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Regex Tester
Test and debug regular expressions in real time.
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Zadaj vzor a text…
The Regex Tester lets you write a regular expression and test it against sample text in real time. Matches and capture groups are highlighted as you type, so you can build and debug patterns quickly. Free and entirely in your browser.
How to use
- 1 Enter your regular expression and any flags.
- 2 Paste the test text below it.
- 3 Watch matches highlight in real time.
- 4 Refine the pattern until it matches what you want.
Frequently asked questions
Which regex flavor is used?
It uses JavaScript regular expressions, the same engine browsers run.
Does it show capture groups?
Yes. Matches and their groups are highlighted as you type.
Is my text private?
Yes. Testing happens locally in your browser; nothing is uploaded.