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Wormhole File TransferAlterSend
Free

Free and open source under the GPL-3.0-or-later.

 Free

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

Android Windows, macOS, Linux, Android, iOS, Web
  • No file size limit stated
  • Pairing by QR code or passphrase
  • Files go device to device with no copy left on a server
  • Recipients can download from a browser link without installing anything
  • Little documentation in the available research
  • Android only in the listed source
  • 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: GPL-3.0-or-later License: Apache-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked October 2, 2026

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