Musve

Musve - All the AI magic. None of the exposure. Musve is a free, local Chrome extension that automatically masks your sensitive data BEFORE it ever leaves your browser for ChatGPT, Claude, or Gemini. You type normally - Musve swaps sensitive values for anonymous, typed tokens on the way out, and restores them in the reply. The AI understands your text; it just never sees your real data. 🔒 100% LOCAL No backend. No telemetry. No account. The masking runs entirely inside your browser - "your real data never leaves your device." 🎯 ACCURATE - IT WON'T MANGLE YOUR PROMPTS Musve masks only what it's sure about: • Checksum-validated - credit cards (Luhn), IBAN, Israeli ID & company numbers are verified before masking. "An unlabeled number that fails its checksum is left alone" (a clearly labeled ID or IBAN is masked either way - better safe than leaked). • Context-aware - ambiguous values (passwords, dates, bank accounts…) are masked only when a matching keyword sits right beside them, so an everyday date or number is never touched. 🛡️ WHAT IT PROTECTS • Contact - email, Israeli mobile/landline, international phone • Identity - Israeli ID (ת״ז), passport, US SSN, UK NI • Financial - credit cards, CVV, expiry, IBAN, SWIFT/BIC, bank account, company (ח״פ), VAT • Secrets - passwords, API keys for 50+ services, URLs with credentials • Medical - health-fund (קופת חולים) numbers • Dates - date of birth + sensitive dates (issue / expiry / medical) • Crypto - Ethereum & Bitcoin wallets • Network - IPv4, IPv6, MAC • Israeli - vehicle plate, driver's license • Names & addresses (Beta) - automatically masks names introduced by a title (Mr., Dr., מר, ד״ר) and street addresses. New and improving - not every name or address is caught yet, so review before you send. • Your own - add your own custom terms to always mask ⚙️ YOU'RE IN CONTROL Click the 'green mask' to see exactly what's been masked, toggle any data type on or off, or add your own. 'Green mask = you're protected.' Works on ChatGPT, Claude, and Gemini. Free.