cc65 - a freeware C compiler for 6502 based systems —

A workbench for developing 6502 code

Commodore KERNAL emulator, to run C64/C128 etc. command line applications on UNIX

vc64web - Commodore C64 Emulator for iPad iPhone Android and the Web with CSDb access for thousands of demos at your fingertip.

binary deployment of virtualC64Web aka vc64web

64tass - cross assembler for 6502 etc. microprocessors - by soci/singular - [git clone from the original sourceforge repo]

Commodore 6502ASM, the original 6502/65C02/65CE02 Assembler used by Commodore for C65 project

Original source code of various Commodore computers and peripherals.

Commodore 64 emulator for Windows

A bare metal Commodore 64 emulator for the Raspberry Pi with true 50hz/60hz smooth scrolling, low input latency and better audio/video sync.

A git mirror of the official VICE subversion trunk.

Multiplatform Commodore 64 and 264 family emulator written in C++ using SDL2.

RAD Expansion Unit for C64/C128

MOS CPU Replacer – replace rare/expensive/unreliable MOS CPUs

A replacement RF modulator for the Commodore 64 longboard variants

GeckOS version 2, a multi-tasking and multithreading operating system for the 6502

the official cc65 documentation

C64 Commodore Library 64tass

Simple Console 6502/C64 Emulator written in C++ for Portability (ported from simple-emu-c64) ***AND see branches for embedded, LCD versions

SIDKick pico is an inexpensive dual-SID-replacement for the C64 and C128

The fresher build on the net :D

Cartridge for the Commodore 64 that packs a punch

Java C64 Emulator (and disassembler)

GUI64 is a graphical user interface for the C64.

Commodore 64 VIC-II 6567/6569 Replacement Project

Macro assembler with support for several 8-bit microprocessors

WebPage for https://github.com/floooh/chips-test

Webpage for https://github.com/floooh/v6502r