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O&O RegEditor vs Total Registry: catalog facts
O&O RegEditor	Total Registry
Free Freeware under the O&O end-user licence.	Free Free and open source under the MIT licence.
Windows	Windows
Fast search across the registry Backup functions before making changes	Shows the real Registry, not just the standard view Sort the list view by any column
Windows only Closed source freeware	Windows only Editing the Registry carries risk if you do not know what a key does
Downloadable app	Downloadable app
Closed source	Open source
License: Freeware	License: MIT
Not stated if an account is needed	No account needed
Works offline	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.