LastSignal – A self-hosted, zero-knowledge dead man's switch
A self-hosted dead man
LastSignal – A self-hosted, zero-knowledge dead man's switch launched on January 28, 2026 with 5 votes, #3,400 of 14,585 launches that month and more than 75% of that year's launches.
What it does
Build your digital legacy with gentle email check-ins. If you stop replying, your end-to-end encrypted messages are delivered to the people you choose. A self-hosted dead man's switch for delivering encrypted messages to your loved ones — when you're gone or unresponsive. Your messages are encrypted in your browser using each recipient's public key before they ever leave your device. The server only stores encrypted blobs it cannot decrypt. Recipients decrypt messages in their browser using their private key, protected by a passphrase only they know. No backdoors, no master keys, no exceptions. Three simple steps to protect what matters most. No complicated setup, no technical knowledge…from lastsignal.app
Pricing, as stated on its site
Free — LastSignal is a completely free, self-hosted, open-source dead man's switch project. There is no business model, paid product, managed service, or hosting offered. Users self-host the application on t
checked October 2026 · prices change
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