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Flow Browser vs Nordstjernen: catalog facts
Flow Browser	Nordstjernen
Free A Raspberry Pi preview is offered as a download; the page does not state a price.	Free Free to download; the source is available but not under an open-source licence.
Linux	Windows, macOS, Linux, Android, iOS
Independent engine not based on Chromium, WebKit or Gecko Multithreaded layout that scales with CPU cores	Independent engine not based on Chromium, Gecko or WebKit Development tracked against the HTML specification
Public download is a preview for the Raspberry Pi Aimed mainly at embedded and TV products rather than everyday desktop use	Source-available rather than open source; Northstar is the GPL sibling A from-scratch engine may not render every site correctly
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Source-available
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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