Highlighter · for reviewers & teams
Stop describing the problem in a doc. Mark it on the live page - the buried button, the confusing step, the line that overpromises - add why, and send the markup back as clean Markdown. No screenshots, no tickets, nothing installed.
A real review, on a real page
The Highlighter is running on a sample product page below. It flags a weak call-to-action and a claim that undercuts itself, then it's yours to poke at.
Desktop browsers only. The Highlighter is built for a desktop browser and is not supported on phones or tablets yet: the demo below needs one too.
Press ▶ to watch the review, or dive in: mark any element or line, click it to add a note on why, then open the summary (☰) to see the full set.
Why it beats a doc
Comments in a doc drift from the thing they describe. These don't: they sit on the exact words and elements.
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Highlight the real button, heading, or sentence: not a screenshot of it. The reviewer and the builder see the same spot.
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Every mark can carry a note: "low contrast," "move above the fold," "this overpromises." The fix travels with the flag.
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Select across sections and steps: a confusing sequence gets marked end-to-end, not just at the edges.
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Export the review as Markdown: every flag in page order, notes underneath, with the page URL. Paste it into the ticket or send it straight over.
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Runs on staging, production, a competitor's page: anywhere you can open a URL. Nothing to install for the person reviewing.
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Namespaced and conflict-guarded, light or dark, so it never fights the site you're reviewing.
How to use it
Any live page: staging or production. Click the bookmarklet and the review panel drops in, top-right.
Highlight the elements and copy that need work; add a note on each saying what to change and why.
Export or copy the Markdown and drop it in the ticket, thread, or reply. Every flag, in order, linked to the page.
Give reviewers the bookmarklet. Drag it to the bookmarks bar, or Copy it into a new bookmark's URL. One click on any page starts a review: nothing to install.
Current version: v0.9.12. The chip is a frozen copy, so it does not update itself: open the panel’s settings to see which version you have, and drag a fresh one if it is behind.
Dragging it up or copying it means you accept the Highlighter terms of use. They are short, and they are the whole of it.
Desktop browsers only: a bookmarks bar is a desktop affordance; phone and tablet support is not there yet.
Add once · review any page · done? reload and it's gone. Each reviewer's bookmarklet can carry a personal token so you know whose feedback is whose.
Want to know when a new version lands? The chip you just took is a frozen copy and cannot update itself, and reviewers who were handed it rarely come back to this page. An email is the only way I can tell you. Optional, and the tool works the same either way.
Used only to tell you about Highlighter versions. Not shared, not sold, and not added to anything else. Terms of use and privacy.
Worth asking before you hand it to a room full of reviewers. Yes: it is built and maintained by one person, me, and it changes often enough that the version number on this page is worth checking against the one in the panel.
One page holds all of it: what changed and when, what is known to be broken, what is coming next, and where to send a bug or ask for a feature. It goes to me, and I read it.
The output
Not a wall of screenshots: a tidy Markdown list: each flagged element and line, your note underneath, in the order they appear, with the page URL at the top.
Paste straight into Linear, GitHub, or a thread. Because it's plain Markdown with the source URL, anyone can jump to the exact spot.
Reviewing something of mine? Mark it up and send the whole set back in one go: attributed to you by your token. coming soon
Good to know
No. The reviewer clicks their bookmarklet on the page; nothing is added to the site and nothing is sent anywhere unless they choose to export or send.
Yes: if you can open the page in your browser, you can mark it up. It runs in your session, on whatever you're looking at.
Export or copy the Markdown: every flag in page order with notes and the page URL. A one-click "send to me" is coming, attributed by the reviewer's token.
It's fully namespaced and guarded against page/extension conflicts, and adapts to light or dark, so it stays out of the way of what you're reviewing.