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Live highlighting Group parsing Replace preview

Regex-Tester

Regex-Tester — kostenlos direkt im Browser verarbeiten.

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Privacy: All processing runs locally in your browser. Nothing is uploaded to any server, so your data stays private and secure.
📝 Test text
🔍 Match highlight
📋 Matches
🔁 Replace preview

Technical References

  1. Regular Expressions — MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_expressions

Frequently Asked Questions

Which flags are supported?

g (global), i (ignore case), m (multiline), s (dot matches newlines), and u (Unicode).

Can I see capture groups?

Yes. The match list shows the capture group content for each match.

Is replacement preview supported?

Yes. Enter a 'Replace With' value to preview the replaced text in real time.

Is data sent to a server?

No. Matching and replacement happen entirely in your browser.

Technical References

  1. Regular Expressions — MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_expressions