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ImHex vs Hex Fiend: catalog facts
ImHex	Hex Fiend
Free Free and open source under the GPL-2.0.	Free Free and open source under the two-clause BSD licence.
Linux	macOS
Pattern Language for decoding file structures Built-in data analysis and visualization	Opens huge files without loading them into memory Insert and delete bytes, not just overwrite
Pattern Language takes time to learn More complex than a basic hex viewer	macOS only Focused on editing rather than full reverse-engineering features
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-only	License: BSD-2-Clause
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 1, 2026

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