About 1x1.im
Real privacy for one-to-one chat — why we built this messenger
Why 1x1 exists
1x1 started from a simple frustration: many apps talk about privacy, but still ask for a phone number or email, keep long chat histories on their servers, and leave a trail of logs. That is not real privacy when the conversation is sensitive.
We wanted a place where two people can talk one-to-one without turning the chat into a permanent file in someone else’s cloud — and without tying the account to a real-world identity.
The mission is modest and clear: give you a private channel for the things you would rather not leave behind in everyday messengers.
Fake privacy vs real privacy
A lot of products offer privacy theater. They may encrypt the path to their servers, then still require a phone or email at signup, store message history for “convenience,” and keep operational logs that map who talks to whom.
That can feel private. Architecturally it often is not: the provider (or anyone who can pressure them) may still hold readable archives, recovery paths, or rich metadata.
Real privacy for private talk means different defaults: conversation content for the people in the chat, recovery secrets only you hold, and a product that is not built as a searchable diary of everyone’s messages.
- Phone or email at registration is an identity anchor — not anonymity.
- Cloud chat archives “for sync” are still readable stores of private talk.
- Marketing words without hard product limits are not a security model.
What 1x1 is
1x1 is a privacy-first one-to-one messenger. The official client is a progressive web app (PWA) at 1x1.im — installable on your device, no app-store account required for the product itself.
You get a User Identification Number (UIN) — a numeric identity for the network — without giving a name, phone, or email. Anyone can start using it without revealing who they are offline.
Chats are one-to-one by design. Contacts are bilateral: both sides accept before a normal conversation path opens. That reduces cold spam and unwanted reach.
Cryptography, simply
Message content is protected with modern end-to-end cryptography on your device. Keys for reading your chats are not held by us as a readable master key to your conversations.
We use strong public-key cryptography from the same family of elliptic-curve technology used to secure systems like Bitcoin’s network (for example Ed25519-style signatures for identity and API authenticity). That does not mean 1x1 is a cryptocurrency. It means we rely on battle-tested crypto primitives, not marketing slogans.
Transport to our servers uses HTTPS/WSS. That protects the pipe. End-to-end encryption protects the content between people — those are different layers, and both matter.
What we do not keep
We do not ask for personal data such as legal name, phone, or email to register or chat.
We do not store message plaintext on the server. Encrypted envelopes for offline delivery exist only as needed for delivery, not as a permanent open diary.
In production we do not run user activity journals or identity-linked message logs. History lives primarily on your devices (local-first). If you clear site data or lose your recovery phrase, the server cannot rebuild your private chat content for you.
Recovery uses a 12-word seed phrase you control. Support cannot “reset your account by email” and impersonate recovery the way many consumer apps can.
Who this is for
Anyone who wants a separate private channel outside work apps and mainstream messengers — for family logistics that should not live next to group chat noise, for sensitive personal topics, or simply for the principle that private talk should stay private.
It is not a social network, not a public feed, and not SMS. It is 1-to-1 messaging with privacy as the product default.
Our mission
Create a channel where you can discuss, one-to-one, what you would rather not leave as permanent records in other messengers.
Keep registration free of phone and email. Keep identity recovery in the user’s hands. Keep the operator from being a readable archive of private conversations.
Stay honest: no product is perfect privacy. We design so that real privacy is the default path — not an expensive toggle on top of a data machine.
Community and handbook
For guides and longer privacy essays, see the community forum at 1x1.forum — including the public Handbook and editorial long-reads. The messenger itself remains at 1x1.im.