MarkLayer

Draw & comment on any webpage — share one live link

10 followers

Draw & comment on any webpage — share one live link

10 followers

Annotate any webpage with drawings, highlights, threaded comments, and arrows — then share one link. Anyone who opens it sees your annotations live, with real-time cursors and synced updates via WebSocket. Voice and video chat included via WebRTC. No account required. Open source. Auto-expires in 30 days.

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MarkLayer launches

Launch date

MarkLayerAnnotate any webpage — now with an MCP server for AI agents

Launched on August 27th, 2026

MarkLayerDraw & comment on any webpage — share one live link

Launched on March 24th, 2026