🔍Regex Tester
Test and debug regular expressions. All processing happens in your browser.
No data is sent to any server. Regex testing is done locally and never leaves your device.
✅ 2 matches found
#1
Index: 14
#2
Index: 35
About Regular Expressions
Regular expressions (regex) are patterns used to match character combinations in strings. They are powerful tools for searching, validating, and manipulating text.
Common flags:
gGlobal (all matches)iCase insensitivemMultiline modeQuick reference:
\d — digit (0-9)
\w — word character (a-z, A-Z, 0-9, _)
\s — whitespace
. — any character
+ — one or more
* — zero or more
? — zero or one
Use cases: Email/URL validation, search & replace, parsing logs, data extraction, input sanitization