Hello!
This is FretBadger*, a site I made to help me learn my bass fretboard. It can render fretboards showing notes, scales, arpeggios and chords. You can use the Builder to create pages with multiple scales and arpeggios, bookmark those pages to save them, and print them out too.
It's a work in progress, so if something doesn't work or there's a scale or arpeggio missing, please use the Feedback page to let me know.
The project is open-source and hosted on GitHub. If you happen to be a web design guru you might help me make it look nicer - I'm a coder with minimal design chops.
* It puts badges on frets. Also I like badgers.