Category: Text tools
PII Detector & Redactor
Find and redact emails, phone numbers, card and IP numbers in text
Scan pasted text for email addresses, phone numbers, credit card numbers, IP addresses and US Social Security numbers, then replace each match with a label or a mask. Detection uses fixed pattern rules in your browser, not AI, and nothing you paste is sent anywhere.
4 match(es) found
| Type | Match |
|---|---|
| Email addresses | jane.doe@example.com |
| Phone numbers | 415-555-0132 |
| IP addresses | 192.168.1.20 |
| Credit card numbers | 4111 1111 1111 1111 |
Reach Jane at [EMAIL] or [PHONE]. Server IP: [IP_ADDRESS]. Card on file: [CREDIT_CARD].
Matches are found with pattern rules in your browser, not AI. This is a starting point, not a compliance guarantee — always review the result before sharing it.
Everything on this page is processed in your browser. Nothing is uploaded.
What this tool does
This tool looks for a handful of common personal-data shapes using regular expressions plus a checksum check for card numbers, then lets you replace each match with either a category label like [EMAIL] or a character mask that preserves the original length. It is a fast first pass for scrubbing obvious personal data from logs, tickets or sample text before sharing it, not an exhaustive compliance tool: unusual formats, non-US phone numbers or ID formats, and other categories such as names or addresses will not be caught, and pattern matching can occasionally misidentify an unrelated number.
How to use it
- Paste the text you want to check into the box.
- Review the matches list, grouped by category, below it.
- Choose whether to replace matches with a label or a character mask.
- Copy or download the redacted text.
Privacy
This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.
Frequently asked questions
- Does this use AI to find personal data?
- No. It uses fixed pattern rules (regular expressions and a card-number checksum), the same way every time, entirely in your browser.
- Is this a complete privacy or compliance check?
- No. It catches a handful of common formats — emails, phone numbers, credit card numbers, IPv4 addresses and US Social Security numbers — and can miss unusual formats or other kinds of personal data. Always review the result yourself.
- What is the difference between the two redaction styles?
- "Replace with label" swaps a match for a tag like [EMAIL]. "Mask characters" keeps the original length and punctuation but replaces each character with a dot, which can be useful when the shape of the data still needs to be visible.