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DashBeam vs AlterSend: catalog facts
DashBeam	AlterSend
Free Free and open source under the AGPL-3.0 licence.	Free The client is open source under Apache-2.0; no paid tier is mentioned on the homepage.
Windows, macOS, Android, Web, Command line	Windows, macOS, Linux, Android, iOS, Web
No size limits and no cloud storage in between End-to-end encryption with integrity checks and resumable transfers	Files go device to device with no copy left on a server Recipients can download from a browser link without installing anything
Sender and receiver need to be online at the same time Recently renamed, so older guides refer to AltSendme	Both devices must be online at the same time for a direct transfer Transfer speed depends on the sender's own connection
Downloadable app, Web application	Downloadable app, Web application
Open source	Open source
License: AGPL-3.0	License: Apache-2.0
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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