You can usually upload your own skin files or use a URL to fetch a skin. Is it actually free?
If this focus is correct, I can:
Eaglecraft is a popular web-based version of Minecraft that allows players to enjoy the classic sandbox experience directly in a browser. For many players, the "IMC" version of Eaglercraft has become a preferred way to access the game for free without needing a high-end PC or a paid Mojang account. What is IMC Eaglercraft? imc eaglercraft free
Runs smoothly on Chromebooks and older laptops. How to Access IMC Eaglercraft for Free You can usually upload your own skin files