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Regex Tester

Test regular expressions against sample text in real-time.

🔍Dev Tools

Regex Engine

ℹ ECMAScript standard. Supports lookahead, lookbehind (ES2018+), and backreferences. No possessive quantifiers or \A/\Z anchors.

Pattern

[a-z]Matches one character in the set: [a-z]

+Matches the character '+' literally

Flags

Test Text

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Enter a regex pattern and test text above, then click Test to see matches. Browse the Quick Reference below for common patterns.

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