PostItUp

Embeddable, real-time sticky-note board for anonymous brainstorming and feedback, no signup needed.

Webfree

PostItUp is a real-time collaborative sticky-note board for the web, styled to look like paper notes. Anyone with the link can drop a note anonymously with no account, and boards support free-drag or grid layouts, upvotes, and optional star ratings, with real-time sync and GDPR-compliant data export. It's designed for retrospectives, feedback sessions, and group brainstorming, and can be embedded into another page via iframe or script tag.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of PostItUp - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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