chordPic is the total shiznit!
as a guitarist using a tablet for all of my music, i found this tool to be exactly what i needed. i create all my own music using ms word to do the lyrics and add chord names above the words. simple and easy... but sometimes i use a chord i dont use often.. and i need a simple cheater pix to help me recall the shape.
Any decent mind mapping software would do.
We commonly use editors for words, sheets, and slides, but there do exist editors for mind maps. As a class of software. Desktop and online.
Almost all of them support what you asked for.
I personally use Mindjet Mind Manager (ten years old verion, but still 200% functions to cover all my requirements):
I hacked together a simple website to create chord charts online (.png and .svg images): https://chordpic.com.
The use case of this website is if you don't want a million features but just want to create some simple charts very quickly. I created this site to replace the website chordpix.com which recently went dead.
It asks you to name the chord (optional,...