PMCSkin3D

PMCSkin3D is a browser-based editor for creating and adjusting Minecraft skins. It lets you paint on a 3D model and inspect the skin on that model as you work. The editor supports HD skins and both the standard and Slim (Alex) models. You can load a skin by username, then pose and animate the model to view it in different positions. These tools keep the focus on making changes to a skin and seeing how it appears on a model. PMCSkin3D runs in a browser and is free to use, with a free plan. Its website is the Planet Minecraft skin editor page. No desktop or mobile app is listed; the stated platform is the browser. For people who want to work on Minecraft skins without paying, its listed features include model painting, HD skin support, model selection, username loading, posing, and animation.

It suits Minecraft players who want to create or adjust a skin and inspect it on a 3D model. The browser format may suit people who prefer not to use a separately listed desktop or mobile app.