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Dooble vs Otter Browser: catalog facts
Dooble	Otter Browser
Free Free and open source, with optional donations.	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, macOS, Linux	Windows, Linux
Frequent releases with detailed changelogs Built-in domain filtering	Brings traditional desktop browser controls into a Qt application.
Small project with a limited extension ecosystem Interface and features differ from mainstream browsers	Some planned features remain unfinished.
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
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 28, 2026	Official website Full listing and sources Checked September 22, 2026

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