Online brainstorming
Pinnarium is a digital pinboard for team brainstorming – free and without sign-up. Everyone writes their ideas on digital sticky notes, on a phone or laptop. The notes snap into clear sections, get grouped into themes at the push of a button and are rated with sticky dots.
On a smartphone you get a large notepad: type an idea, swipe up – and the note sticks to the board.
Ideas · Questions · Parking lot: notes snap into columns. Nobody gets lost or moves the layout by accident.
Private writing stops the first ideas from shaping all the others. Everything is revealed at once.
The assistant groups similar ideas and merges duplicates – locally on our own server, without external AI.
The facilitator decides how many dots everyone gets. Stamps like 👍 ❤️ 💡 ❓ 🎯 give quick feedback.
Instead of a template, type in your meeting topic – Pinnarium suggests sections and a guiding question. For decisions there are pros & cons and SWOT.
Yes, with no sign-up, no ads and no payment details.
Yes. The stage view shows the board large on the projector or in a screen share, with a QR code to join. Everyone else writes along on their own device.
A board holds up to 80 participants and 600 notes.
No. Grouping and summarising run on Pinnarium’s own server; no content is sent to external services.