Private offline notes with rich formatting, lists, headings, photos, voice recordings and location pins. Protect notes and attachments with AES-256-GCM; keys come from your password via PBKDF2-HMAC-SHA256 (210,000 rounds). Unlock with biometrics/PIN, hide notes, and keep secrets out of search. No accounts, sync, analytics, ads or cloud backup. Autosaves drafts, exports ZIPs (optionally AES-256 encrypted), supports 25 languages, dark mode, TalkBack and WCAG contrast.
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Detects passwords, tokens and secrets in messaging apps and secures them with end-to-end encrypted SecNote links.
How it works?
SMP runs silently in the background while you type in your favourite messaging apps. The moment it detects a secret in your message, it replaces it with a short, end-to-end encrypted secure-notes link — so the recipient can open it securely, and it expires automatically. It comes with built-in support for the most popular services and business email.
