Eaglercraft 1.8 is a port of Minecraft 1.8.8 (the "Combat Update" era) to JavaScript and WebAssembly. It allows players to join multiplayer servers, explore single-player worlds, and customize their skins—all through a browser window.
Many websites host Eaglercraft clients. Search for "Eaglercraft 1.8 Github" or "Eaglercraft mirrors" to find active links. eaglercraft clients 1.8