SnapToolsFind and Replace (Regex)
Runs in your browserFind and replace text in a block of content — plain matching by default, or full regular expressions with capture groups when you need them.
About this tool
A find-and-replace that only handles literal strings runs out of usefulness fast: reformatting dates, stripping a recurring pattern, or renaming across inconsistent casing all need something more expressive. This tool defaults to safe literal matching, and switches to full JavaScript regular expressions — including capture groups referenced as $1, $2 in the replacement — when you turn regex mode on.
How to use
- Paste your text, then enter what to find and what to replace it with.
- Turn on regex mode for pattern matching and capture groups.
- Run to see the result.
When to use this tool
- Renaming a repeated term across a large document.
- Reformatting dates or codes with a regex capture-group replacement.
- Stripping a recurring prefix, suffix, or boilerplate line.
- Cleaning up inconsistent casing or punctuation in pasted text.
Tips
- In regex mode, reference capture groups in the replacement as $1, $2, and so on.
- Leave replacement blank to delete every match.
- Case-sensitive matching is off by default — turn it on if "Foo" and "foo" should be treated differently.
FAQ
- What regex flavour does this use?
- Standard JavaScript regular expressions, run with the global flag so every match is replaced, not just the first.
- Is my text sent anywhere?
- No. Matching and replacing both run entirely in your browser.