Previewing replacements prevents expensive mistakes.
Regular expressions are powerful, but a broad pattern can modify more content than expected. This tool highlights matches and shows the complete transformed output before applying it.
Home / Apps / Text / Find and Replace
Regex · Live preview · File inputFind, inspect and replace text with precision and confidence.
Use literal or regular-expression matching, whole-word and case controls, file input, live highlighting, replacement previews and export-ready output.
✓ Regex and capture groups✓ Match highlighting✓ File upload✓ Replacement history
Advanced Find and Replace
Standalone advanced workspace with local processing and branded exports.
Source content
Text remains in your browserDrop a text, CSV, JSON, HTML, Markdown or log file
or choose a local file
Find and replacement rules
Preview before applyingMatches found0Current rule
Characters changed0Difference estimate
Output length0Characters
Highlighted matches
Replacement preview
Recent operations
Created with NanyAppsnanyapps.com
Any Tool. Any Task.Free online tools by NanyApps