Yes! Podcasts are free to listen to. Similar to YouTube videos, mosts Podcasts make their money through sponsorships and ads making them free to listen to.
There are a lot of different platforms that you can use to listen to Podcasts for free, to learn how to listen to Podcasts read our Knowledge Base post: Where can I listen to Podcasts?
There are some Podcasts which you do need to pay to listen to, these are usually bonus Podcasts or private Podcasts that you get access to by paying a monthly subscription to the creators or publishers.
However, there aren't many of these, the majority of Podcasts are free to listen to for everyone.