Hi Product Hunt,

I built 0trace because I wanted a simpler way to send files directly between two people without uploading them to a server first.

Most file-sharing tools still follow the same flow: upload, wait, generate a link, then hope the other side downloads it in time. That works, but it is slow, and it means your file has to sit on someone else’s infrastructure first.

0trace takes a different approach. It uses WebRTC so files move directly from one browser to another. The server only helps establish the connection. I also added chat in the same session, so you can talk and transfer files in one place instead of switching between tools.

What you can do with it:

- Transfer files directly browser-to-browser

- Chat in the same secure session

- Start instantly with no account or install

- Send large files with streaming support

- Share a simple room link or room code

One important tradeoff: I currently keep it pure P2P. That means some network combinations may fail to connect, especially on restrictive networks. If that happens, both sides need to switch networks and try again. I chose that tradeoff intentionally to keep the transfer direct.

I’d love feedback on three things:

- Is the “no upload step” value immediately clear?

- Does the room creation and join flow feel fast enough?

- Would you trust this over a traditional upload-first file-sharing tool?

Thanks for checking it out.