I made a free ROM organizer app for Android handhelds: Thor ROM Butler v0.3
Hey everyone,
I wanted to share a small open-source app I’ve been working on for my AYN Thor and other Android handhelds: Thor ROM Butler.
The idea is simple: I got tired of downloading ROM archives and manually sorting everything into the right roms/ folders, so I built an app that helps automate that process.
Thor ROM Butler scans your Download folder for archives and ROM files, detects the system, extracts what needs to be extracted, and moves everything into the correct ES-DE folder structure.
Some features:
Scans for ZIP, 7z, RAR archives and loose ROM files
Detects systems by file extension and magic bytes
Supports ISO, RVZ and CHD header detection
Handles .bin + .cue and .m3u sets properly
Detects BIOS files and ignores them
Shows confidence levels instead of blindly moving files
Never auto-moves unclear files without user approval
Keeps MAME / Neo Geo arcade sets packed
Includes duplicate detection, CRC checks and storage checks
Runs as a foreground service, so it can continue while the screen is off
Supports ES-DE folder conventions
Includes an action log and update check
Dark Thor-inspired theme with neon blue and gold accents
Right now it supports 23 systems, including NES, SNES, Game Boy, PlayStation, Sega systems, Amiga, C64, Arcade and Switch.
The app is free, open source, and available in English and German.
I’d love to get feedback, bug reports, or suggestions for more systems and edge cases.
APK is available in the Releases tab.