Regex Tester
Test JavaScript regular expressions with matches and groups.
Everything runs in your browser. Nothing you enter is sent anywhere.
Tool
Regular expression
Test patterns locally in your browser.
Enter a pattern and test string
Matches and capture groups appear instantly.
Why Dockzio?
Simple tools that respect your time and your privacy.
Free and instant
No subscriptions, no paywalls, no waiting.
No sign-up required
Open a tool and get to work immediately.
Private by design
Processing happens locally in your browser whenever possible.
Beautifully built
Clean, fast interfaces designed for everyday productivity.
About the regex tester
Test JavaScript regular expressions with flags and capture groups. Invalid patterns surface clear errors.
Privacy first
All processing runs locally in your browser.
FAQ
Quick answers to common questions.
Yes. Regex Tester is free to use with no account required.
No. This tool runs entirely in your browser. Nothing you enter is sent to a Dockzio server.