Registers a raw html block which uses the ACE Editor. Features include syntax highligting, line numbers, indentation, and HTML validation.
As of April 2026, ACE HTML Block is a WordPress block plugin with 50 active installations and a 5/5 rating from 2 reviews. It has been downloaded 2.9K+ times in total. Requires WordPress 5.0+ and PHP 5.2.4+. Available on WordPress.org since 2019. Last updated 7 years ago — may have compatibility concerns. Top alternative: Spectra Gutenberg Blocks – Website….
Registers a raw html block which uses the ACE Editor. Features include syntax highligting, line numbers, indentation, and HTML validation.
Any HTML markup included in your block will be interpreted and rendered on your user-facing page or post just like the core “Custom HTML” block. This plugin is not for embedding pretty markup on your front-end site, rather it is for those developers that need to include raw HTML in their pages or posts and want to improve the readability of their HTML snippets and have a better in-browser code editing experience.
Create a new block in the editor and look for “ACE HTML Block” in the Formatting section. It has a heart icon.
There (hopefully) may come a time in the future when WordPress introduces…
| WordPress | 5.0+ requiredTested up to 5.1.22 |
| PHP | 5.2.4+ required |
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