MapperMate is described as 'Free online tilemap editor for 2D games. Create, edit, and export game maps directly in your browser with JavaScript and Godot support' and is a game development tool in the backup & sync category. There are nine alternatives to MapperMate, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Flathub apps. The best MapperMate alternative is Tiled Map Editor, which is both free and Open Source. Other great sites and apps similar to MapperMate are LDtk, Dungeondraft, MMapper and OGMO Editor.