⬡ OpenROM v2.0

Universal ROM Compression Suite — by M5 Dev

OpenROM is a Universal ROM Compression Suite built to break the monopoly of proprietary ROM tools. It features a modern two-column UI design, real-time command line terminal logging, batch processing, and direct single-click conversions.

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⬇️ Download

Platform	Official Release (GitHub)	Fast Mirror (SourceForge)
🪟 Windows	OpenROM_Windows_Portable.zip	Download Mirror
🐧 Linux	OpenROM_Linux_x86_64.AppImage	Download Mirror
🍎 macOS Apple Silicon	OpenROM_macOS_arm64.dmg	Download Mirror
🍎 macOS Intel	OpenROM_macOS_x86_64.dmg	Download Mirror

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📖 Documentation & Guides: Check out our Official Wiki for setup guides, Steam Deck setup, and FAQs.

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🎮 Features

• Modern Two-Column Design — Clean split interface with DROP ZONE & Queue on the left, and Conversion Settings / Controls on the right.
• Complete Conversion Matrix — Support for over 15+ conversion paths including ISO, BIN, CUE, GDI, IMG, ECM, CHD, CSO, ZSO, and XISO.
• Live Terminal & Logging — Real-time process logging saved to your OS config directory.
• Auto CUE Generation — Auto-generates CUE files for standalone BIN files missing CUE sheets.
• Auto ECM Output Format — Auto-detects extracted format (ISO/BIN) after ECM decompression.
• Integrity Verification — Automatic post-conversion integrity check for CHD files via chdman verify.
• Drag & Drop — Native drag and drop support for single files and batch folders.

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🔁 Complete Conversion Matrix

Input Format	Output Target	Tool Used	Command Executed
ISO	CHD	chdman	createdvd -i in -o out
ISO	CSO	maxcso	maxcso in -o out
ISO	ECM	ecm	ecm in out
ISO	XISO	extract-xiso	-r in
BIN	CHD	chdman	createcd -i cue -o out (Auto CUE if missing)
BIN	ECM	ecm	ecm in out
CUE	CHD	chdman	createcd -i in -o out
GDI	CHD	chdman	createcd -i in -o out
IMG	CHD	chdman	createdvd -i in -o out
CHD	ISO	chdman	extractdvd -i in -o out
CHD	BIN/CUE	chdman	extractcd -i in -o out.cue
CSO	ISO	maxcso	--decompress in -o out
ZSO	ISO	maxcso	--decompress in -o out
ECM	ISO / BIN	unecm	unecm in out (Auto-detects output format)
XISO	ISO	extract-xiso	-x in -d out

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🛠️ Tools Bundled

Tool	Purpose
chdman	MAME CHD conversion tool
maxcso	PSP/PS2 CSO/ZSO compression
ecm / unecm	Error Code Modulator compression
extract-xiso	Xbox ISO extraction & creation

All tools are bundled for Windows and Linux. No additional setup required.

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🚀 Building & Running

Requirements

• Python 3.10+
• Dependencies in requirements.txt

Running from Source

git clone https://github.com/M5Devs/OpenROM
cd OpenROM
pip install -r requirements.txt
python main.py

Building

# Windows
build.bat

# Linux
chmod +x build.sh && ./build.sh

# macOS
chmod +x build_mac.sh && ./build_mac.sh

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🤝 Contributing

Contributions are welcome! Please read CONTRIBUTING.md for guidelines on how to submit bug reports, feature requests, and pull requests.

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📄 License

OpenROM is licensed under GPL v3 + Commons Clause.

This means:

• ✅ Free to use personally
• ✅ Free to study, modify, and contribute
• ✅ Forks must remain open source (GPL)
• ❌ Cannot be sold or bundled in a commercial product without written permission

For commercial licensing inquiries: github.com/M5Devs/OpenROM

💙 Support OpenROM

If OpenROM saved you time, consider supporting active development:

Donate USDT (TRC20): TWbG9smLbcyTcVod3YsRPyEtWhtQnnu7vC