What software to use to create a flowchart with the function of adding notes/files to elements?

Question

Software and Internet Services

1. online solution is not needed.
2. Mind managers were actively used - not that. They contain a fundamental glitch; it is impossible to display complex processes normally.
3. Google was actively used, with obvious options like edrosoft sign - bullshit (more drawing than a tool for building processes)
4. preferably such an option that can be found on trackers.
5. visio - cool, but redundant.