Frsnx
How Frsnx works
Most file-sharing services are storage services in disguise: you upload a file so the company can copy it around, and someone else downloads it later. That architecture is what makes the cloud lake grow, what makes “link expires in seven days” feel like a threat, and what lets a service read your files if its keys say so.
Frsnx takes the opposite approach. A transfer is a live handoff:
- A sender publishes an encrypted manifest describing the file and its keyed blocks.
- Participants fetch blocks from each other directly and re-check every block against its digest.
- When all blocks are reassembled and verified, the transfer is complete. There is nothing left in the middle to delete or retain.
The coordination service only ever handles the manifest and the blocked-ciphertext indexes. It cannot reassemble a file without the keys, and it deliberately retains no content after a completed transfer.
Early access
The beta is invite-only so we can keep the protocol honest and the network healthy. If you move sizable files regularly and are comfortable telling us where it hurts, write to hello@mr.frsnx.com and tell us what you transfer. We read every note.