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Find and Replace Text
Find text, replace first or all matches, and count replacements.
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Enter a regex, flags, and sample text to see match count, match list, and invalid regex errors.
Tip: MH Tools runs this utility in your browser for quick no-login use. Review generated output before publishing or sharing it.
Regex Tester is part of the Developer Tools collection in MH Tools. It is designed for fast, no-login use and works well for quick browser-based tasks.
Enter a regex, flags, and sample text to see match count, match list, and invalid regex errors.
Step 1: Enter a regex pattern.
Step 2: Choose flags.
Step 3: Paste test text and review matches.
No. Invalid patterns show a friendly error.
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Matches
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