M
M

MarkLayer

 Like

Free, open-source tool to draw, highlight, and comment on any live webpage, then share one link for real-time collaboration.

Drawing, comment, and element inspector tools on a live webpage

Cost / License

Platforms

  • Online
  • Google Chrome
Real-time collaborative annotation with threaded comments
MarkLayer alternatives  
0likes
6alternatives
0articles
Save

Features

No features, maybe you want to suggest one?

 Tags

Highlights All activities

MarkLayer News & Activities

Recent activities

MarkLayer information

AlternativeTo Category

Web Browsers

GitHub repository

  •  30 Stars
  •  5 Forks
  •  2 Open Issues
  •   Updated  
View on GitHub

Popular alternatives

View all
MarkLayer was added to AlternativeTo by VRUS on and this page was last updated .

No comments or reviews, maybe you want to be first?

Official Links

AppStores & Other Links

What is MarkLayer?

MarkLayer is a free, open-source web annotation tool. Draw, highlight text, and pin threaded comments directly on any live webpage, then share a single link so anyone can see your annotations in real time (live cursors, synced drawings, voice/video chat via WebRTC). No accounts, no sign-up, no email required. Available as a web app (paste any URL) and as a Chrome extension for sites the web app cannot embed. Includes an element inspector that captures CSS selectors and AI-ready context, plus an MCP server (marklayer-mcp) so AI coding agents like Claude Code can resolve annotations as a work queue. Self-hostable on Cloudflare Workers. Annotations auto-expire after 90 days of inactivity.