Gutenberg is WordPress's built-in editor for building pages out of 'blocks' - drag-and-drop chunks like a paragraph, image, button, or gallery. It's how you add and arrange content on a modern WordPress site.
Also known as: Block editor, WordPress editor
In plain English
Gutenberg replaced WordPress's old visual editor. Instead of one big text box, you build pages from blocks - each paragraph, heading, image, button, or embed is its own movable piece you can style and rearrange independently.
Why it matters for your business
It's the default way content gets added to WordPress now, so every content manager and developer works inside it. Knowing how blocks store content matters when pages look broken, when migrating content, or when a page builder and Gutenberg content collide.
When you'll run into it
Every time you edit a page or post. Confusion usually shows up as formatting that won't behave, blocks that won't delete cleanly, or layout that looks different in the editor than on the live page.
Run into this on your site?
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