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alt-sendme

by tonyantony300 8.5k stars AGPL-3.0Developer Tools
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About alt-sendme

Alt-sendme is a free and open-source file transfer tool that enables direct peer-to-peer transfers without using cloud storage. It allows users to send files and folders of any size or format across local networks or globally, with end-to-end encryption and no account requirements.

The software utilizes QUIC hole punching and NAT traversal techniques to establish secure connections between devices, even across firewalls. It supports resumable transfers, file previews, and broadcasting to multiple recipients. Alt-sendme is built on the Iroh protocol, which provides content-addressed blob storage and transfer capabilities.

Available for Windows, macOS, Linux, and Android, alt-sendme offers a straightforward way to share files privately and efficiently. Users can generate one-time share codes (tickets) to initiate transfers without exposing personal information.

Key features

  • Transfer files or directories of any size or format
  • No accounts or personal information required
  • Peer-to-peer direct transfer without cloud storage
  • End-to-end encryption with QUIC + TLS 1.3
  • Resumable transfers that continue after interruptions
  • Broadcast files to multiple recipients simultaneously
  • File preview and verification before downloading
  • CLI integration with Sendme CLI

Download v0.5.0

Jul 9, 2026
View all 11 versions

Frequently asked questions

Is alt-sendme free?
Yes. alt-sendme is free and open-source software, distributed under the AGPL-3.0 license.
Which platforms does alt-sendme support?
alt-sendme provides downloads for Windows, macOS, Linux, Android.
What is the latest version of alt-sendme?
The latest version is v0.5.0, released on Jul 9, 2026.
What platforms does alt-sendme support?
Alt-sendme is available for Windows, macOS, Linux, and Android. iOS and web versions are in development.
How do I install alt-sendme?
Pre-built packages are available for download from the GitHub releases page, including .exe for Windows, .dmg for macOS, .deb for Linux, and .apk for Android.
Is alt-sendme free to use?
Yes, alt-sendme is completely free and open-source, with no upload costs or size limits.
How does alt-sendme handle security?
Alt-sendme uses end-to-end encryption with QUIC + TLS 1.3 for forward and backward secrecy. It also includes cryptographic identity information in tickets for authentication.

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