Overview:
LocalSend is a free, open-source, cross-platform application for sharing files and messages with nearby devices over a local network without requiring an internet connection. It uses a REST API and HTTPS encryption with on-the-fly TLS/SSL certificates for secure communication, operating without reliance on external servers. The app is available for Android, iOS, macOS, Windows, Linux, and Fire OS, and targets users who need a fast, reliable, and direct peer-to-peer local file transfer tool.
Core Features:
Local Network Transfer: Enables file and message sharing between devices on the same local network without an internet connection.
Secure Communication: Uses a REST API with HTTPS encryption; TLS/SSL certificates are generated on the fly on each device.
Cross-Platform Support: Provides native clients for Android, iOS, macOS, Windows, Linux, and Fire OS.
No External Server Dependency: Operates directly between devices on the local network, eliminating the need for third-party servers.
Portable Mode: Allows storing settings in a
settings.jsonfile located in the same directory as the executable (introduced in v1.13.0).Hidden Start: Supports starting the app hidden in the system tray using the
--hiddenflag (updated in v1.15.0).
Use Cases:
Developers and self-hosters needing a direct, offline method for transferring files between devices on a local network.
Users in environments with limited or no internet access who require reliable local peer-to-peer file sharing.
Users on guest networks or networks with AP isolation who need to transfer files between devices after disabling such restrictions.
System administrators configuring file transfers across mixed OS environments (Windows, macOS, Linux, Android, iOS) without cloud dependencies.
Why It Matters:
As an open-source alternative to cloud-dependent file-sharing tools, LocalSend focuses on offline, local-network transfers without relying on external servers or internet connectivity. Its cross-platform availability and use of HTTPS encryption for direct device-to-device communication provide a transparent and verifiable approach to local file sharing. The project’s protocol documentation and publicly available source code allow developers to inspect, customize, or integrate its core mechanism into other workflows.
