How to choose an online brainstorming tool
Last reviewed by The thinkdrop facilitation team
Choose an online brainstorming tool by how little it asks of participants. The features that change outcomes are guest access with no account, real-time cards so everyone posts at once, a silent generation mode, simple reactions or voting, and an automatic written summary. Infinite canvases and template galleries rarely decide whether a session works.
Key facts
- Most important feature
- Participants join without an account
- Second
- Real-time cards from everyone at once
- Third
- A written summary after the session
- Typical setup time to aim for
- Under 2 minutes
- thinkdrop price
- $0.99 per month, 7-day free trial
- thinkdrop guest access
- Yes — link only, no signup
Step by step
- Check what participants have to do before contributing — Count the steps between receiving a link and posting a first card. Every account, install or workspace invitation removes a share of the room, and it is usually the least persistent people whose ideas you most wanted.
- Confirm cards appear in real time — Everyone posting at once is the mechanism that removes production blocking. A tool where people take turns, or where updates lag by seconds, quietly reverts you to a spoken meeting.
- Look for a silent generation phase — Either a hidden-cards mode or simply a board people can write to before discussion opens. Without it the facilitator has to enforce silence verbally every session.
- Check how the group chooses — Reactions or votes need to be one click and visible instantly, otherwise prioritisation eats the last fifteen minutes. The option to disable downvoting matters for retrospectives.
- Check what you leave with — A screenshot of sticky notes is not an outcome. Look for an export or an automatic summary that names the themes, the most-supported ideas and the next steps.
- Price it per month, for real usage — Per-seat pricing punishes exactly the behaviour you want — inviting more people. Prefer tools where participants are free and the facilitator pays a small flat amount.
Features that look important but rarely are
Tool comparisons are dominated by capabilities that do not affect whether a session produces decisions.
- Infinite canvas: impressive in a demo, hard to read back a week later.
- Huge template galleries: you will use two of them, repeatedly.
- Freehand drawing: unusable for the half of the room on a laptop trackpad.
- Video conferencing built in: your team already has a call tool they prefer.
Where AI actually helps
Two moments justify AI in a brainstorming tool. The first is the lull, when the group has exhausted the obvious and a set of unexplored angles restarts the board. The second is the write-up, which is the step that most often never happens: a summary naming themes, the best-supported ideas and next steps turns a session into something the team can act on the same day.
How thinkdrop approaches it
thinkdrop is deliberately narrow: a facilitator creates a board and shares a link, participants join with no account, cards and reactions appear live, AI tops up the board when it stalls and writes the summary when the session closes. Boards can repeat weekly, biweekly or monthly for recurring rituals. It costs $0.99 per month after a one-time 7-day free trial, and participants are always free.
A checklist to evaluate any tool
| Question | Why it matters |
|---|---|
| Can participants join without an account? | Every signup step loses contributors |
| Do cards appear live for everyone? | Removes waiting-to-speak blocking |
| Is there a silent generation phase? | Prevents anchoring on the first idea |
| Is voting one click? | Prioritisation must not eat the session |
| Is there a written summary? | Otherwise nothing survives the meeting |
| Is pricing per seat? | Per-seat pricing discourages inviting people |
Frequently asked questions
What is the best online brainstorming tool?
The one your participants can join from a link without an account and post to in real time; everything else is secondary.
Do participants need an account to use thinkdrop?
No — only the facilitator who creates the board needs an account, and participants join from the link.
How much should an online brainstorming tool cost?
Little, and not per seat; thinkdrop is $0.99 per month for the facilitator with a one-time 7-day free trial.
Can AI run a brainstorm for you?
It can generate starter cards and write the summary, but the choosing and the ownership still have to come from the group.