🔍Regex Tester
Test and debug regular expressions in real-time
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Error
Results
matches found
Copied matches to clipboard.
No matches found
Match
Index:
Capture Groups:
Group :
Quick Reference
Character Classes
- . - Any character
- \\d - Digit (0-9)
- \\w - Word character
- \\s - Whitespace
- [abc] - Any of a, b, or c
- [^abc] - Not a, b, or c
Quantifiers
- * - 0 or more
- + - 1 or more
- ? - 0 or 1
- {n} - Exactly n
- {n,} - n or more
- {n,m} - Between n and m
Anchors
- ^ - Start of string/line
- $ - End of string/line
- \\b - Word boundary
Groups
- (abc) - Capture group
- (?:abc) - Non-capture group
- a|b - a or b
FAQ
Why am I getting no matches?
Check anchors and flags first. For multiline input, enable the m flag if needed.
Can I debug validation regex here?
Yes. This tool is suitable for email, URL, token, and log parsing regex checks.