Text Redactor
Mask selected literal text or regular-expression matches locally and review exactly what changed.
Loading Text Redactor...
How to use
Enter the text to protect and a literal target (the default) or a regular expression. Review the highlighted removed and replacement parts and match count before using the redacted result.
Example
Limitations
This tool only masks matches to the rule you provide. It does not discover every secret or guarantee anonymization. Regular expressions can match more text than intended; results are capped at 10,000 matches.
Frequently Asked Questions
Does the redactor automatically detect private data?
No. It applies only your literal text or pattern, so you must review the preview for missed or over-broad matches.
How can I hide the original length?
Leave Preserve matched length off to use one fixed replacement such as [REDACTED]. Turning it on emits one block character per matched Unicode code point.