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Servo vs Nordstjernen: catalog facts
Servo	Nordstjernen
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free to download; the source is available but not under an open-source licence.
Windows, macOS, Linux, Android	Windows, macOS, Linux, Android, iOS
Provides a shell for trying the engine on several platforms.	Independent engine not based on Chromium, Gecko or WebKit Development tracked against the HTML specification
It is a prototype engine rather than a finished everyday browser.	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
Open source	Closed source
License: MPL-2.0	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 22, 2026	Official website Full listing and sources Checked October 2, 2026

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