If you're looking for more legal free anime, platforms like Tubi and RetroCrush also offer large libraries of anime for free with ads.
Crunchyroll already offers a generous free, ad-supported tier. You can watch thousands of episodes, including popular simulcasts (one week after Japan). While free users wait longer for new episodes and see ads, the experience is completely legal and safe. For casual viewers, this may be enough—no hack required. crunchyroll premium accounts free