Private rooms by invite link
Create a room and share a link with the people who should have access. There is no account system and no public directory.
Fliporium
Private peer-to-peer chat and file sharing for Windows.
A portable desktop app for encrypted rooms, direct messages, and large-file transfer over WebRTC. No account, no phone number, no advertising profile, and no cloud chat history.
Windows 10 and 11 · no installer · no account required
What Fliporium does
Fliporium is a Windows desktop app for private communication with a small group of people you choose. Create a room, share its invite link, and members connect device-to-device for chat and file transfer. A small signaling service helps peers find each other and exchange the encrypted WebRTC handshake; it does not carry or inspect live message and file contents.
The app is distributed as a single portable .exe. Your
identity, local message history, settings, and received files stay on
your machine in the data folder next to the app.
Core capabilities
Peer-to-peer file transfer
Send large files directly between devices over the same encrypted WebRTC channel used for messages.
End-to-end encrypted content
Room content is sealed with a key carried in the invite link fragment, which browsers do not send to the server.
Offline delivery
Messages sent while a peer is offline can wait on the signaling server as encrypted ciphertext until that peer reconnects.
Local history and search
Chat history is stored locally in SQLite with full-text search, message actions, file previews, and optional multi-device sync.
The docs cover installation, invite links, file transfer, search, Twin Mode, troubleshooting, and the security model in more detail.
Privacy model
Fliporium is designed so the server coordinates connections without becoming a message database. Live conversations and file transfers use peer-to-peer WebRTC data channels. The signaling server can see limited connection metadata, but not the plaintext content of rooms, direct messages, or files.
The exceptions are deliberately narrow and still encrypted: offline messages can be stored temporarily as sealed blobs, and restrictive networks may use TURN relay traffic. In both cases, the server handles ciphertext. See the privacy page for the full data handling details.
Get started
-
Download.
Save
fliporium.exeanywhere on a Windows 10 or 11 machine. - Launch. Run the app. It creates a local identity and data folder on first start.
- Create or join a room. Share an invite link, or paste one you received. See how invites work.