Free Regex Tester Online 2026 - Test Regular Expressions with Live Match Highlighting
Professional Regex Tester & Debugger — Regular expressions live test karein, matches highlight dekho, capture groups inspect karein, regex replace/split mode, aur 30+ common regex patterns reference. Developers ka ultimate free tool!
Regex Tester & Debugger
Live Matching • Capture Groups • Replace • Split • 30+ Presets
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⋙ Regular Expression Pattern
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Enter a regex pattern and test string
✎ Test String
✨ Live Match Preview — Matches highlighted in color
Matches will appear here with color highlights...
📋 Match Details
Match details will appear here...
📋 Regex Quick Reference — Click to Insert
Anchors
^Start of string/line
$End of string/line
\bWord boundary
\BNon-word boundary
Character Classes
.Any char except newline
\dDigit [0-9]
\DNon-digit
\wWord char [a-zA-Z0-9_]
\WNon-word char
\sWhitespace
\SNon-whitespace
Quantifiers
*0 or more (greedy)
+1 or more (greedy)
?0 or 1 (optional)
{n}Exactly n times
{n,m}Between n and m times
*?Lazy (non-greedy)
Groups & Lookahead
(abc)Capture group
(?:abc)Non-capture group
(?=abc)Positive lookahead
(?!abc)Negative lookahead
(?<=abc)Positive lookbehind
a|bAlternation (OR)
Character Sets
[abc]One of a, b, or c
[^abc]Not a, b, or c
[a-z]Lowercase a to z
[A-Z]Uppercase A to Z
[0-9]Digits 0-9
[a-zA-Z0-9]Alphanumeric
Escape & Special
\nNewline
\tTab
\rCarriage return
\.Literal dot
\+Literal plus
(?<name>)Named capture group
Regex Tester Kaise Use Karein?
- Pattern field mein regex enter karein ya preset select karein
- Flags (g, i, m, s, u) toggle karein as needed
- Test String mein text paste karein — matches instantly highlight honge
- Match Details mein index, length aur capture groups dekho
- Replace Mode mein
$1,$&use karke regex replace karein - Reference table mein symbol click karke directly pattern mein insert karein