Some words are meant for one person only. SLNT encrypts on your device, delivers ciphertext, and erases everything on schedule.
* free — no card, no phone numberEvery message carries a timer — ten minutes or thirty days. When it hits zero, the ciphertext and its keys are purged from the server. Permanently. There is no undo, and that is the point.
Door code is 4417. Tonight only.
The number of your messages we can read. Keys are generated on your device and never leave it — what reaches our servers is ciphertext, unreadable even to us.
zero-knowledge by design · not by policy
A contract, a password, a confession — words meant for one person only. If it matters, it shouldn't live forever on someone else's server.
Choose a lifespan when you hit send. A purge job sweeps the server every five minutes — expired messages, attachments and keys are erased from existence, not flagged as deleted.
trigger.dev purge · every 5 minutes · server + backups
eyJhbGciOiJFQ0RILUVTIiwiZW5jIjoiQTI1NkdDTSIsImVwayI6eyJrdHkiOiJF QyIsImNydiI6IlAtMjU2IiwieCI6Im1OZ3o4VEtPMXpETEJlM3J6WEFNc3dFVGlK QVdNaU8wVUktYTIwdExRbHMifX0..1yFo0aT9wYkNzXvC.o7dGh4kQ
Attachments are encrypted alongside the message and vanish with it.
Compose to any SLNT user. Their public key is fetched and verified — yours never leaves the device.
One tap encrypts everything in your browser with an ephemeral key. Only ciphertext travels.
The timer you chose runs out. Message, files and keys are purged. Nothing to leak, subpoena or regret.
No account needed. Compose a message, watch it encrypt, flip to the recipient view, then trigger the self-destruct.
encrypted in your browser before upload
Start free. Upgrade when your secrets outgrow the limits.
The short version of everything people ask before they trust us with their words.
No — and not as a promise, as a property. Encryption happens in your browser before anything is sent. The server stores ciphertext and public keys only. There is nothing on our side to read, leak or hand over.
A purge task runs every five minutes and permanently deletes expired messages, their attachments and associated key material from the database. It is deletion, not archiving.
Yes. End-to-end encryption needs a key on both ends, so both sender and recipient sign in with just an email — no phone number, no card.
The free plan gives you 10 sealed messages a month with timers up to 24 hours — full encryption, no card required. Pro is $15/month for unlimited messages, every timer, and encrypted file attachments.