Privacy Policy

Last Updated: February 25, 2026

1. Introduction

Welcome to Sendme.alt ("we", "our", or "us"). We respect your privacy and are committed to protecting it through our strict adherence to a Zero-Knowledge architecture. This Privacy Policy outlines our data handling practices.

2. Zero-Knowledge Architecture

Sendme.alt is designed from the ground up as a peer-to-peer (P2P) file transfer service utilizing WebRTC.

  • No Server Transit: Your files are transferred directly between the sender's and receiver's devices. At no point do your files pass through, reside on, or get cached by our servers.
  • End-to-End Encryption: All transfers are secured using WebRTC's mandatory built-in encryption protocols (DTLS and SRTP). We do not have access to the cryptographic keys used to secure your transfer.
  • No Data Retention: Our backend strictly functions as a highly ephemeral signaling server to establish the initial connection. All signaling data, including session tokens and IP metadata used for establishing paths, is instantly destroyed via an atomic cleanup process the moment the connection completes, fails, or is cancelled.

3. Information We Do Not Collect

Because of our operational model, we inherently do not collect, track, or store:

  • Personal Identifiable Information (Names, Emails, Phone numbers)
  • The contents, filenames, or metadata of the files you transfer
  • User accounts or authentication profiles (as we require no sign-up)
  • Persistent logs of transfer activity

4. Information Collected Automatically

To maintain the operational security and stability of our signaling infrastructure, our hosting providers may temporarily collect minimal diagnostic data (such as anonymized IP addresses and request headers) strictly for DDoS prevention, rate limiting, and incident response. This data is not linked to your file transfers and is routinely purged.

5. Cookies and Tracking

Sendme.alt does not use cookies, pixels, or any cross-site tracking technologies.

6. Changes to this Policy

We may update this Privacy Policy occasionally to reflect changes in our operational or legal obligations. We reserve the right to modify this document freely, and continued use of the service constitutes acceptance of these changes.

7. Contact

For privacy inquiries or compliance reporting, please contact us through the appropriate channels linked on our main application interface or GitHub repository.