C64Studio is a .NET based IDE specializing in game development for the C64 in assembler and BASIC

GEOS 2.0 ported from C64/128 to 8-bit Atari

Java editor for Commodore 64 sprites. ✏👻

png2prg converts a 320x200 image (png/gif/jpeg) to a c64 hires or multicolor bitmap, charset, petscii, ecm or sprites prg.

Commodore 64 Kernel I/O entry point monitor utility

Commodore 64 type-in programs from sources like Compute! and Compute!'s Gazette

A modern version of VICE PDB monitor

A high-performance, lightweight remote video stream viewer for the Commodore 64 Ultimate and Ultimate-II+ ecosystem. Working on Windows and Linux.

Ultimate Launcher - run stuff on your C64 with U1541 directy from your Desktop

PetPet is a PETSCII editor for Commodore 64 computers. As it is written entirely in Python, it runs on any platform supported by Python (Windows, MacOS, Linux and others).

A port of the Blitz!/Austro-Speed C64 BASIC V2 compiler to JavaScript.

Slide presentation for C64

C64 Ultimax "Dead Test" cartridge ROM with many improvements

This project allows the exchange of files between your local disk and a D64 image (Commodore 64 image disk) . Ce projet permet l'échange de fichiers entre votre disque local et une image D64 (Image de disquette du Commodore 64).

C64 Character Set Editor

crossplatform class to handle .d64 files. Allows complete class access to 1541 disk format. adding files, verify bam, formatting, file extraction, directory contents etc

This project is based on C64-Printfox by Claus Schlereth (MIT License).

cross-platform 6502/65c02 assembler. Full macro and scripting supported. Comes with several samples for commodore 64 graphics , wedge and cartridge including a full version of Pong and port of Sweet16

Mr. V. S. F. Unfreeze takes your VICE VSF snapshot and creates a C64 cartridge CRT file from it.

Speeding up the C64 BASIC V2 PRINT.

c64 basic language server developed with langium and 64bit basic compiler for windows

An automated setup for the C64 Dreams project on Linux.

A fixed cartridge version of the C64 Paradoxon Basic extension.

March U test for the C64

This is a new basic implementation and expansion, with userful features and examples.

🎥 Stream VIC-II video output from your Ultimate 64 to your PC with low latency using C64UViewer. Enjoy high-quality viewing without a capture card.

Rustlang library to read and manipulate C64 disk images.

A floppy disk menu for C64. Save it as first program of your own disk!

TinyToolBoxC64 is a web page to help you to to easily adjust all registers of your VIC II for your graphics projects.

A simple ASID Protokoll Player for the SIDBlaster-USB