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Zervo vs Lobo Evolution: catalog facts
Zervo	Lobo Evolution
Free Free and open source under the MPL-2.0 licence.	Free Free and open source under the MIT licence.
Windows, macOS, Linux	Windows, macOS, Linux
Uses Servo rather than Chromium or Gecko Sidebar workspaces with several layouts	Independent rendering engine written in pure Java CobraEvolution engine can be embedded in Java programs
Some sites do not work because Servo is incomplete Linux and Windows builds are untested	Web standards support is incomplete, so many sites render poorly Requires a Java runtime
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	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 October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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