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Vieb vs Catalyst: catalog facts
Vieb	Catalyst
Free Free and open source, with optional sponsorship of the developer.	Free Free and open source under the MIT licence.
Windows, macOS, Linux	Windows, Linux
Vim-style keybindings, commands and options throughout Built-in ad blocker and privacy settings that work without web requests	Small, minimal browser with a customizable interface Separate stable, beta and LTS release channels
Steep learning curve for anyone not used to Vim Built on Electron rather than a mainstream browser	Small independent project with a much smaller team than mainstream browsers The v5 rewrite is still an early alpha
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
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 September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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