PostItUp: A Free, Real‑Time Sticky‑Note Board for Retros

Description and use

PostItUp is a free, browser‑based sticky‑note board that works in real time without sign‑up, eliminating the 10‑15 minutes teams spend fixing Miro and enabling immediate collaboration.

Problem

Teams using Miro for retros spend 10–15 minutes fixing board access, tutorials, and accidental deletions, wasting valuable meeting time.

Outcome

PostItUp reduced retro setup time from 10–15 minutes to near zero, enabling teams to focus immediately on feedback. The tool’s simplicity, real‑time collaboration, and zero‑account barrier improved engagement and reduced friction.

Workflow

• Create a board and choose a canvas mode (free, grid, or ruled).
• Share the board link via Slack or embed it on a webpage.
• Participants click the link, double‑click on the canvas to add notes, optionally choose a color and name, and press "Pin it".
• Notes appear instantly for all viewers; users can drag notes, upvote, or delete them.
• Board owners can clear the board or delete any note from settings.
• Optional: embed the board using an iframe, script tag, or future React component for seamless integration.

Evidence

We spend the first ten to fifteen minutes of every retro just fixing the board.

Source

PostItUp is a real‑time collaborative sticky note board that runs in the browser. It looks like an actual physical corkboard. Anyone can drop a note without creating an account.

Source

Supabase Realtime is a WebSocket layer on top of Postgres. You subscribe to change events on a table with filters, and Supabase sends you the payloads when rows change.

Source