Tone-Deafness Test - The Music Lab
https://www.themusiclab.org/quizzes/td
This is a research study on perfect pitch, but also gives you a score at the end.
Needs headphones and a quiet place to be done properly. I did it on my phone, and in that interface, I found that for the dropdowns for various choices I had to double-tap the field to get the options to display.
(I achieved the 85th percentile.)