Kanto Labs
Keylamp icon

Browser extension

Keylamp: highlight multiple words at once

Stop pressing Ctrl+F one word at a time. Keylamp highlights every keyword you care about on any website, each in its own color, with a live count for each one.

FreePro: $12 once, no subscription
Chrome Web Store · coming soon Edge Add-ons · coming soon Firefox Add-ons · coming soon
Keylamp highlighting the words senior, remote, Lisbon, visa sponsorship and salary in different colors on a job listing, with a count for each word in the popup

Who it's for

Built for people who scan a lot of text

Job seekers and recruitersSpot “remote”, “visa sponsorship”, “salary” or the skills you need in every job description.
Anyone reading contractsFlag “auto-renew”, “non-refundable”, “indemnify” or “arbitration” before you agree.
Researchers and studentsTrack your topic terms across papers and articles.
Sales, support and complianceWatch for product names, competitors or risky phrases.

Why it's different

The page is never modified

Many multi-highlight tools rewrite the page's HTML to paint colors, which can break layouts, interfere with forms and change what you copy. Keylamp uses the browser's built-in CSS Custom Highlight API instead.

Private by design

  • Runs only when you click it, use a shortcut, or on sites you explicitly allow
  • Your lists are stored only in your browser
  • No analytics, no ads, no tracking

Pricing

Free, or Pro for one payment

Free

$0no account, no time limit
  • Up to 3 saved keyword lists, unlimited words in each
  • Quick words: type a few words in the popup and see them highlighted instantly
  • 8 automatic colors and a live match count for every word
  • Jump to the next / previous match, or click a word to jump to it
  • Whole-word and match-case options, multi-word phrases
  • Right-click selected text → “Highlight this everywhere on this page”
  • Keeps up with pages that load more content as you scroll
  • Shortcuts: Alt+Shift+H highlight / clear, Alt+Shift+. and Alt+Shift+, next / previous

Keylamp Pro

$12one payment, no subscription
  • Everything in Free
  • Unlimited keyword lists
  • Auto-highlight: pick the sites where your lists light up automatically
  • Regular-expression patterns (prices, dates, ticket numbers)
  • Import and export lists (JSON / CSV)
  • Custom list colors
Get Keylamp Pro on Gumroad

Unlocked with a license key. The key is verified with the seller's license API; nothing else leaves your browser.

FAQ

Questions

Which browsers does Keylamp support?

Chrome, Microsoft Edge and Firefox (desktop). Store listings are coming soon.

Does it change the web page?

No. Keylamp uses the browser's built-in CSS Custom Highlight API instead of rewriting the page's HTML, so text stays selectable, forms stay editable and sites keep working.

What does Pro cost?

$12, one payment, no subscription. It is sold through Gumroad and unlocked with a license key.

Does Keylamp collect any data?

No. Your lists are stored only in your browser. No analytics, no ads, no tracking. The only network request is verifying a Pro license key, if you buy one.