Hex Fiend

7.0easy start · #5 of 31
in Hex Editors

Runs on Mac.

Hex Fiend is ranked #5 of 31 in hex editors on The Geeks Club. It runs on macOS. There is a free plan.

Hex Fiend plans and pricing

Hex Fiend Free macOS only · open source · BSD-style license hexfiend.com · 1 Oct 2026

Hex Editor Neo 0 of 4 in the starter kit Lesson 17.5 REHex 0 of 4 in the starter kit Lesson 27.2 010 Editor 0 of 4 in the starter kit Lesson 37.0 BinEd 0 of 4 in the starter kit Lesson 47.0 ImHex 0 of 4 in the starter kit Lesson 66.9 Synalyze It! 0 of 4 in the starter kit Lesson 76.9

Purpose: Hex Fiend is a fast, clever open-source hex editor for macOS.
Editing: It supports inserting, deleting, rearranging, and overwriting binary data.
Large files: Hex Fiend can handle files as large as the user can create, and has been tested on files up to 118 GB.
Memory use: It does not keep files in memory and does not require the entire file to be loaded.
Search: The editor provides fast searching through large files.
Binary diff: It compares files while accounting for insertions and deletions.
Saving: Smart saving avoids rewriting unchanged portions and does not require temporary disk space.
Data inspector: The data inspector interprets values as signed or unsigned integers and floating-point numbers in big- or little-endian formats.
Embeddable framework: Hex Fiend's framework lets applications embed hex and data views under a permissive BSD-style license.
Current download: The official site lists Hex Fiend 2.18.1 and requires macOS 10.14.6 or later.
Privacy: The Mac App Store distribution collects no data and performs no network requests.
Update checks: The direct-download distribution uses Sparkle to check for new versions without collecting or storing user data.
Security: Hex Fiend has been notarized for added security on macOS 10.14 and later.
Origin: The maker's 2006 announcement describes Hex Fiend as free and developed as an experiment in handling huge files.
Price from: Free

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