Regex Tester

Live Regex Editor & Tester

Write, test, and debug your regular expressions in real-time.

0 matches 0 ms

Regular Expression

/ /

Test String

Highlighted Matches

Detailed Matches & Groups Explorer

No matches found. Adjust your pattern or test string to see detailed match information here.

Preset Pattern Library

Quick Reference

\d Any digit (0-9)
\D Any non-digit character
\w Any word character (a-z, A-Z, 0-9, _)
\W Any non-word character
\s Any whitespace character (spaces, tabs, newlines)
\S Any non-whitespace character
. Any character except line breaks
[abc] Any character in the set (a, b, or c)
[^abc] Any character NOT in the set

* 0 or more times (greedy)
+ 1 or more times (greedy)
? 0 or 1 time (greedy)
*?, +? Lazy match (minimal matches)
{n} Exactly n times
{n,} n or more times
{n,m} Between n and m times

^ Start of string (or line in multiline)
$ End of string (or line in multiline)
\b Word boundary
| OR operator (e.g. cat|dog matches cat or dog)
(...) Capture group
(?:...) Non-capturing group
(?=...) Positive lookahead assertion
(?!...) Negative lookahead assertion

Developer Tools 540K utilizzi

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Come usare lo strumento Regex Tester

Usare il nostro Regex Tester è incredibilmente facile e completamente gratuito. Abbiamo progettato il nostro Developer Tools appositamente per utenti di tutti i giorni che hanno bisogno di fare le cose rapidamente senza scaricare software complicati o registrare un account.

Enter your pattern: Type the regular expression you want to test.
Add a test string: Paste sample text to match against your pattern.
See live matches: Matches are highlighted instantly as you refine the pattern.

100% sicuro

I tuoi file vengono crittografati ed eliminati automaticamente dai nostri server dopo 1 ora. La tua privacy è garantita.

Velocissimo

Utilizziamo un elaborazione cloud ad alte prestazioni per garantire che i tuoi file siano pronti in pochi secondi, non minuti.

Funziona su mobile

Nessuna installazione di app necessaria. Usa i nostri strumenti senza problemi su iOS, Android, Mac o Windows.

Domande frequenti

Does it highlight matches live?

Yes. Matches update in real time as you edit the pattern or text.

Is it good for learning regex?

Yes. Instant feedback makes it easy to experiment and learn.

Is my data private?

Yes. Testing runs entirely in your browser.