About PasteGuard
Client-side scanner for API keys, tokens, private keys, and PII before pasting into AI chats. Free, no account, runs entirely in the browser. Built for developers who use ChatGPT, Claude, or Copilot.
PasteGuard is a free browser-based secret and PII scanner that checks text before you paste it into AI assistants. It detects API keys, private keys, tokens, IBANs and other sensitive patterns client-side so nothing is uploaded. Ideal for developers and privacy-conscious users who want a quick pre-paste safety check.