RegEx Tester & Debugger
Test regular expressions with real-time match highlighting, group capturing, and cheat sheet.
Matches Found (2)
. : Herhangi bir karakter\d : Rakam [0-9]\w : Kelime karakteri [a-zA-Z0-9_]\s : Boşluk karakteri^ / $ : Başlangıç / Bitiş* / + : 0+ / 1+ tekrar? : İsteğe bağlı (0 ya da 1)(...) : Yakalama grubuOverview
Free online Regular Expression tester. Test PCRE and JavaScript regex patterns with instant match highlighting, capture groups, and syntax error detection in your browser.
Regex Tester & Debugger: Real-Time Pattern Highlighter
The Regex Tester validates regular expressions against sample test strings with live match syntax coloring, group captures, and flag toggles.
How to Test Regular Expressions
Fast & IntuitiveWrite Regex Pattern
Enter your regular expression string.
Insert Test Corpus
Paste sample text to evaluate matching.
Review Highlighted Matches
Inspect captured groups and index offsets in real time.
Key Highlights & Advantages
Zero server uploads. Everything processes securely within your local browser memory.
Immediate results with no file upload or download queues.
No registration, no paywalls, and no hidden quotas.
Seamlessly optimized for mobile smartphones, tablets, and desktop workstations.
All data processing runs natively via W3C compliant browser hardware acceleration.
- Escape special metacharacters like `.` or `?` with a backslash when matching literal symbols.
Related Guides
Frequently Asked Questions
1 Q&AsWhich regex flags are supported?
Standard ECMAScript flags: g (global), i (ignore case), and m (multiline).
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