Data Masker
Anonymize sensitive data in text. 100% local — no data sent.
You use this tool often? Pro includes files up to 500 MB and priority processing.
What is Data Masker?
The data masking tool automatically detects and replaces sensitive information in text: emails, phones, IBANs, IPs. Ideal for anonymizing logs, exports, or documents before sharing.
How to use this tool?
Paste your text, select the data types to mask, and click 'Mask'. The anonymized text is ready to copy or download.
Benefits
- Automatic sensitive data detection
- Customizable masking
- 100% local
- No data sent
- Export anonymized text
Frequently Asked Questions
- What data types are detected?
- Emails, phone numbers, IBANs, credit card numbers, proper names, and IP addresses.
- Is data sent anywhere?
- No, processing is 100% local in your browser. No data ever leaves your device.
- Can I customize masking?
- Yes, you can choose the replacement character and which data types to mask.
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The data masking tool automatically detects and replaces sensitive information in text: emails, phones, IBANs, IPs. Ideal for anonymizing logs, exports, or documents before sharing.
How to use this tool?
Paste your text, select the data types to mask, and click 'Mask'. The anonymized text is ready to copy or download.
Benefits
- Automatic sensitive data detection
- Customizable masking
- 100% local
- No data sent
- Export anonymized text
Frequently Asked Questions
- What data types are detected?
- Emails, phone numbers, IBANs, credit card numbers, proper names, and IP addresses.
- Is data sent anywhere?
- No, processing is 100% local in your browser. No data ever leaves your device.
- Can I customize masking?
- Yes, you can choose the replacement character and which data types to mask.
Similar Tools
Password Generator
Generate cryptographically secure passwords. Customize length, character sets and check strength. 100% in the browser.
Use →Encrypted Secret Sharing
Share a password or API key via an encrypted, single-use link (burn after reading). AES-256, free.
Use →Redact / Censor PDF
Mask sensitive areas in your PDF with black rectangles. Irreversible redaction via pdf-lib. 100% browser-based.
Use →