Send messages to the future.
Create a time capsule that delivers your words, files, or actions exactly when they're needed — on a specific date, or only if you go silent.
Use Cases
People use EternalRelays for things that matter most when time is uncertain.
Why not just ask someone?
Manual methods and lawyers work for some things. For automated, time-sensitive delivery of what matters most, they consistently fall short.
- People forget over years or decades
- Records get lost or destroyed
- No guaranteed delivery date
- Privacy depends on others' discretion
- No way to trigger on inactivity
- Expensive upfront and ongoing
- Months stuck in probate
- Cannot trigger on your silence
- No real-time digital delivery
- Rigid — slow and costly to update
- Automated delivery — never forgets
- Fires on your exact schedule
- Triggers if you go silent (Safety Vault)
- Encrypted & private, no third parties
- Update or cancel anytime, instantly
Built for what you're trusting it with
Real security architecture — not just a checkbox.
How It Works
Two ways to seal and deliver your message. Pick the one that fits.
Time Capsule
Deliver on a fixed date, no matter what.
Create a Time Capsule
Give it a name, write your message, and choose a delivery method — email, webhook, social media, and more.
Set an unlock date
Pick any future date and time. Your capsule is sealed and waiting — no check-ins required.
It delivers automatically
When the date arrives, EternalRelays fires your delivery exactly as configured. No action needed on your part.
Safety Vault
Deliver only if you stop checking in — your ongoing proof of life.
Create a Safety Vault capsule
Configure a check-in interval — daily, weekly, or any custom period. Set up your delivery method and message.
Keep it alive with regular check-ins
Log in and click Keep Alive, use the API, send an email — whatever fits your workflow. As long as you check in, nothing happens.
It fires if you go silent
Miss your check-in window and the capsule delivers. A grace period gives you extra time — you can also get warning emails before the deadline.