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Microsoft Edge vs Sleipnir: catalog facts
Microsoft Edge	Sleipnir
Free Free to download and use. The software is closed source.	Free Free to download and use. The software is closed source.
Windows, macOS, Linux, Android, iOS	Windows, macOS
Vertical tabs, tab groups, sleeping tabs and a built-in PDF reader are standard, and it runs Chrome extensions…	Right-button mouse gestures cover most navigation, and the tab thumbnails stay usable even with a hundred tabs open.
The browser Microsoft ships is proprietary, and it pushes Bing, Microsoft accounts and a growing set of promoted…	It is closed source, the documentation is largely Japanese, and the macOS build was paused over a Tahoe…
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is 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 22, 2026	Official website Full listing and sources Checked September 22, 2026

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