Compare software

Zen BrowserWavebox
Free

Free and open source, funded by donations.

 Freemium

A limited free tier is available. Full use requires a paid subscription.

Windows, macOS, Linux Windows, macOS, Linux
  • Vertical tabs, workspaces and split view built in, no extensions needed
  • Firefox engine, so Firefox extensions and containers work
  • It keeps you signed into several accounts of the same service at once without profile switching, which ordinary…
  • Young project; interface changes between releases and bugs surface
  • A small team maintaining a Firefox fork is a real long-term risk
  • It is closed source, and the free tier is limited enough that heavy use means a subscription.
Downloadable app Downloadable app
Open source Closed source
License: MPL-2.0 License not stated
No account needed Not stated if an account is needed
Needs internet Not stated if it works offline

Checked September 21, 2026

Checked September 22, 2026

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