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Nordstjernen vs Sashfold: catalog facts
Nordstjernen	Sashfold
Free Free to download; the source is available but not under an open-source licence.	Free Free and open source under the BSD-2-Clause licence.
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux
Independent engine not based on Chromium, Gecko or WebKit Development tracked against the HTML specification	Independent engine with no third-party code No telemetry, sponsored tiles, account or cloud AI
Source-available rather than open source; Northstar is the GPL sibling A from-scratch engine may not render every site correctly	Early stage, with incomplete web compatibility No self-updater
Downloadable app	Downloadable app
Closed source	Open source
License: Source-available	License: BSD-2-Clause
No account needed	No account 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 October 2, 2026

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