Deliver your final messages securely
Executrix is a Swiss-based encrypted service that delivers your personal messages after your passing, securely and privately.
About
Executrix is a high-security, privacy-first dead man’s switch for your most important messages. We believe everyone deserves a way to ensure their final words reach the right people, on their own terms, with absolute privacy.
In today’s digital world, where our lives are increasingly online, it’s more important than ever to protect final words, memories, and sensitive information. Executrix is built for exactly that:
- A personal message for your loved ones
- Meaningful memories or stories you'd like remembered
- Sensitive information that must stay confidential until the right moment
Unlike other services, Executrix is built on a zero-knowledge foundation: your password never reaches our servers, and all encryption happens on your device. We cannot decrypt your messages. Hosted exclusively in Switzerland, your data benefits from some of the strongest privacy laws in the world, resistant to foreign government access requests.
Read MoreFeatures
Main features of Executrix
Zero-Knowledge Authentication
Your password never leaves your device. Login is powered by the OPAQUE protocol, a cryptographic standard where the server verifies your identity without ever seeing your password. Because your password is your encryption key, we cannot decrypt your content, even under legal compulsion.
End-to-End Encryption
All messages are encrypted on your device before they reach our servers. We use AES-GCM with keys derived from your password, so only you and your chosen recipients can ever read your content. We have no ability to access or share it.
Multiple Delivery Methods
Messages can be delivered via SMS or email. Recipients receive a link to an encrypted page requiring a passphrase to decrypt. For email recipients with a published GPG key, messages can be stored and sent encrypted with their key directly.
Flexible Release Modes
Check-In Mode acts as a dead man’s switch, releasing your messages automatically if you miss a check-in within a chosen timeframe. Executor Mode lets you designate trusted individuals to initiate the release; you’ll receive a final notification and can cancel before anything is sent. For additional automation, connect Google’s Inactive Account Manager to trigger the executor flow when your account goes dormant, or use our Webhook integration to trigger a release from any external system or service.
Open Source Client
Our client-side code will be fully open for public inspection. Independent audit by the global security community provides a stronger guarantee than any policy alone. View on GitHub
Biometric Check-Ins Coming Soon
Confirm your well-being with a biometric check-in on your mobile device, replacing manual logins with a quick and seamless step.
Social Integrations Coming Soon
Automatically publish a final post to platforms like X when your messages are released.
Gallery
Example screenshots of the mobile and desktop apps.
Pricing
All plans include every feature. Choose the commitment that suits you. Once your messages are released, billing stops automatically.
Annual
$5 / year
Pay year by year, cancel any time.
- Up to 25 messages
- All delivery methods
- All release modes
- Latest features
25 Years
$50 / 25 years
One payment, covered for a quarter century.
- Up to 25 messages
- All delivery methods
- All release modes
- Latest features
Lifetime
$100 / once
Pay once, never think about it again.
- Up to 25 messages
- All delivery methods
- All release modes
- Latest features
Frequently Asked Questions
How secure is Executrix?
Our service employs the latest cryptographic standards to ensure your data remains secure. Authentication uses the OPAQUE protocol, meaning your password is never transmitted to or stored by our servers; we prove your identity without ever seeing your secret. Your password is used client-side as the basis for your encryption key, so even we cannot decrypt your data.
All messages are encrypted using AES-GCM. Encryption and decryption happen entirely in your browser or app; our servers only ever store ciphertext. Recipient messages are also encrypted client-side, with options for custom passphrases or GPG key encryption.
By storing your data exclusively in Switzerland, we also benefit from some of the world's strongest privacy laws, providing additional protection against third-party access requests.
What is the OPAQUE protocol?
OPAQUE is a cryptographic protocol for password-based authentication that ensures your password is never sent to the server, not even in hashed form. Instead, both sides perform a mathematical exchange that proves you know the password without revealing it. This is known as an asymmetric Password-Authenticated Key Exchange (aPAKE).
For Executrix, this has a critical implication: your password is also your encryption key. Because the server never sees your password, it is impossible for us, or anyone who breaches our servers, to decrypt your messages. Your privacy is guaranteed by mathematics, not just by policy.
What is encrypted by Executrix?
All your messages will be encrypted by default unless you specifically choose to save recipient messages in plain text. This option can be useful for less tech-savvy users or when you prefer to send messages directly via SMS instead of sharing a link to an encrypted web page.
Please note that data such as user contact information and subjects is not protected by zero-knowledge encryption, as we need access to it for the sending process.
While all data is encrypted, any information we can access is encrypted on our servers using encryption keys we control, allowing us to access that data when necessary.
How long is data retained?
Once all your messages have been successfully sent and there’s no further activity on your account, your data will be automatically deleted after 1 year.
If your subscription ends before your messages are released, we’ll hold your data for up to 6 months, giving you time to renew access, after which it will be permanently deleted.
What happens if I forget my password?
Unfortunately, if you forget your password, we are unable to recover your data. Your password is essential for deriving the encryption key, which is processed client-side, and we have no access to it. If we assist in recovering your account, any previous data would need to be deleted, as you can no longer decrypt it.
We recommend securely storing your password in an encrypted password manager for safekeeping.