Ditto for "Open D minor (DADFAD)" tuning that I use. Being able to set up an arbitrary tuning would serve this purpose as well, although I suspect generalizing that function might be more work than it is worth.

It would also be nice to see other scales, such as major and minor pentatonic and blues scales.

I've used jguitar.com in the past for this sort of thing, but I really like visual aspect and unity of guitardashboard. Nice work!

+1 for mentioning https://jguitar.com/ which I created.

There aren't a lot of tools for exploring fingering for non-standard tunings, and jguitar.com has served my explorations for the past couple of years.

jguitar.com is also very comprehensive in terms of chord fingering, scales, etc.

One major difference between jquitar.com and guitardashboard.com is that the facets (tuning, chords, scales, etc.) are separated from one other on jguitar.com, whereas guitardashboard.com tries to place them all onto a single screen. My initial reaction to guitardashboard.com is that this approach does succeed. However, jguitar.com has more to offer in total.

My thanks to both authors for helping us explorers of alternate tunings. Any help we can get is appreciated.

It's very easy to add new tunings. I'll collect all the ones from the comments here and add them in the next few days.

Some tunings I would like:

5 string bass: BEADG Baritone guitar: BEADF#B (2.5 steps down) Baritone drop A: AEADF#B (like drop D, tuned 2.5 steps down)

Would be neat if you could just select a standard tuning and then have a spinbox to say how many steps up or down to modify it. Makes lots of combinations available.

Thanks for the tool!

I haven't used D standard, but it looks like regular EADGBD tuned a whole step down. So you could basically use that tuning on the site and just select the key a whole step below what you want, and it will align on your fretboard properly, as a workaround.