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OneTab vs Tab Manager Plus: catalog facts
OneTab	Tab Manager Plus
Free Free to use. The software is closed source.	Free Free, with source code published on GitHub.
Browser extension	Browser extension
One click clears a runaway tab bar without losing anything Lists can be named, locked and shared	Overview of all tabs across windows Search to find a tab quickly
Closed source, and the shared-list feature uploads your URLs to their server Restoring a large list reopens everything at once	Small project maintained mainly by one developer
Browser extension	Browser extension
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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