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 utilizações

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Como usar a ferramenta Regex Tester

Usar a nossa Regex Tester é incrivelmente fácil e totalmente gratuito. Concebemos a nossa Developer Tools especificamente para utilizadores do dia a dia que precisam de resolver tarefas rapidamente sem descarregar software complicado nem criar uma conta.

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% seguro

Os seus ficheiros são encriptados e eliminados automaticamente dos nossos servidores após 1 hora. A sua privacidade está garantida.

Extremamente rápido

Usamos processamento na nuvem de alto desempenho para garantir que os seus ficheiros ficam prontos em segundos, não minutos.

Funciona no telemóvel

Não é necessário instalar qualquer aplicação. Use as nossas ferramentas sem problemas em iOS, Android, Mac ou Windows.

Perguntas frequentes

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.