A classic verbal-memory task. Listen to a sequence of digits at a chosen rate, then type them back in order (or in reverse).
What makes this one different
Most online digit-span tools use a fixed presentation rate (~1/sec). We let you slow it down to 600 ms/digit or speed it up to 1500 ms — because the rate matters for older adults, hearing processing, and language learners.
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Verbal working memory — the part that holds digit sequences, instructions, and verbal information active in mind — is measured most commonly with the digit span task. It's one of the few cognitive measures that has held clinical significance for over a century.
Forward span of 7 is typical for adults; 8–9 is strong.
Backward span is normally 1–2 lower than forward. A very large gap (5+) may indicate less flexible working memory; a small gap is healthy.
For older adults or people with hearing processing differences, a slower rate makes the task fairer. For cognitive athletes, a faster rate is more demanding.
Set your browser/OS to a clearer voice (in Settings → Accessibility → Speech). We display the digits visually too, so the task is always recoverable.