Show HN: Needed instant realtime whiteboard for meetings so I built it in 1 day

Category: devtools

Tags: collaboration, whiteboard, realtime, no-signup

Score: 4.3/10 (Innovation: 3, Technical: 3, Documentation: 4, Utility: 7)

cnvs.app is a zero-signup, collaborative whiteboard built for instant sharing during virtual meetings. It's interesting because it solves a specific pain point—quick visual collaboration in Zoom/Teams/Slack—with extreme simplicity and no friction.

Target audience: remote teams, educators, product managers, backend devs, frontend devs

Repository: https://cnvs.app/

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