Data anonymization tool online — the complete guide (2026)
Paste any text into PrivacyFilter and it will detect and replace all PII using OpenAI Privacy Filter. No account needed, zero data retention. Three redaction modes: replace placeholders, mask with blocks, or tag entities.
Free tier
3 anonymizations/day up to 2,000 chars. Paid plans: up to 10,000 chars, batch processing, REST API, JSON entity export.
GDPR
Input text is not stored server-side. OpenAI is listed as a sub-processor under a DPA.