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PairDrop vs Send: catalog facts
PairDrop	Send
Free Free and open source under the GPL.	Free Free and open source under the MPL. Hosting is separate.
Web, Self-hosted	Web, Self-hosted
No app, no account; both sides just open a page Pairing codes make transfers work across different networks	Files are encrypted in the browser, so the server never sees the contents Links expire by time or download count automatically
Connections may fall back to a relay when direct peer-to-peer fails Both devices must have the page open at the same time	Public instances come and go; self-hosting is the reliable option Upstream development is intermittent
Web application, Self-hosted	Self-hosted, Web application
Open source	Open source
License: GPL-3.0	License: MPL-2.0
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.