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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Updated the profile management section of the app, fixed the auto locking process, and updated initial unlock messaging.
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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Humanjava Enterprises
- Size
- 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.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026