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Send vs PairDrop: catalog facts
Send	PairDrop
Free Free and open source under the MPL. Hosting is separate.	Free Free and open source under the GPL.
Web, Self-hosted	Web, Self-hosted
Files are encrypted in the browser, so the server never sees the contents Links expire by time or download count automatically	No app, no account; both sides just open a page Pairing codes make transfers work across different networks
Public instances come and go; self-hosting is the reliable option Upstream development is intermittent	Connections may fall back to a relay when direct peer-to-peer fails Both devices must have the page open at the same time
Self-hosted, Web application	Web application, Self-hosted
Open source	Open source
License: MPL-2.0	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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