Bottom line: Choose MarkLayer for fast, sign-up-free visual feedback on any live page with real-time live cursors. Choose Markup.io if you need persistent project workspaces, version tracking, and a team account tied to client deliverables.
By Vadym Rusin · Last updated: April 2026
MarkLayer and Markup.io are both visual feedback tools for live websites. The core difference: MarkLayer is a free Chrome extension with no sign-up and works on any page in real time, while Markup.io is a web app that organizes feedback into project-based reviews tied to a team account.
| Feature | MarkLayer | Markup.io |
|---|---|---|
| Price | Free, no tiers, no paywall | Free tier with limits; paid plans for teams |
| Sign-up required | No | Yes |
| Works on live websites | Yes. Annotate the actual live page | Yes. Imports URL into a project |
| Real-time live cursors | Yes | No (comment-based) |
| Drawing tools | Freehand, shapes, arrows, lines | Limited drawing; primarily pin comments |
| Recipient install | Not required. Share link opens in browser | Not required. Link-based reviewing |
| Open source | Yes | No |
| Browser | Chrome / Chromium | Web app (no extension required) |
| Best for | Quick visual feedback on any page | Agency project reviews with version tracking |
Markup.io is a project-based feedback tool from Pastel for reviewing live websites and PDFs.
MarkLayer is a free, open-source Chrome extension that lets you annotate any live webpage with drawings, comments, arrows, and highlights, then share a single link so anyone can view the annotations without installing anything. There is no account, no paywall, and no trial period.
MarkLayer is free, requires no sign-up, and works on any webpage. Recipients of your share links don't need to install anything.
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