Q.Tomato
I have tiny black dots on my tomatoes. Would it be possible to assume what they could be?
Certified GKH Gardening Expert
Without a photo, probably not with accuracy. I could take a few guesses and get you started in a direction, though.
If it has been wet lately, then it could be the start of a fungal infection. In this case, you will need a fungicide: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
You can also use DOLOMITIC LIME and WETTABLE SULFUR to help with your issue.
It could be insect infestation, as well. I couldn't say which, without seeing the damage, but it could be a number of pests. This article will give you more information on insecticides: https://www.gardeningknowhow.com/special/organic/what-are-organic-pesticides.htm
This one on how to craft your own: https://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm