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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Deletes now stay deleted across all your devices. When you remove a vault note, a stored API key, or a whole profile, syncing to another device will not bring it back. Also in this release: - The right key, every time, after deleting a profile. NostrKey confirms a key belongs to its profile before it is ever used. - Switch your active profile straight from Manage Profiles with the new "Make Active" button. - A freshly synced second device no longer locks itself out.

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
    16 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