Local keyword highlighting for Chrome and Edge

See the words that matter

When a page is long, Fast Keyword Highlighter marks words from your own lists in color, so you can spot what matters and keep your place. Free on Chrome and Edge. The page stays on your device.

Add to Chrome – freeAdd to Microsoft Edge

No account. No network requests from the extension. Privacy policy.

See it work

The same screens shown on the Chrome Web Store. The sample posting is a demo page; the highlighter UI is the product.

A job posting with skills in yellow, must-have terms in teal, and watch-out terms in pink
On a job posting, three lists mark skills, must-haves, and terms to watch, each in its own color.
Extension popup listing 24 highlights, the top hit words, and next and previous buttons
The popup shows how many highlights are on this page, which words hit most, and buttons to jump to the next or previous match. Pause this site from here.
Options page with two keyword lists, colors, whole-word and case options, and a sites field
Each list has its own color, on/off switch, whole-word and case options, and a field to limit it to certain sites.
Paused sites, import from a backup or text file, export backup, and keyboard shortcuts
Paused sites, import from another highlighter backup or a text file, a JSON export, and the default shortcuts.

Who it’s for

Recruiters and job seekers

Scan a long posting and see skills, must-haves, and watch-outs in different colors, so you can stay with the sentence you are reading.

Content reviewers

Keep sensitive terms on a list and notice them as you read, instead of hunting for them line by line.

SEO and content marketers

Check whether the keywords you care about show up, and which of them show up most on the page.

Researchers

Move through a dense page by jumping to the next match, and come back to the sentence you left.

What you can do

Color-coded lists

Each list has its own color, on/off switch, whole-word match, and case-sensitive option.

Site limits and pause

Limit a list to sites, with subdomains, path prefixes, and * wildcards. Pause a site from the popup or with paused-site rules. Single-page apps are checked again when the URL changes.

Import and export

Import lists from another highlighter’s backup, plain text, or CSV. Imported lists are appended. Export a full JSON backup of your settings and lists.

Jump, with shortcuts

The toolbar badge counts highlights. The popup lists the top hit words. Jump with the popup buttons, or with Alt+Shift+N and Alt+Shift+P. Alt+Shift+H toggles highlighting. Change the shortcuts in the browser.

Local permissions only

Two permissions: storage, for lists and settings on this device, and activeTab, for the current site name and an on-page hit count. Content scripts run on http and https pages to highlight locally. Inputs, editable regions, and code blocks are skipped by default. Open Shadow DOM is supported.

Three steps to start

  1. 1

    Pin the extension and open the popup, then choose Manage lists.

  2. 2

    Add a list, paste keywords, pick a color, and save.

  3. 3

    Optional: set “Only on these sites”, or pause the current site from the popup.

A lab example from the store listing

These figures are the lab example printed on the Chrome Web Store listing: a ~200,000-word test page, 1,000 keywords, about 350 ms to finish highlighting, a longest task near the page-load baseline (~83 ms), scroll around 144 fps, and 0 long tasks when content was appended. They describe that test. They are separate from any count of people using the extension.

Store listing lab card with example timings for 1,000 keywords on a test page
The store listing’s lab card, restating that example test.

Questions

Do I need an account?
No. Install it, pin the icon, and open the popup to add a list. There is no sign-in.
What about privacy and permissions?
The extension works on your device. It does not make network requests, and it does not upload the page or your lists. It asks for two permissions: storage, to save lists and settings locally, and activeTab, to show the current site name when you pause and to request a hit count for the tab you opened. Content scripts run on http and https pages only, to read visible text and highlight matches locally. Read the privacy policy.
Can I limit a list to some sites, or pause highlighting?
Yes. Each list can be limited to specific sites, including subdomains, path prefixes, and * wildcards. Leave that field empty and the list runs on every site. Pause the current site from the popup, or keep paused-site rules in settings. If a single-page app changes its URL, those rules are checked again.
Can I import lists from another highlighter?
Yes. Import word lists from another highlighter extension’s backup, from plain text, or from CSV. Imported lists are added onto the lists you already have. You can export a full JSON backup of your settings and lists.
What are the shortcuts?
Alt+Shift+H turns highlighting on or off. Alt+Shift+N jumps to the next match, and Alt+Shift+P jumps to the previous one. Change them on the browser’s extension shortcuts page. The popup also has next and previous buttons.

Add it to your browser

Free. Your lists stay in this browser.

Add to Chrome – freeAdd to Microsoft Edge