Comparison

HTMLAnnotate vs Marker.io

Marker.io sends visual bug reports straight into tools like Jira, Linear and GitHub. HTMLAnnotate is for gathering feedback and approvals on a page, before or after launch, with nothing installed.

Last checked 12 November 2026. Details about Marker.io come from its public website and independent reviews, and can change. Check marker.io for the latest.

The short answer

Marker.io is a bug-reporting tool for QA and development teams that live in an issue tracker. HTMLAnnotate is a feedback tool for designers, marketers and clients. They solve different problems, and some teams use both.

Pick HTMLAnnotate if

  • You want client feedback and approvals, not developer bug reports
  • You don't want a widget on the site
  • You want a free plan or a lower price

Pick Marker.io if

  • Reports must land directly in Jira, Linear or GitHub
  • You want console logs and network details for debugging
  • QA testers report issues on production sites

What each one looks like

Marker.io adds a feedback widget to your site and turns each report into a ticket. HTMLAnnotate gives you a review link where comments stay together on the page.

Marker.io homepage
Marker.io's homepage, captured 12 November 2026.
HTMLAnnotate review link with a comment thread open on a headline, showing a suggested text edit, labels, priority and a reply
HTMLAnnotate: a comment pinned to a headline, with a suggested text edit, a label, a priority and a reply.

HTMLAnnotate opens the page itself, not a screenshot of it. Reviewers click the heading, image or button they mean and type. Each comment is pinned to that exact element and numbered on the page.

Pricing

Marker.io's pricing page lists Starter at $39 a month and Team at $149 a month, both billed yearly, with Business on custom pricing. There is a free trial and no free plan.

Marker.io

No free plan (free trial available). Starter about $39 a month billed yearly ($59 monthly) for 3 seats; Team about $149 a month billed yearly ($199 monthly) for 15 seats; Business custom.

HTMLAnnotate

  • Free: 3 projects with unlimited pages, comments and reviewers; links last up to 14 days.
  • Pro: $10 a month, or $8 a month billed yearly; you plus one teammate; links never expire.
  • Team: $20 a month, or $16 a month billed yearly; up to 10 people; links never expire.
Marker.io pricing page
Marker.io's pricing page, captured 12 November 2026. Prices may have changed since.

If your goal is client sign-off rather than developer tickets, HTMLAnnotate costs much less. If tickets in Jira are the goal, Marker.io is the specialist.

Features side by side

A quick view of what each tool covers, from public information checked on 14 November 2026. Sources are under the table.

FeatureHTMLAnnotateMarker.io
Free planYesNo
Reviewers need an accountNoNo for widget reports; invited guests sign in
Code or extension on your siteNoYes
Separate desktop, tablet and phone commentsYesNo view switcher; reports from a real device record its screen size
Live sites with scripts and animationsYesIts widget runs on your real site; each report is a screenshot
Upload a single HTML fileYesNo
Suggested text editsYesNo sign of it in its docs
ApprovalsYesNo sign of it in its docs
@mentions with emailYesYes
Labels and priorityYesA fixed priority scale; labels come from a linked tool such as Jira
AI-ready brief of commentsYesAn MCP connection on all plans; no one-click brief
CSV exportYesYes, on Team and up
Integrations (Jira, Slack and similar)Not yetYes
PDF and image reviewPDFs (not images)No

Sources: Marker.io’s own help docs, pricing and feature pages, its Chrome Web Store listing where it has one, and user reviews and forum threads, checked on 14 November 2026. “No sign of it” means we found nothing in its docs, pricing or reviews. Main pages used: help.marker.io, marker.io, help.marker.io (2), marker.io (2), help.marker.io (3), help.marker.io (4), marker.io (3), help.marker.io (5). Features change: check Marker.io’s site before you decide, and tell us if something here is out of date.

Where Marker.io is strong

  • Deep integrations with issue trackers.
  • Console logs, network requests and session details for debugging.
  • A widget testers can use on any page of a live site.

Where HTMLAnnotate is different

  • Phone feedback stays on the phone. Every review link has Desktop, Tablet and Mobile views, and a comment left in one view only shows in that view. A note about the mobile menu never lands on the desktop layout.
  • Live pages, not frozen copies. Imported sites run with their own scripts, so animations, sliders and menus work while people review.
  • Made for AI-written pages. Upload the HTML file ChatGPT or Claude wrote, collect comments, then press Copy for AI to turn them into a brief the AI can act on.
  • Small-team pricing. Pro is $8 a month billed yearly, with links that never expire. Reviewers are always free.
HTMLAnnotate in Mobile view with a phone-only comment open
HTMLAnnotate in Mobile view. This comment only shows on the phone layout.

The reviewer experience

Marker.io reporters use a widget on your site or an extension. On HTMLAnnotate, reviewers only need the link.

On HTMLAnnotate, a reviewer opens the link, clicks anything on the page and types. The first time, they give a name and an email so you know who said what. After that they comment on every page you send. They can reply to threads, suggest exact new wording, tag teammates with @, and press Approve when the page is right.

Setup and workflow

With Marker.io

  1. Install the Marker.io widget or extension.
  2. Testers report issues with screenshots.
  3. Reports become tickets in your issue tracker.

With HTMLAnnotate

  1. Paste the page address (live or staging) or upload an HTML file at htmlannotate.com/new.
  2. Copy the review link and send it to your client or team.
  3. Read every comment on the manage page, reply, resolve, and export or Copy for AI when you are ready to make changes.
HTMLAnnotate manage page listing every comment, reviewers, approvals and Copy for AI
The manage page: every comment, who left it, approvals, Copy for AI and CSV export.

Switching to HTMLAnnotate

If you only used Marker.io for client feedback, remove the widget and send HTMLAnnotate review links instead. Keep Marker.io if your developers rely on its tickets.

  1. Sign in at htmlannotate.com with Google or an email code.
  2. Paste the address of each page you are reviewing. There is nothing to install or remove from your site.
  3. Send the new review links. Reviewers need no account.
  4. If you work with a team, create a team on the Team page (Pro or Team plan) and share projects with it.

Questions

Is HTMLAnnotate a Marker.io alternative?

For feedback and approvals, yes. For bug reports into an issue tracker, Marker.io is built for that job.

Can I send HTMLAnnotate comments to developers?

Yes. Copy for AI creates a brief for ChatGPT, Claude or Cursor, and you can export every comment as a CSV.

Does HTMLAnnotate need a script on my site?

No. It loads a review copy of the page through a link, so nothing changes on your site.

Does HTMLAnnotate capture browser details?

Yes: browser, operating system and window size for every comment.

Is there a free plan?

Yes: 3 projects, with unlimited pages and reviewers.

Try it on a real page. Free, and your reviewers never need an account.

Import a page