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NetSurf vs Flow Browser: catalog facts
NetSurf	Flow Browser
Free Free and open source under the GPL version 2.	Free A Raspberry Pi preview is offered as a download; the page does not state a price.
macOS, Linux	Linux
Very small and light on resources Independent layout engine written in C	Independent engine not based on Chromium, WebKit or Gecko Multithreaded layout that scales with CPU cores
Limited support for modern script-heavy websites Not a replacement for a mainstream browser on current sites	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: GPL-2.0	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 September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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