Submit

Browse every extension by category.

All categories

Start from the job you need done.

All use cases

Starter kits for the way you work.

All professions

Extensions that upgrade the sites you already use.

All websites

Side-by-side verdicts and honest alternatives.

All comparisons

Free, single-page tools. No sign-up, most run right in your browser.

Chrome & browser
Privacy tests
Developer utilities
Images & media
Website inspector
Device checks
AI & productivity
All free tools

How-tos, safety explainers and data studies.

All guides
Submit an extension

↑↓ move · ↵ open · Tab filter · Esc close

Keywords Highlighter Chrome extension

Keywords Highlighter lets you set a list of words and automatically highlights them wherever they appear on a page. It's best for research, proofreading, or scanning long pages for specific terms. The catch: it only highlights, it doesn't summarize or explain the surrounding content.

  • PriceFree
  • CategoryProductivity
  • Works inChrome, Edge, Brave (desktop)
  • ✓No account needed

Last checked against the Chrome Web Store listing · Independent, not affiliated with Google

Add to Chrome See alternatives

Pros

  • highlights multiple chosen keywords automatically
  • works across most web pages you visit
  • simple, single-purpose tool with no extra clutter

Cons

  • only highlights text; it doesn't summarize or filter content
  • you need to maintain your own keyword list
  • highlighting styling options are limited to what the extension provides

Best for

  • researchers scanning long articles for specific terms
  • proofreaders checking for repeated or flagged words
  • quickly spotting keywords across a page without reading every line

Skip it if

  • users who need AI summaries or explanations, not just highlighting
  • sites where the extension is blocked from running

Key features

  • custom keyword list you define
  • automatic highlighting on page load
  • works across most websites
  • helps you find or skip information quickly

What Keywords Highlighter does

Keywords Highlighter scans the pages you visit and highlights any words or phrases you've added to its list. It's aimed at making it easy to find or skip specific information while reading, whether that's scanning search results, documentation, or long articles for terms that matter to you.

Keywords Highlighter free vs paid

The Chrome Web Store listing describes Keywords Highlighter as a straightforward highlighting tool without mentioning separate paid tiers. Its core function, highlighting a custom keyword list on web pages, is the extension's full feature set as listed.

Is Keywords Highlighter safe?

To highlight text, the extension needs to read the content of the pages you visit and inject highlighting styles into them. That's a standard requirement for any text-highlighting extension, so weigh it against how often you plan to use the tool.

Featured in

Keywords Highlighter: FAQs

Is Keywords Highlighter free?

The Chrome Web Store listing presents it as a straightforward highlighting tool without describing separate paid tiers.

How do I use Keywords Highlighter?

Install it, open its settings, add the words you want highlighted, then browse normally; matching text is highlighted automatically.

Does Keywords Highlighter work on every website?

It's designed to work across most web pages, though some sites with restrictive scripts may limit how extensions modify their content.

Can I highlight multiple keywords at once?

Yes, you can add several keywords to your list and the extension highlights each one wherever it appears on a page.

What are alternatives to Keywords Highlighter?

Other text-highlighting and find-in-page extensions offer similar keyword highlighting; compare how easily each lets you manage your keyword list.

Can I use Keywords Highlighter for proofreading?

Yes, adding words you want to flag, such as repeated phrases, lets you spot them quickly while reviewing a document or page.

Why isn't a keyword getting highlighted?

Check that the keyword is spelled exactly as it appears on the page and that the extension is enabled for that site.

Does Keywords Highlighter change the page's text?

No, it adds visual highlighting on top of the existing text without altering the underlying content.

Can I edit my keyword list after adding it?

Yes, you can open the extension's settings at any time to add, remove, or update the keywords it highlights.

Does Keywords Highlighter slow down browsing?

Highlighting runs as pages load, and for typical keyword lists this shouldn't noticeably affect browsing speed.