Anonymize text before pasting into ChatGPT
Paste a prompt into an AI and a client's name, an email or an IBAN can go with it, and once it's sent you can't take it back. Privacy Sanitizer masks every piece of sensitive data on your device first, then restores the originals from the AI's reply.
Paste your text and click Sanitize.
Copy the masked text into ChatGPT or Claude.
Paste the AI's reply back to restore your original data.
FAQ
Is my text uploaded anywhere?
No. Detection and masking run entirely in your browser via a Web Worker: your text stays on your device and no server receives it.
Can I get the original data back?
Yes. Privacy Sanitizer keeps a local mapping so you can paste the AI's response back and restore every original value: names, emails, IBANs and the rest.
Is it free?
Yes, completely free: no account, no tracking, and the site sets no cookies.
More local-first privacy tools
Part of SecureLocalSuite: sanitize text, extract mind maps, edit video and optimize PDFs, all in your browser.