Skip to main content

Cognitive Fun

A plain, ad-free bank of cognitive tests — n-back, digit span, Stroop, mental rotation — that keeps a history of your scores.

Opens in a new tab. We do not control this site and it may have changed since we catalogued it.

How to get the most from it

Cognitive Fun sits in Brain Trainers under Play, filed as coffee break.

  • Set aside five to fifteen minutes and give it your proper attention.
  • Use a laptop or desktop computer — we file it as desktop only.
  • It works with the sound off, so it is fine on a train or in a quiet office.
  • No account needed — you can start without signing up.
  • Go in expecting something brainy and useful.

About this category: Memory, reaction, attention and pattern-matching drills that happen to be fun. Short sessions, visible progress, and a score you will want to beat.

Good for

  • Filling a coffee break properly
  • Giving your brain a workout
  • Getting something practical done
  • A quiet break at your desk
  • Trying it with zero commitment

Cognitive Fun: quick answers

Is Cognitive Fun free?

Yes. Cognitive Fun is free to use and needs no account.

Do I need an account to use Cognitive Fun?

No. You can use Cognitive Fun without signing up for anything.

Does Cognitive Fun work on a phone?

Not well. We file Cognitive Fun as desktop only, so open it on a laptop or desktop computer.

Is Cognitive Fun safe for work?

Yes, we file it as safe for work. It also works muted.

How long does Cognitive Fun take?

We file it as "Coffee break": Five to fifteen minutes of proper attention.

More in Brain Trainers

All 15 in Brain Trainers
  • The 1978 electronic memory toy rebuilt faithfully in a browser tab, still beating most grown adults somewhere around level twelve.

    • 2 min
    • Sound on
  • Reaction time, sequence memory, the chimp test and verbal memory, each scored against millions of other people's attempts.

  • Millions of chess tactics pulled from real games and served at exactly your rating, entirely free and with no account required.

  • The best-known brain-training subscription, with a free daily set of games and rather a lot of graphs about your own decline.

Same mood: brainy

All brainy sites
  • Match hue, saturation and complementary colours against a target, one exercise at a time, scored out of a hundred.

  • Palette generator trained on photographs and films, so the colours it suggests look like they came from somewhere real.

  • Petabytes of crawled web pages released free for anyone to analyse. Most of the language models you have used started here.

    • 1 hr+
    • Desktop
  • Interactive models of what complexity science likes best — epidemics, flocking, synchronisation, forest fires.

    • 1 hr+
    • Desktop

Keep exploring

Have a site of your own? Suggest it for Detour or browse the AltFTool backlinks hub.