Regex Tester and Formatter - FAQ
Common questions
1
Do you upload my text or regex pattern?
No. Everything runs in your browser, and your data stays on your device.
2
What does the formatter change?
The formatter gives a readable display layout only. It does not change your active test pattern automatically.
3
Why can match output be truncated?
Very large match counts are capped to keep browser memory stable and prevent frozen tabs.