NostrKey Web Extension

Nostr Key Manager & Signer

Free

NostrKey is a Safari extension for macOS and iOS that manages your Nostr identities and signs events on your behalf — your private keys never touch the websites you visit. Features: • NIP-07 signing — works with any Nostr web app • NIP-46 nsecBunker — remote signing, your key never leaves the bunker • NIP-44 encryption — modern ChaCha20-Poly1305 messaging • Encrypted document vault — zero-knowledge storage on Nostr relays • API key vault — encrypted secret storage • Master password — keys encrypted at rest with auto-lock • Multi-profile support — manage multiple Nostr identities • Per-site permissions — control which sites can request signatures • iCloud sync — profiles, settings, and vault data sync across your Apple devices via storage.sync (Safari 16+, user-toggleable) Your keys. Your control. No data collection. No tracking. Fully open source.

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This update makes the lock screen honest and closes out an issue from 1.8.1. If you removed your master password on version 1.8.1, some of your keys could have stayed secured under that old password while NostrKey reported no password was set. Your keys were never lost or exposed. They stayed encrypted the whole time. NostrKey now detects that state, says so plainly, and restores access when you enter that old password once. Also in this update: removing or changing your master password now reports any key it could not convert instead of staying quiet. Clearer wording everywhere: keys without a master password are still encrypted on your device with a device key. iPhone: the panel no longer gets clipped at the right edge of the half screen view.

The developer, Humanjava Enterprises, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • Humanjava Enterprises
    Size
    • 15.3 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • iPad
      Requires iPadOS 16.0 or later.
    • Mac
      Requires macOS 13.5 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026