Test for qualitative data with different sample sizes

Good morning everyone, I am italian and it is the first time I use this website. I have a problem: I have to make comparisons between two data sets. Their sample sizes are different (the first one is composed of 125 answers and the second one has more than 800 answers). In addition to this, all these variables are dummy (so qualitative variables). Which test can i use in order to see if this two samples are similar? For instance, if i had had quantitative data, I would have used a t-test. I'm looking for a test similar to that.