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Zervo vs Sashfold: catalog facts
Zervo	Sashfold
Free Free and open source under the MPL-2.0 licence.	Free Free and open source under the BSD-2-Clause licence.
Windows, macOS, Linux	Windows, macOS, Linux
Uses Servo rather than Chromium or Gecko Sidebar workspaces with several layouts	Independent engine with no third-party code No telemetry, sponsored tiles, account or cloud AI
Some sites do not work because Servo is incomplete Linux and Windows builds are untested	Early stage, with incomplete web compatibility No self-updater
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License: BSD-2-Clause
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.