Brainstormer

Ideas keep odd hours

Brainstorming app for the browser and your pocket

A brainstorming app has one job: be ready the moment you are stuck or struck. Brainstormer runs in any browser, works one-handed on a phone, and turns a captured thought into a full clustered brainstorm when you sit down.

  • Runs in any modern browser, nothing to install
  • Phone-friendly: capture and riff one-handed
  • A capture becomes a full brainstorm at your desk
  • Everything syncs into one private idea library

No credit card needed.

Brainstorm Studio
Try it: pick a challenge

Challenge:

+ more on the wall

Winner

score / 10

Why

Sample brainstorm shown. Your challenges stay private.

Capture is cheap, development is the product

Every notes app captures ideas; that is why they go to notes apps to die. The valuable move is what happens next: the idea gets challenged, mutated, surrounded by alternatives, and either promoted to a plan or honorably retired. A brainstorming app should do that development, not just the capture.

In Brainstormer a phone capture is a seed. Open it later and yes-and mode builds on it, the idea generator deals challengers around it, and the converge step tells you whether your shower thought survives contact with scoring. Half-formed is a valid input format here.

Designed for the small screen, not shrunk to it

On a phone the wall becomes a compact two-column deck with thumb-sized chips, the lens toggle stays one tap, and the whole diverge-converge arc works without pinching. The studio on this page is the actual mobile experience, not a video of the desktop one; try it on whatever device you are holding.

At a desk, the same session opens as the full wall: mind map view, SCAMPER columns, cluster rings. One brainstorm, both postures, and online brainstorming with your team continues from either.

One library, zero loose ends

Every session, capture and export lives in a searchable idea library, so the campaign angle you almost used in March is findable in July. Exports (Markdown, PNG, CSV) go wherever your execution lives. Private by default, never used for training, deletable on request.

Get started from $16 per month; Pro at $39 adds the deep-dive runs and the library search that make the pocket workflow sing.

Questions

Is there something to install?

No. Brainstormer runs in any modern browser on phone, tablet or desktop. Add it to your home screen and it behaves like a native app.

Can I start on my phone and finish on my laptop?

Yes. Sessions sync: capture or riff on the phone, then open the same wall on a bigger screen for the framework lenses and the converge step.

From blank page to a decided direction

Plans from $16 per month. Every framework included.

See pricing