Hexgeist

Find meaning in the bytes.

Only for Mac

Free

Mac

A modern Mac hex editor inspired by ResEdit: inspect bytes, discover structures, preview embedded resources, bookmark findings, and edit with confidence. Hexgeist is a modern Mac hex editor inspired by the spirit of ResEdit: open a file, look under the hood, and make sense of what’s inside. Edit bytes in a clean native hex view, inspect decoded values, search and jump quickly, compare changes, and bookmark important ranges so you can find them again. Hexgeist also helps reveal structure without getting in your way, with file format hints, embedded resource discovery, previews, hashes, readable string insights, and a practical side-by-side Lens for understanding the bytes you select. It is built for people who want a serious binary editor that still feels approachable: developers, tinkerers, reverse engineers, archivists, and anyone who occasionally needs to answer “what is actually in this file?” Features include: Native Swift hex editor with insert and overwrite editing Fixed 16-byte rows with address gutter and text translation Bookmarks with notes and color highlights Find, jump, replace, copy, paste, undo, and redo Decoded values for hex, integers, floats, text, and endian-aware inspection Embedded resource detection for images, PDFs, property lists, ZIPs, and Mach-O binaries Preview cards for supported embedded content SHA-256, SHA-1, MD5, and CRC32 hashes File structure hints for common binary formats Compare against saved versions or another file Patch export and apply workflows Native macOS Help Book and keyboard-friendly menus Hexgeist keeps the classic power of a hex editor, but adds enough modern Mac guidance to make binary files feel less like a wall of numbers.

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The developer, James Sodini, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    • James Sodini
    Size
    • 3.6 MB
    Category
    • Developer Tools
    Compatibility
    Requires macOS 26.3 or later.
    • Mac
      Requires macOS 26.3 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 James Sodini
  • Developer Website
  • Privacy Policy