Create Number Typos - Generate Various Number Typos

People rarely mis-type randomly; they fall into fingerprints. 12 becomes 21 (swap), 12233 doubles, 45 lands on 44 or 46 (neighbours). Create Number Typos reproduces those human slip-patterns so you can drill against them and build data-entry accuracy.

Create Number Typos generates the realistic keypad mistakes people actually make - swap, double, skip, neighbour and delete. Toggle the classes you want to train against, batch through up to 1000 numbers, and export a labelled typo drill set.

• Five typo classes: Swap, double, skip, neighbour, delete.
• Class toggles: Generate only the typo types you want.
• Keypad-realistic: Slips people actually produce.
• Labelled output: Every typo names its mistake.
• Batch mode: Up to 1000 numbers per run.
• Copy or download: Export the drill set.

1. Enter numbers - one per line, two or more digits.
2. Toggle typo types - pick the classes to generate.
3. Generate - each number sprouts its variants.
4. Read labels - see which slip each typo represents.
5. Copy or download - the typo set.

1. 12 -> 21 via transposition (swap).

2. 123 -> 1223 via a doubled key.

3. 123 -> 13 via a skipped key.

4. 435 -> 425 via a neighbour-key press.

5. 12345 -> 1245 via a deleted digit.

• Human-realistic: Typos people actually make.
• Five classes: A complete typo fingerprint set.
• Selective drills: Train only the words you need.
• Clear labels: Each mistake names itself.
• Copy or download: Export drill sets easily.
• Private and free: Everything runs in the browser; nothing is uploaded or logged.