Side by side
c64js vs simple-emu-c64
Both stand on commodore 64 emulators. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Self-hostedWeb
c64js offers a free way to try some C64 programs in a browser. Its proof-of-concept status and missing hardware features limit compatibility and sound and graphics support.
Visit c64js Free plan LinuxMacWeb+1
simple-emu-c64 focuses on console-based Commodore and 6502 programs across several systems. Its text-only I/O and missing peripheral support make it a narrow fit for users who need more than keyboard and console interaction.
Visit simple-emu-c64The facts
| c64js | simple-emu-c64 | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Self-hosted, Web | Linux, Mac, Web, Windows |
| Lowest paid plan | Not published | Not published |
| Plans published | None | None |
| Maker | Not published | Not published |
| Website | github.com | github.com |
| On commodore 64 emulators | #11 of 31 | #15 of 31 |
c64js: what it does well
- Free to use.
- Browser demo accepts .prg files on the canvas.
- Available for web use or self-hosting.
- Code is released under the MIT license.
- Repository welcomes contributions.
What to know first
- Proof of concept, not a fully working emulator.
- SID sound is not emulated.
- Some VIC-II graphical modes are missing.
- Only a limited number of ROMs work.
simple-emu-c64: what it does well
- Supports six Commodore systems.
- Runs BASIC, assembly, and machine-code programs.
- Includes system-specific memory banking features.
- Reads D64 disk images.
- Free, with source under a revised MIT license.
What to know first
- No graphics, sound, or sprites.
- No joystick, cassette, or serial support.
- D64 support is read-only.
- PET file loading and saving are not implemented.
Alternatives to c64js Alternatives to simple-emu-c64 The whole list