Z64K

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Z64K is ranked #8 of 30 in Commodore 64 emulators on Inferse. It runs on Linux, macOS, Windows.

Compared on Commodore 64 emulators

Free plan: Yesz64k.com
Supported platforms: Windows, macOS and Linux via Java runtimez64k.com
Disk and tape formats: D64, D71, G64, G71, IMD and CRTz64k.com
Built-in debugger: Yesz64k.com
Emulated C64 variants: Commodore 64z64k.com

Facts

Emulated systems: Z64K describes pixel exact emulation of the Commodore 128, Commodore 64, Spectrum 48/128K, VIC 20, and Atari 2600.z64k.com · 3 Oct 2026
Runtime: The site says Z64K should run on any platform with an updated Java runtime environment and requires JRE 8 or better.z64k.com · 3 Oct 2026
Download: The homepage lists Z64K.jar and companion command-line, changelog, and quick-guide files for download.z64k.com · 3 Oct 2026
C128 controls: The emulator supports C128-specific keyboard shortcuts, including toggling its second display and switching 40/80 display mode.z64k.com · 3 Oct 2026
SID Analyzer: The changelog says version 2 added a SID Analyzer with waveform, envelope, oscillator, and combined display modes.z64k.com · 3 Oct 2026
Disk image support: The changelog documents support for loading and saving G71 images, including saving MFM tracks, and support for loading IMD images.z64k.com · 3 Oct 2026
Virtual filesystem limit: The changelog says the Virtual FS scratch command simulates deletion but does not currently delete files from the host file system.z64k.com · 3 Oct 2026
Experimental feature: The changelog describes the Virtual FS device as experimental and still a work in progress.z64k.com · 3 Oct 2026
Support: The homepage invites users to contact the maker with feedback or questions via its contact page.z64k.com · 3 Oct 2026
Recent changelog entry: The homepage changelog lists a C128 VICIIe IRQ flag fix dated 14 April 2025.z64k.com · 3 Oct 2026
Purpose: Z64K describes itself as providing pixel exact emulation of the Commodore 128, Commodore 64, Spectrum 48/128K, VIC 20, and Atari 2600.z64k.com · 3 Oct 2026
Platform compatibility: The maker says Z64K should run on any platform with an updated Java runtime environment installed.z64k.com · 3 Oct 2026
Linux setup: Linux users might need to change the Z64K.jar file permissions to allow execution.z64k.com · 3 Oct 2026
Keyboard controls: Listed shortcuts include fullscreen, clipboard text copy and paste, reset, mouse capture, and warp mode.z64k.com · 3 Oct 2026
C128 display controls: For C128, ALT+O toggles VICIIe/VDC output to the main screen and ALT+2 toggles the second display.z64k.com · 3 Oct 2026
C128 keyboard: The page describes extended C128 keys, including function key mappings and an option to enable or disable extra keys.z64k.com · 3 Oct 2026
Site updates: The maker says the changelog includes changes not shown on the homepage.z64k.com · 3 Oct 2026