Reverse Engineers' Hex Editor

Reverse Engineers' Hex Editor

Free · Open sourceLatest versionMacWindows

About Reverse Engineers' Hex Editor

A cross-platform (Windows, Linux, macOS, BSD) hex editor for reverse engineering, and everything else.

An online copy of the manual can be accessed here: solemnwarning.net/rehex/manual/ (opens in a new tab).

Features

  • Large (1TB+) file support
  • Decoding of integer/floating point value types
  • Inline disassembly of machine code
  • Highlighting and annotation of ranges of bytes
  • Side by side comparison of whole files or selections
  • Lua scripting support ([API reference](http://www.solemnwarning.net/rehex/luadoc/))
  • Virtual address mapping support
  • Support for common text encodings (ASCII, Unicode, ISO-8859-X, etc)
  • Import and export of Intel HEX files
  • Bitmap data visualisation
  • Binary Templates for automatically annotating data (similar to 010 Editor)
  • Bit editing/manipulation
  • Checksumming of files/selections

Debian

First, you will need to download my APT signing key to your system:

sudo wget -O /etc/apt/keyrings/solemnwarning-archive-keyring.gpg \ https://solemnwarning.github.io/solemnwarning-archive-keyring.gpg

Add the following lines to your /etc/apt/sources.list file:

deb [signed-by=/etc/apt/keyrings/solemnwarning-archive-keyring.gpg] http://repos.solemnwarning.net/debian/ CODENAME main deb-src [signed-by=/etc/apt/keyrings/solemnwarning-archive-keyring.gpg] http://repos.solemnwarning.net/debian/ CODENAME main

NOTE: Replace CODENAME with the version you're running (e.g. trixie or bookworm).

Finally, you can install the package:

$ sudo apt-get update $ sudo apt-get install rehex

Ubuntu

First, you will need to download my APT signing key to your system:

sudo wget -O /etc/apt/keyrings/solemnwarning-archive-keyring.gpg \ https://solemnwarning.github.io/solemnwarning-archive-keyring.gpg

Add the following lines to your /etc/apt/sources.list file:

deb [signed-by=/etc/apt/keyrings/solemnwarning-archive-keyring.gpg arch=amd64] http://repos.solemnwarning.net/ubuntu/ CODENAME main deb-src [signed-by=/etc/apt/keyrings/solemnwarning-archive-keyring.gpg arch=amd64] http://repos.solemnwarning.net/ubuntu/ CODENAME main

NOTE: Replace CODENAME with the version you're running (e.g. noble for 24.04 or resolute for 26.04).

Finally, you can install the package:

$ sudo apt-get update $ sudo apt-get install rehex

NOTE: Ubuntu users must have the "universe" package repository enabled to install some of the dependencies.

Fedora

$ sudo dnf copr enable solemnwarning/rehex $ sudo dnf install rehex

Description adapted from the project README.

Version
0.64.0
Updated
Apr 4, 2026
Size
15 MB to 20 MB

Open source details

Released
Apr 4, 2026
GitHub stars
2.5K

Community project. Help and bug reports go to the maintainers on GitHub; AppsXi does not provide support for this app.

Support the maintainers

License

Copyleft

GNU GPL 2.0

Use and change it freely; anything built from it must be shared under the same license, with its source.

Read the full license

How this app was checked

AppsXi checks every version before it is listed.

Mac

  • Signed by Daniel Collins (N884NC679R)

    Apple Developer ID team N884NC679R

  • Notarized by Apple

  • Extra macOS protections on (Hardened Runtime)

  • File matches the fingerprint GitHub published

    Show the SHA-256

    64c09dbab8c984f7a2b28d5f5b17ed9b4987d2723f82aaee4bb71a7cd7378356

  • No malware found

    ClamAV 1.5.4 on Oct 18, 2026

Windows

  • Signed by Open Source Developer, Daniel Collins

    Certificate from Certum Code Signing 2021 CA,O=Asseco Data Systems S.A.,C=PL

  • Signature stays valid after its certificate expires

  • 2 of 4 bundled programs are signed

  • File matches the fingerprint GitHub published

    Show the SHA-256

    21c9fdee23a939b11e077b8146a9473d382b3bb4c2820edb40a44cd988cdb052

  • No malware found

    ClamAV 1.5.4 on Oct 18, 2026

1 technical note
  • 2 of 4 bundled executables or libraries are unsigned

Not included yet: installing and watching the app run in a virtual machine.

What these checks do and don't cover

Versions

0.64.0

Checked Oct 18, 2026 · Mac and Windows

DMG · 20 MB, EXE · 15 MB

Checked

Questions about Reverse Engineers' Hex Editor

Is Reverse Engineers' Hex Editor free?

Yes. Reverse Engineers' Hex Editor is free and open source under the GNU GPL 2.0. AppsXi lists the maintainers' official release and does not charge for it.

Is Reverse Engineers' Hex Editor safe to download?

AppsXi downloads every version of Reverse Engineers' Hex Editor from the maintainers' official GitHub release and checks it before it is listed. For version 0.64.0 (checked Oct 18, 2026), the Mac download is signed by its developer and notarized by Apple, the Windows download is Authenticode signed, each file matches the checksum GitHub publishes for the release, byte for byte and a malware scan found nothing.

Does Reverse Engineers' Hex Editor run on Apple silicon Macs?

Yes. Reverse Engineers' Hex Editor has a native Apple silicon build, and it runs on Intel Macs too.

What does Reverse Engineers' Hex Editor need to run?

Reverse Engineers' Hex Editor needs macOS 10.13 or later.

Who makes Reverse Engineers' Hex Editor?

Reverse Engineers' Hex Editor is an open source project by Daniel Collins on GitHub (solemnwarning/rehex). Help and bug reports go to its maintainers there.

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