Free tool
Regex Tester and Replacer
Test regular expressions and preview replacements.
Match previewReplaceInstant
Why it helps
Test patterns
See matches and capture groups in real time.
Replace safely
Preview replacements before applying.
Regex
Regex tester and replacer
Live matches
Matches
0 matches
Replacement
FAQ
Quick answers about this tool.
Is this private?
Yes. All processing happens in your browser.
Do I need an account?
No. These tools are free and work without signup.
Can I use multiple files?
Yes. Most tools support batch processing.