BrightApp Word Highlighter

Description

BrightApp Word Highlighter helps you mark important words and phrases while writing in the block editor. Highlights are visual only in the editor — they do not rewrite your post content.

Features

One word library with two color categories (Yellow, Green)
One link library for quick reference while editing
Per-post control — choose which library words are active on each post or page
Visual-only editor highlights (overlay-based; post content stays untouched)
Frontend highlight toggle in the WordPress admin bar (logged-in editors only)
Toggle state persists across page navigations (sessionStorage)
Simple category tags for organizing library entries

Free and open source

This plugin is free software licensed under GPLv2 or later. Learn more about Bright App Studio at https://brightappstudio.com.

A Pro add-on with additional libraries, colors, and CSV import/export may be offered on brightappstudio.com. The WordPress.org version remains fully usable and is not trialware.

Installation

Upload the brightapp-word-highlighter folder to /wp-content/plugins/, or install the plugin through the Plugins screen in WordPress.
Activate the plugin through the Plugins screen.
Go to Settings Word Highlighter to build your word and link libraries (administrators).
Edit any post or page — open the Word Highlighter panel in the sidebar and select the words you want active.
View the published post while logged in as an editor — use the Highlights button in the admin bar to toggle highlights on or off.

FAQ

Who can manage the global libraries?: Site administrators (manage_options) can edit word and link libraries under Settings Word Highlighter. Editors can still enable highlights per post from the sidebar panel.
Do highlights change my post content?: No. In the editor, highlights are drawn as overlays and do not modify Gutenberg text. On the frontend, temporary highlight marks are added only for logged-in users who can edit posts, and they are not saved into the post.
Where can I find support or more products?: Visit https://brightappstudio.com.
Will there be a premium version?: Yes — as a separate Pro add-on on brightappstudio.com with extra libraries, colors, and CSV tools. This free plugin on WordPress.org stays complete under the GPL and is not trialware.