A cross-platform desktop application for managing Commodore 64 Ultimate, Ultimate 64, Ultimate 64 Elite, and Ultimate-II+ devices. Browse files, mount disk images, stream VIC video/audio, play SID music, and edit device configuration.
Prebuilt binaries for macOS, Windows, and Linux (AppImage) are available on the GitHub Releases page: https://github.com/sandlbn/ultimate64-manager/releases
Required: Enable the following services in the Ultimate / Commodore menu (not in this app): Web Remote Control, FTP File Service, Ultimate DMA Service, and Ultimate Ident.
If these services are disabled, Ultimate64 Manager will not be able to connect.
- Dual-Pane File Browser – Local and remote file browsing side by side
- FTP File Transfer – Upload/download files via FTP with multi-file selection
- Remote Directory Browser – Browse the Ultimate filesystem without mounting disks
- Disk Image Viewer – Display D64/D71 directory contents (C64-style listing)
- Disk Management – Mount D64, D71, D81, G64, G71, G81 images to Drive A/B
- Run Programs – Direct load and run for PRG, CRT, and SID files
- Supported File Types – D64, D71, D81, G64, G71, G81, PRG, P00, CRT, SID, MOD, XM, S3M, TAP, T64, REU, ROM, BIN, CFG, ZIP, and firmware updates (U2L, U2P, U2R, U64, UE2)
- Music Player – Play SID and MOD files with playlist support
- Shuffle and repeat modes
- Subsong navigation for multi-tune SID files
- Song length database support (HVSC Songlengths.md5)
- True pause/resume (freezes C64)
- Configurable default song duration
- Video Streaming – Real-time VIC video with audio
- Fullscreen mode (double-click or Opt+F / Alt+F)
- Screenshot capture to Pictures folder
- Unicast and multicast support
- Audio Streaming – SID audio output via UDP
- Memory Editor – Read and write C64 memory in real-time
- Quick access to common locations (Screen, VIC-II, SID, CIA, Zero Page, etc.)
- Hex, ASCII, Decimal, Binary display modes
- Search for byte patterns or ASCII text
- Fill memory ranges
- Click-to-edit bytes
- Configuration Editor – Edit Ultimate configuration settings
- Device Discovery – Automatic network discovery of Ultimate devices
- Backup & Restore – Full configuration backup and restore
- Machine Control – Pause, Resume, Reset, Reboot, Power Off
- Remote Keyboard Input – For BASIC only
- Assembly64 Browser – Search the Assembly64 API (aggregates CSDB, HVSC, c64.org, OneLoad64, Gamebase64 and more)
- Filter by type, source, rating, recency, and sort order — no AQL knowledge required
- Save named searches and star favorites for one-click recall
- View release details with screenshot preview (CSDB-sourced entries) and file listings
- Run PRG, CRT, SID, and disk images directly on the device
- Mount disk images with drive (8/9) and mode (RO/RW) selection
- Extract ZIPs and run/mount their contents
- Open original CSDB release pages in the browser for scene comments
| Shortcut | Action |
|---|---|
Opt+F / Alt+F |
Toggle video fullscreen |
ESC |
Exit fullscreen |
The music player can use the HVSC Songlengths.md5 database for accurate song durations. You can download it from the Music Player tab or place it manually at:
- Windows:
%APPDATA%\ultimate64-manager\Songlengths.md5 - macOS:
~/Library/Application Support/ultimate64-manager/Songlengths.md5 - Linux:
~/.config/ultimate64-manager/Songlengths.md5
Screenshots are saved to:
- Windows:
Pictures\Ultimate64\ - macOS:
~/Pictures/Ultimate64/ - Linux:
~/Pictures/Ultimate64/
- Rust 1.81+
- Linux (audio support required for streaming):
sudo apt-get update && sudo apt-get install -y libasound2-dev- For macOS bundle:
cargo install cargo-bundle# Clone
git clone https://github.com/sandlbn/ultimate64-manager.git
cd ultimate64-manager
# Build
cargo build --release
# macOS bundle
cargo bundle --releaseStreaming requires a wired Ethernet connection. Wi-Fi is not supported.
MIT License
- Ultimate64 team
- Ultimate64 Rust Library
- Iced GUI framework