Eaglercraftx 18

Fully supports singleplayer mode with an integrated server. Worlds are saved to the browser's local storage and can be exported/imported as EPK files .

It is not a perfect replacement for the full Java edition—the reduced render distance and lack of Fabric mods stings—but for a free, accessible, and impressively accurate browser game, it is unmatched. eaglercraftx 18

You can import existing vanilla 1.8 worlds as ZIP files or export your browser worlds as EPK files to move them between devices. Fully supports singleplayer mode with an integrated server