What are the skill tests?

6 short tests, about a minute each: reaction time, memory span, typing speed, colour match, mental maths and number recall. Each measures one thing and gives you a number to beat.

How accurate is a single run?

Treat the first run as a warm-up. Reaction time in particular moves by tens of milliseconds between attempts, so take three runs and use the average or the best, which the page keeps for you.

Are my scores saved or shared?

Saved in your browser only. Nothing is uploaded, so there is no leaderboard of other people and no account to create. Clearing site data clears the scores too.

Mondo Knows Challenges

Free Skill Tests: Reaction Time, Memory, Typing & More

6 skill challenges, and none of them quite a game and none quite a quiz: each one measures a specific thing, gives you a number, and lets you try again straight away. Your best result is kept on your own device. They are meant to be fun, and Mondo is clear about what each one can and cannot tell you.

Reaction Time TestHow fast can you react when the screen changes?Under a minute Memory SpanHow many items can you hold in your head at once?1-3 minutes Typing Speed TestMeasure your words per minute and accuracy.1-2 minutes Colour MatchName the ink, not the word.45 seconds Mental Math SprintSixty seconds of quick arithmetic.60 seconds Number RecallRemember the digits, then type them back.1-3 minutes

Search every challenge

Type a skill, or filter by what you want to test. 6 challenges, no sign-up.

6 challenges

Questions people ask

What are the skill tests?: 6 short tests, about a minute each: reaction time, memory span, typing speed, colour match, mental maths and number recall. Each measures one thing and gives you a number to beat.
How accurate is a single run?: Treat the first run as a warm-up. Reaction time in particular moves by tens of milliseconds between attempts, so take three runs and use the average or the best, which the page keeps for you.
Are my scores saved or shared?: Saved in your browser only. Nothing is uploaded, so there is no leaderboard of other people and no account to create. Clearing site data clears the scores too.