Super Mario Maker World Engine is a free, fan-made level creation tool built from the ground up for PC and Android devices. It is not an official Nintendo product, nor is it a simple emulated version of the Wii U or Nintendo Switch games.
As an unauthorized fan game using Nintendo's copyrighted characters and assets, it exists in a legal gray area. While no laws explicitly prohibit fan games, Nintendo has successfully shut down many similar projects via DMCA takedown notices. Use at your own discretion.
is a popular, free-to-play fan-made level editor for PC and mobile devices that replicates the experience of Nintendo's official Super Mario Maker series. The Case of "Version 4.0.0 - REPACK"