Where can I read free graphic novels and comics legally online?

Several platforms offer free, legal access to graphic novels and comics. ComiXology offers a rotating selection of free comics. Webtoon is hugely popular for original webcomics, many of which are free. GlobalComix provides access to indie comics, often with a subscription or pay-what-you-want model, but also has free content. DriveThruComics offers a selection of free comics, particularly those from smaller publishers. Finally, many publishers like Marvel and DC occasionally offer free comics through their digital platforms or promotions.