ChatShield

Warns you before pasting API keys, tokens, or secrets into AI chat tools. All detection is local — nothing ever leaves your device.

Paste with confidence. ChatShield catches secrets BEFORE they reach an AI chat box. If you use ChatGPT or Claude every day, you paste code, logs, configs, and stack traces constantly. It's far too easy to paste an API key, access token, database password, or private key along with everything else - and once a secret lands in a cloud AI tool, it's effectively leaked. ChatShield watches your pastes and, the instant it spots something that looks like a secret, shows a quick warning so you can redact it or paste anyway. That's it. ★ 100% LOCAL & PRIVATE All detection happens inside your browser. Your clipboard and the text you paste are NEVER sent anywhere. No servers, no analytics, no tracking. ★ NEVER IN YOUR WAY The warning is a small panel, not a wall. One click to redact, one click to paste anyway. Tune which detectors run from the settings page. - FREE - Full protection on ChatGPT (chatgpt.com / chat.openai.com) and Claude (claude.ai). - PRO ($19, one-time) - Protect EVERY website you visit. One purchase, yours forever. No subscription. ChatShield does one thing and does it well: it stops accidental secret leaks at the moment of paste.