SearchZee

Developer Utilities

RegEx Tester & Debugger

Test, build, and debug Regular Expressions with real-time match highlighting, group breakdowns, and flags.

100% Client-Side RegEx Tester & Debugger
//gi
Presets:
Test String Input

Matches Detected: 2

#IndexMatched Text
119hello@searchzee.com
242sales@example.org

What is a RegEx Tester & Debugger?

Common RegEx Cheat Sheet

RegEx SyntaxDescription & Behavior
`\\d`Matches any digit character (0-9).
`\\w`Matches word characters (letters, numbers, underscore).
`+`Matches 1 or more occurrences of preceding token.
`*`Matches 0 or more occurrences of preceding token.
`[a-z]`Character class matching lowercase letters.

Frequently Asked Questions (AEO)

What regex flags are supported?
Flags include global matching (g), case-insensitive matching (i), and multiline anchor matching (m).
Is my regex test string private?
Yes. All pattern matching executes 100% locally in your web browser JavaScript runtime.