I like it, I would just work on spacing and alignment of your texts and inputs to make it look less side project-y. As a backend dev I struggle with this as well on my projects. I really like the way you have presented the search results with the numerical and color results. For my own personal uses I would love some kind of indicator that shows if they have an always free tier or not
Thanks for letting me know! That's definitely something that I don't have an eye for (yet).
Hope you are talking mainly about visuals here and not had any issues that completely prevented you from using the tool.