SECUREPASTE

Mask sensitive data before pasting into LLMs.

What they don't know can't hurt you.

Get the extension

How it works

  1. Detect — paste triggers a scan for emails, phones, IPs, credit cards, names, custom keywords
  2. Confirm — chips show each finding; you decide what to mask
  3. Mask — sensitive text becomes [[ANON_N]] tokens before reaching the LLM
  4. Restore — when the model echoes tokens, originals appear in the response automatically

Supported sites

claude.ai · chatgpt.com · gemini.google.com

Privacy

Zero telemetry. Zero outbound requests. All data stays in chrome.storage.session (per-tab, cleared on close). Custom keywords sync between your own Chrome instances via chrome.storage.sync.

Full privacy policy

Open source

MIT licensed. Source on GitHub.