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Sashfold vs Flow Browser: catalog facts
Sashfold	Flow Browser
Free Free and open source under the BSD-2-Clause licence.	Free A Raspberry Pi preview is offered as a download; the page does not state a price.
Windows, macOS, Linux	Linux
Independent engine with no third-party code No telemetry, sponsored tiles, account or cloud AI	Independent engine not based on Chromium, WebKit or Gecko Multithreaded layout that scales with CPU cores
Early stage, with incomplete web compatibility No self-updater	Public download is a preview for the Raspberry Pi Aimed mainly at embedded and TV products rather than everyday desktop use
Downloadable app	Downloadable app
Open source	Closed source
License: BSD-2-Clause	License not stated
No account 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 October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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