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O&O RegEditor vs Registry Explorer: catalog facts
O&O RegEditor	Registry Explorer
Free Freeware under the O&O end-user licence.	Free Free to download; the author accepts support through GitHub Sponsors and PayPal.
Windows	Windows
Fast search across the registry Backup functions before making changes	Opens multiple hives side by side Reads locked registry files
Windows only Closed source freeware	Windows only and requires .NET 9 Aimed at forensic analysis rather than everyday registry editing
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License not stated
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.