String / Text Replacer
Find and replace text with literal or regex patterns. Multi-pattern, case-insensitive, whole-word options. Runs 100% in your browser.
Enter a find pattern to start.
Reference
How does find and replace work?
Literal mode matches exact strings; regex mode uses JavaScript regular expressions. Capture groups can be referenced in the replacement with $1, $2, etc. Multi-pattern mode applies replacements top-to-bottom in order, useful for cleanup pipelines like trim → normalize → uppercase.
Common uses
- Bulk edits — rename a term across long documents.
- Code refactor — replace deprecated API calls.
- Data cleanup — strip artifacts from copy-pasted CSV.
- Translation — swap multiple terms in one pass.
Regex syntax
Use JavaScript regex syntax. Capture groups are referenced as $1, $2 in the replacement.
Privacy
All processing runs 100% in your browser. No data is sent to any server.