Is UC free for low income?

Hello there, I was wondering if you could clarify something for me regarding the University of California's (UC) tuition policy. Specifically, I'm interested in knowing if UC offers any tuition-free or discounted options for low-income students. As a potential student who may be facing financial constraints, this information is crucial for me in making my decision. Could you please provide some insight into this matter? Thank you in advance for your assistance.