FilePizza

FilePizza is a web app for peer-to-peer file transfers directly between browsers using WebRTC. It avoids an initial upload to a central server, so files are not stored by the service and transfers can be fast and privacy-preserving.

Key Features

• Direct browser-to-browser file transfer over WebRTC (DTLS-encrypted)
• Shareable short/long links for recipients to download
• Multi-file uploads delivered to recipients as a ZIP
• Optional password protection for shared transfers
• Uploader-side progress monitoring and the ability to stop transfers
• Streaming downloads via a Service Worker
• Optional Redis-backed server state for channel metadata
• NAT traversal support via STUN and optional TURN (coturn)

Use Cases

• Sending large files without uploading them to a third-party storage provider
• Quick ad-hoc sharing of files between teammates or devices
• Temporary, link-based distribution where the sender stays online during transfer

Limitations and Considerations

• The uploader must keep the browser open until the transfer completes
• Practical file size limits depend on browser/device memory and stability
• Some networks/NAT setups may require TURN for reliable connectivity

FilePizza is well-suited for lightweight, ephemeral file sharing where you want direct peer-to-peer transfers and minimal server-side storage. It can be deployed as a hosted instance while keeping transfers end-to-end between participants.