Does Eclipse cost money?

Hello there, I'm curious about the Eclipse platform and I'm wondering if there's a cost associated with using it. Is Eclipse a free service or do users have to pay for access? Could you please elaborate on the pricing structure, if any, and whether there are any hidden fees or costs that I should be aware of? I'm particularly interested in understanding the financial implications of using Eclipse for both personal and business purposes. Thank you for your time and assistance in clarifying this matter.