Privacy Policy

Last Updated: September 2026 • Zero Cloud Storage Guarantee

01 Zero Cloud Storage Principle

FlashPeer was architected from the ground up around a fundamental privacy guarantee: we do not store, view, upload, or process your files on any cloud servers or intermediate databases.

Direct Browser-to-Browser Pipe: When you send a file using FlashPeer, data chunks stream directly from your device's memory to the recipient device's browser over encrypted WebRTC DataChannels. The payload never touches FlashPeer storage.

02 No Accounts & No User Profiles

You can use FlashPeer completely anonymously. We believe file sharing should not require giving away your personal identity.

  • No sign-up, registration, or email addresses required.
  • No passwords, credentials, or phone numbers collected.
  • No tracking cookies, marketing scripts, or advertising profiling.

03 End-to-End Encryption in Transit

All WebRTC communication utilizes industry-standard encryption protocols:

  • DTLS (Datagram Transport Layer Security): Encrypts all channel negotiation and key exchanges.
  • SCTP (Stream Control Transmission Protocol): Delivers ordered and reliable chunk streaming.
  • Because encryption keys are generated directly inside the communicating browsers, neither FlashPeer nor third-party network providers can decrypt or read transferred file contents.

04 Ephemeral Signaling Data

To establish a direct connection between two devices behind routers or firewalls, FlashPeer utilizes a signaling server. What data passes through signaling?

  • A random 5-digit room code to match the two peers.
  • Public IP/port network candidates (ICE candidates) and SDP session offers/answers needed by WebRTC.
  • Signaling data is transient, retained only for the few seconds needed to broker the initial peer handshake, and purged immediately.

05 Local Storage & Device Data

FlashPeer stores your transfer history solely inside your browser's private localStorage on your local device. This data is never sent to our servers. You can clear this history anytime by clicking the "History" button on the homepage.

06 Contact & Policy Updates

If you have any questions regarding FlashPeer's decentralized privacy design or technical architecture, you may inspect the open client-side source code directly in your browser DevTools.