Free · Make date-shaped test values
Date Regex Sample Generator
Generate ISO-shaped date strings for parser and form tests, then check real calendar rules separately.
- Real randexp.js generation
- Private in your browser
- Safe count and repeat caps
Generate date samples
Enter a pattern without / slash marks. Samples are generated locally with safe count and repeat caps.
1
Set the pattern48 / 400 characters
Private local generatorrandexp.js 0.5.3 · no upload
2
Use the samplesReady when you are
Your samples will appear here
Nothing is uploaded. A safety cap keeps open-ended repeats and large batches under control.
Three simple steps
How to use it
- Review the year and date shape.
- Generate matching strings.
- Remember that regex alone cannot confirm every real date.
Your pattern stays on this device
randexp.js makes every string inside this browser tab. Bookify does not upload or save the pattern, seed, or samples. Generation is capped, and random examples do not replace full validation tests.