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LocalSendAlterSend
Free

Free and open source under the Apache 2.0 licence, with no advertising or trackers.

 Free

The client is open source under Apache-2.0; no paid tier is mentioned on the homepage.

Windows, macOS, Linux, Android, iOS Windows, macOS, Linux, Android, iOS, Web
  • Works completely offline: files never leave your local network
  • No account, no login and no server to configure
  • Files go device to device with no copy left on a server
  • Recipients can download from a browser link without installing anything
  • Both devices must be on the same network, and some guest or corporate networks block device discovery
  • It sends files, it does not keep folders in sync
  • Both devices must be online at the same time for a direct transfer
  • Transfer speed depends on the sender's own connection
Downloadable app Downloadable app, Web application
Open source Open source
License: Apache-2.0 License: Apache-2.0
No account needed No account needed
Works offline Not stated if it works offline

Checked September 20, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.