Write or upload
Add the secret you need to share and choose when it expires.
Private by design
Share it. Open it. It’s gone.
End-to-end encrypted messages and files that disappear after they're opened.
Encrypted in your browser
No account required
Zero-knowledge
How it works
Privacy without a learning curve.
Three small steps. No account, installation, or recovery trail.
Share a link or code
Send a private link, or communicate a Relay Code through another channel.
It disappears
The active Relay ends after retrieval or expiry. Encrypted file objects are then deleted after their protected download window.
Quiet security
Your secret should never become our secret.
FiniteRelay is designed so encryption happens before anything leaves your browser. The service stores an unreadable payload and the minimum metadata needed to deliver it.
Read the security modelAES-256-GCM encryption in the browser
Decryption key kept out of server requests
Single-use retrieval designed to resist link scanners
Automatic expiry as a final safety net
Practical guides
Make sensitive sharing a repeatable habit.
Clear workflows for credentials, encrypted files, expiring links, and client handoffs.
What is a one-time secret link?
Understand the lifecycle, benefits, and limits before you send one.
How to send a password securely
A safer workflow for temporary credentials, separate channels, and rotation.
Secure file sharing with client-side encryption
See what encryption before upload protects across the complete file lifecycle.
Simple pricing
Free when you need it. Pro when you rely on it.
Free
$0
No account required
- Messages up to 2,000 characters
- Files up to 5 MB
- Delete after one view
FiniteRelay Pro
$6 / month
For frequent, larger transfers
- Files up to 1 GB
- Active-link dashboard
- Passphrase-protected links
Business
Custom
Your policies and dedicated workspace
- Custom retention policies
- Team administration
- Priority onboarding
Prices are in USD. Applicable taxes are calculated at checkout where required.