Mariopedia is a wiki about the Mario franchise and its closely related series, such as Super Smash Bros. and Banjo-Kazooie. It was founded by HannahMontanaFan on June 16, 2021, and it had the url
supermariowiki.miraheze.org. Their reason for creating the wiki was to base it on the Super Mario Wiki back in the 2000s and early 2010s. Later that year, the url was renamed to
mario.miraheze.org, per Bawitdaba's suggestion. On April 26, 2022, also per Bawitdaba's suggestion, the wiki has been renamed to Mariopedia and given a new domain,
Aside from early Super Mario Wiki, Mariopedia also derives some of its style and inspiration from Zeldapedia as well as Final Fantasy Wiki in the 2000s and early 2010s. Part of why Bawitdaba decided on this is because he wondered what a successful Mario-related wiki on Wikia would have looked like in the 2000s. In fact, the name Mariopedia was derived from Zeldapedia whereas mariopedia.org is a play on Halopedia's domain, halopedia.org. However, there is an earlier instance of a wiki named Mariopedia that was created on editthis.info by a few Super Mario Wiki users in early 2007.
On May 25, 2022, Mariopedia has received a background based on that of the Super Mario Wiki's, a few days before their Monobook background was changed to the one on their Vector skin.