Retro Multi Tools

A cross-platform desktop utility for managing, inspecting, modifying, patching & launching retro game ROMs.

Table of Contents

• Downloads
• Platform Guides
• Documentation
• Features
• Supported Systems
• Keyboard Shortcuts
• Localization
• Building from Source
• Contributing
• License

Downloads

Download the latest release from the Releases page. All release builds are self-contained — no separate .NET runtime installation is required.

Platform	Architectures	Formats
Windows	x64, ARM64	ZIP, Installer (.exe)
Linux	x64, ARM64	ZIP, DEB, RPM, APK, Pacman, AppImage, Snap, Flatpak
macOS	Intel, Apple Silicon	ZIP, PKG, DMG
FreeBSD	x64, ARM64	ZIP, PKG

Platform Guides

• Windows — Extract the ZIP and run RetroMultiTools.exe, or use the Inno Setup installer.
• Linux — See LINUX.md for DEB, RPM, APK, Pacman, AppImage, Snap, and Flatpak instructions.
• macOS — See macOS.md for PKG, DMG, and Gatekeeper instructions.
• FreeBSD — See FreeBSD.md for Linux binary compatibility setup and PKG instructions.

Documentation

For detailed user guides and reference material, see the full documentation.

Guide	Description
Installation	Download and install on all platforms
First Steps	Get up and running in minutes
ROM Browser Guide	Browse, manage, and launch ROMs
Big Picture Mode	Fullscreen, controller-friendly ROM library
Keyboard Shortcuts	All shortcuts in one place
Troubleshooting	Common issues and solutions

Features

Browsing & Inspection

• ROM Browser — Scan directories for ROMs across 46 systems, filter by system, view box art and screenshots, send ROMs to remote targets (FTP, SFTP, WebDAV, S3, cloud storage), host on local network via built-in HTTP server
• Big Picture Mode — Fullscreen, controller-friendly library with card grid, favorites, recently played, ROM Info overlay, grid zoom, play statistics, and RetroArch/MAME/Mednafen launching
• ROM Inspector — Detect system type from headers, parse detailed header info, fetch artwork from Libretro Thumbnails
• Hex Viewer — View ROM contents in hex with ASCII sidebar, page navigation, offset jump, byte pattern search

Patching

• ROM Patcher — Apply IPS (with RLE), BPS (with CRC32 validation), and xDelta/VCDIFF (RFC 3284) patches
• IPS Patch Creator — Create IPS patches by comparing original and modified ROMs with RLE compression (up to 16 MB)

Conversion & Extraction

• N64 Format Converter — Convert between .z64, .n64, and .v64 byte orders with auto-detection
• ROM Format Converter — Add/remove copier headers, fix iNES headers, convert disc images to CHD or RVZ; single file or batch
• Save File Converter — Convert between save formats (.sav, .srm, .eep, .fla, .sra), swap endianness, pad/trim for flash cart compatibility
• Archive Manager — Extract from ZIP/RAR/7z/GZip, create ZIP archives; batch extraction and creation
• Split ROM Assembler — Reassemble split ROM files (.001/.002, .part1/.part2, .z01/.z02)

Verification & Analysis

• Checksum Calculator — Compute CRC32, MD5, SHA-1, SHA-256 with streaming I/O for large files
• ROM Comparer — Byte-by-byte binary comparison with mismatch offset reporting
• DAT Verifier — Verify ROMs against No-Intro/TOSEC DAT files by CRC32, MD5, or SHA-1; single or batch
• DAT Filter — Filter DAT entries by category, region, language; 1G1R deduplication; export as Logiqx XML
• Dump Verifier — Check for overdumps, underdumps, blank regions, bad headers, and size validation
• Duplicate Finder — Find duplicate ROMs by CRC32 hash, show wasted space, delete duplicates with confirmation
• Batch ROM Hasher — Hash all ROMs in a directory; export as CSV, text, SFV, or MD5 sum file
• Security & DRM Analysis — Detect region locking, copy protection (10NES, CIC, TMSS, etc.), and validate internal checksums; single or batch
• GoodTools Identifier — Decode GoodTools filename tags (country codes, dump status, special codes)

ROM Management

• Header Export — Export ROM header info to text or CSV; batch export with system summary
• SNES Copier Header Tool — Detect, add, and remove 512-byte copier headers
• Batch Header Fixer — Fix headers for 19 systems (SNES, NES, GB/GBC, GBA, Mega Drive, N64, DS, and more)
• ROM Trimmer — Trim trailing padding bytes with power-of-two alignment
• ROM Renamer — Rename ROMs based on header-detected titles; preview before applying; batch support
• Metadata Scraper — Scrape header info and checksums in bulk; export to CSV or text
• ROM Organizer — Auto-sort ROMs into system folders; copy or move mode; skip duplicates

Cheats & Emulation

• Cheat Code Converter — Decode/encode Game Genie, Pro Action Replay, GameShark, CodeBreaker, and raw codes for 15+ systems
• Emulator Config Generator — Generate configs for RetroArch, Mesen, Snes9x, Project64, mGBA, Kega Fusion, Mednafen, Stella, FCEUX, and MAME

Disc Tools

• Disc Burning & Image Creation — Burn disc images or data to optical media, create ISOs from discs or files; cross-platform (IMAPI2, cdrecord/wodim, hdiutil/drutil)

USB Tools

• USB Drive Management — File explorer, format drives (FAT/FAT32/exFAT/NTFS, MBR/GPT), write/create disk images; cross-platform

MAME

• MAME Integration — Auto-detect MAME path, launch arcade ROMs, Discord Rich Presence
• MAME Configurator — Generate and manage MAME configuration settings
• ROM Set Auditor — Audit ROM sets against MAME XML for completeness, checksums, and clone relationships
• CHD Verifier — Validate CHD v3/v4/v5 headers, checksums, and parent dependencies; single or batch
• CHD Converter — Compress disc images to CHD or decompress back; multi-processor support
• DAT Editor — Edit Logiqx XML DAT files: machines, ROMs, disks, samples, with search and statistics
• ROM Set Rebuilder — Rebuild ROM sets in Split, Non-Merged, or Merged mode from loose files or ZIPs
• Dir2Dat Creator — Create DAT files from directories with CRC32/SHA-1/MD5 checksums and CHD support
• Sample Auditor — Audit MAME sample sets for missing WAV files and shared sample references

RetroArch

• RetroArch Integration — Auto-detect path, launch ROMs with core selection, core downloader (official buildbot)
• RetroArch Configurator — Generate and manage RetroArch configuration settings
• RetroArch Playlist Creator — Create/edit .lpl playlists with thumbnail downloading from Libretro
• RetroArch Shortcut Creator — Create desktop shortcuts (.lnk, .desktop, .command) with core and icon selection
• RetroAchievements Writer — Create/edit RACache achievement files with validation and 78 console IDs

Mednafen

• Mednafen Integration — Auto-detect path, launch ROMs with automatic module selection for 13 systems, Discord Rich Presence
• Mednafen Configurator — Generate and manage Mednafen configuration settings

Analogue Hardware

• Analogue Pocket — Manage openFPGA cores, export screenshots, backup/restore saves, extract Game Boy Camera photos, generate library images, SD card validation
• Analogue Mega SG — Generate custom fonts, convert save files with endianness swapping
• Analogue NT / Super NT — Generate custom fonts, repair NES ROM headers
• Analogue 3D — Manage N64 Game Paks with per-game display/hardware settings and custom label artwork

Settings & System

• Application Updates — Auto-check for updates with in-app download and external updater process
• Controller Profiles — Download SDL2 controller profiles from SDL_GameControllerDB
• SDL2 Gamepad Mapping Tool — Step-by-step wizard to create custom controller mappings for Big Picture Mode
• Gamepad Key Mapper — Map gamepad inputs to keyboard/mouse/scripts/macros with multi-profile system, auto-profile rules, and macro recording
• Discord Rich Presence — Show current game and system in Discord status during RetroArch, MAME, or Mednafen gameplay
• Native Menu — Platform-native application menu on macOS and Linux
• System Tray — Minimize to tray during gameplay with auto-restore when emulator exits

Supported Systems

46 consoles, computers, and handhelds are supported. See full system reference for the feature coverage matrix (header parsing, security analysis, dump verification, cheat codes, header fixing).

System list with file extensions

System	Extensions
Amiga CD32	.iso, .cue
Amstrad CPC	.dsk, .cdt, .sna
Arcade (MAME)	.zip, .7z
Atari 2600	.a26
Atari 5200	.a52
Atari 7800	.a78
Atari 800 / XL / XE	.atr, .xex, .car, .cas
Atari Jaguar	.j64, .jag
Atari Lynx	.lnx, .lyx
Coleco ColecoVision	.col, .cv
Fairchild Channel F	.chf
Game Boy	.gb
Game Boy Advance	.gba
Game Boy Color	.gbc
Mattel Intellivision	.int
Memotech MTX	.mtx, .run
MSX	.mx1
MSX2	.mx2
NEC PC-88	.d88, .t88
Nintendo 3DS	.3ds, .cia
Nintendo 64	.z64, .n64, .v64
Nintendo 64DD	.ndd
Nintendo DS	.nds
Nintendo Entertainment System (NES)	.nes
Nintendo GameCube	.gcm, .iso
Nintendo Virtual Boy	.vb, .vboy
Nintendo Wii	.iso
Oric / Atmos / TeleStrat	.tap
Panasonic 3DO	.3do, .iso, .cue
PC Engine / TurboGrafx-16	.pce, .tg16
Philips CD-i	.iso, .cue
Radio Shack Color Computer	.ccc
Sega 32X	.32x
Sega CD	.iso, .cue
Sega Dreamcast	.cdi, .gdi, .iso, .cue
Sega Game Gear	.gg
Sega Master System	.sms
Sega Mega Drive / Genesis	.md, .gen, .bin
Sega Saturn	.iso, .cue
SNK Neo Geo	.neo
SNK Neo Geo CD	.iso, .cue
SNK Neo Geo Pocket / Pocket Color	.ngp, .ngc
Super Nintendo (SNES)	.smc, .sfc
Thomson MO5	.mo5, .k7, .fd
Tiger Game Com	.tgc
Watara Supervision	.sv

Keyboard Shortcuts

Shortcut	Action
Ctrl+F / Ctrl+K	Focus sidebar search
Escape	Clear search or unfocus
F1	Open guided tour overlay

Big Picture Mode — Arrow keys to browse, Enter/Space to launch, F to toggle favorite, I for ROM Info, +/− to zoom grid, H or ? for help overlay, Tab to search, Escape to exit. Full gamepad support via SDL2.

See all keyboard shortcuts for the complete reference.

Localization

Available in 20 languages: English, Spanish, French, German, Portuguese, Italian, Japanese, Chinese (Simplified), Korean, Russian, Dutch, Polish, Turkish, Arabic, Hindi, Thai, Swedish, Czech, Vietnamese, Indonesian.

Building from Source

Requires the .NET 8 SDK.

git clone https://github.com/SvenGDK/RetroMultiTools.git
cd RetroMultiTools
dotnet build
dotnet run --project RetroMultiTools

The solution contains two projects:

Project	Description
RetroMultiTools	Main Avalonia desktop application
RetroMultiTools.Updater	External updater — applies downloaded updates after the main app exits

See Building from Source for publish commands and platform-specific notes, and Project Structure for the full architecture overview.

Contributing

Contributions are welcome! To get started:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/my-feature)
3. Make your changes and verify the build passes (dotnet build)
4. Commit and push to your fork
5. Open a pull request

Please see Building from Source for development setup and Project Structure for an overview of the codebase.

License

BSD 2-Clause License — see LICENSE for details.