the mountainous terrain, plenty of rivers encounter numerous obstacles while running their waters. Where boulders cross the current or the rock sharply end, the wild waters of Icelandic streams, brooks, creeks and rivers will rapidly fall forming breathtaking and picturesque waterfalls.

We have chosen a few of those that we deem the most worth visiting for their breathtaking beauty. Plan your round trip carefully, not to miss any of these natural wonders!

Kirkjufellsfoss waterfall
1. Kirkjufellsfoss
Seljalandsfoss waterfall
2. Seljalandsfoss
Skogafoss waterfall
3. Skogafoss
Svartifoss waterfall
4. Svartifoss
Godafoss waterfall
5. Godafoss
Godafoss waterfall
5. Godafoss

# Installation

This feature is available in all ready-to-use editor builds. If your integrations uses a custom editor build, check out the image features installation guide to learn how to enable this feature.

# Common API

The ImageTextAlternative plugin registers:

We recommend using the official CKEditor 5 inspector for development and debugging. It will give you tons of useful information about the state of the editor such as internal data structures, selection, commands, and many more.

# Contribute

The source code of the feature is available on GitHub in https://github.com/ckeditor/ckeditor5/tree/master/packages/ckeditor5-image.