The Jagiellonian University provides students with dormitories, make sure to ask about the online registration process if you want to opt for this accomodation type. Students are placed in the Nawojka, Piast, and Bydgoska dormitories. Nawojka is the closest one to University, a 2 minute walk, but their rooms are slightly smaller than in other dorms. Bydgoska has bigger rooms but is situated a 15 minute walk from the University, and Piast is 20 minutes away.
Be aware that you will most probably be living in a shared room! Rent is about 560 złoty per month, which can be paid in cash or by bank transfer.
If you want to have better living conditions than in the dorms, as many Euroculture students do, there are multiple alternative options.
Some students decide to live in private dormitories such as Depot or LivinnX, which however tend to be quite expensive and receive mixed reviews from students.
LABOrooms is another option which is approved by multiple Euroculture students.
In general, there is a rich housing market in Kraków, but, as always, it is recommended to look for accommodation in advance. These websites can help you with that: otodom.pl, domiporta.pl, morizon.pl, gratka.pl, morizon.pl, okolica.pl, gratka.pl, trovit.pl, adresowo.pl, szybko.pl, and olx.pl.
Besides, there are (Erasmus) Facebook groups which can provide you with additional options. It tends to be easier to use groups in Polish, even if you have to use Google Translate for the conversations.