RTHextion v2.1 - Retrogames Translation Hex Editor

A hex editor for retrogames translation and ROMHacking, a tribute to 00's Translhextion by Januschan.

Features

• Translation projects support:
  • Multiple tables support
  • Pointers/data list
  • Original data import/preservation for safe editing and comparison
  • IPS patch generation and import
  • Quick original content view
• Multi-tab workspace with persistent session — open multiple files/projects simultaneously, all tabs and their state saved and restored on restart
• Dock widgets for convenient workflow:
  • Sections dock — organize file structure with nested sections, auto-highlight current section by cursor position, full drag-drop support
  • Pointers dock — search data pointers and navigate to referenced locations with real-time preview
  • Translation tables dock — view, edit, and switch between translation tables without leaving the editor
  • Changes dock — track all modifications to the current file
• Translation tables support with built-in editor and semi-automatic translation tables generation
• Advanced data pointers search and navigation
• Script dump and import with insertion to offset and automatic pointers update; IPS patch generation and import
• Empty file editing — click to create the first byte and immediately start typing
• Byte order switch (big-endian/little-endian/byte-swapped)
• Auto-detect ROM type, default byte order and required pointer arithmetics
• Customizable user interface with 7 languages (English, Russian, French, German, Spanish, Portuguese, Japanese, Chinese)
• UI theme support (light/dark) with customizable colors and fonts
• Sections hierarchical organization with colored highlighting
• Virtual format support with automatic line breaks around sections
• Cross-platform support (Windows, macOS, Linux)

Screenshots

Changes storage and highlighting

Virtual formatting for structured data visualization and editing

Pointers search and navigation with real-time preview and highlighting

Multimodal find/replace with text/hex/table mode and relative search

Automatic pointers search with various pointer types and heuristics, real-time preview and highlighting of found pointers, and navigation to referenced locations

Multibyte characters support and highlighting

Pointers hints in the hex view with referenced data preview

Data offsets with found pointers

Script dump and in-place editing with automatic pointers update and table support

Supported ROM Formats

RTHextion automatically detects ROM type and applies the correct byte order. Supported platforms:

System	Extensions	Default Byte Order	Notes
Nintendo
NES	.nes, .unf, .unif	Little-endian	iNES/NES 2.0
SNES	.smc, .sfc, .swc, .fig	Little-endian	Super Nintendo
Game Boy	.gb	Little-endian	Game Boy/DMG
Game Boy Color	.gbc, .cgb	Little-endian	GBC
Game Boy Advance	.gba, .agb	Little-endian	GBA
N64 (z64)	.z64	Big-endian	Motorola format
N64 (v64)	.v64	Word-swapped	Byte-swapped format
N64 (n64)	.n64	Little-endian	Standard format
Sega
Genesis/Mega Drive	.md, .gen, .smd	Big-endian	Also supports auto-detect by header
32X	.32x	Big-endian	Sega 32X
Master System	.sms	Little-endian	SMS/Mark III
Game Gear	.gg	Little-endian	Sega Game Gear
SG-1000	.sg, .mv	Little-endian	Sega SG-1000
Bandai
WonderSwan	.ws	Little-endian	Monochrome WonderSwan
WonderSwan Color	.wsc, .pc2	Little-endian	WSC
Coleco
ColecoVision	.col, .cv	Little-endian	Coleco
Atari
Atari 2600	.a26	Little-endian	VCS/2600
Atari 5200	.a52, .xfd, .atr, .atx, .cdm, .cas, .xex	Little-endian	5200 and 8-bit
Atari 7800	.a78	Little-endian	ProSystem

Files with extensions .bin or .rom are matched using header heuristics (N64, Mega Drive signature detection). If the type cannot be determined, little-endian is used as a fallback.

Installation

macOS (Intel & Apple Silicon)

Download the .dmg file from Releases, open it and drag RTHextion.app to the Applications folder.

If you get "damaged file" error (especially on Apple Silicon/M1+), open Applications folder, right-click the RTHextion.app in Finder, select "Open" and confirm the dialog. If this doesn't help, open System settings -> Privacy & Security, scroll down until you see an RTHextion mention and allow it to run.

Another option is to open terminal and run: sudo xattr -rd com.apple.quarantine /Applications/RTHextion.app, then run RTHextion as usual.

Windows

Download RTHextion-Windows-x64.zip from Releases, extract wherever you want and run RTHextion.exe.

Linux

Download AppImage from Releases:

• RTHextion-Linux-x86_64.AppImage for x86_64/amd64
• RTHextion-Linux-arm64.AppImage for aarch64/arm64

Run:

chmod +x RTHextion-Linux-*.AppImage
./RTHextion-Linux-x86_64.AppImage

For arm64:

./RTHextion-Linux-arm64.AppImage

License

RTHextion is free software licensed under the GNU General Public License v3.0 (see LICENSE).

RTHextion uses some code from early version of Dax89's QHexView (MIT License) and uses the Qt framework (GPL/LGPL).

This project uses:

• QHexView (MIT License)
• Qt framework (GPL/LGPL)

Ilya 'Road Tripper' Annikov © 2021–2026