This is Commodore 64 code and memory debugger that works in real time. It is quick prototyping tool where you can play with Commodore 64 machine and its internals.
Download:
MG Tracker
The MG Tracker is a music editor that utilises Matt Gray's Commodore 64 Dominator replayer from Matt Gray C64 Reformation compo.
Download:
Tom's Editor
Tom's Editor is a free, online image editor.
Official website:
Tom's Viewer
Tom's Viewer is a lightweight version of Tom's Editor.