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Okteta vs Reverse Engineers' Hex Editor: catalog facts
Okteta	Reverse Engineers' Hex Editor
Free Free and open source, licensed under GPL-2.0 or GPL-3.0.	Free Free and open source under GPL-2.0.
Linux	Windows, macOS, Linux
Structures tool for decoding binary formats with custom definitions Built-in checksum and hash calculator	Designed around reverse engineering work Extensible with Lua plugins
Best integrated with a KDE Plasma desktop Project wiki page is not kept up to date	More than a casual user needs for simple byte edits
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0 OR GPL-3.0	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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