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Reverse Engineers' Hex Editor vs HxD: catalog facts
Reverse Engineers' Hex Editor	HxD
Free Free and open source under GPL-2.0.	Free Freeware at no cost.
Windows, macOS, Linux	Windows
Designed around reverse engineering work Extensible with Lua plugins	Edits raw disks and RAM as well as files No limit on file size
More than a casual user needs for simple byte edits	Windows only Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License: Freeware
No account 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.