There are developments of J2SE Java to WASM ( WebAssembly ) + JavaScript compilers. Some examples: https://docs.leaningtech.com/cheerpj/ http://blog.dmitryalexandrov.net/webassembly-for-java-developers/ https://github.com/i-net-software/JWebAssembly (and probably way more then those few) Maybe it's finally possible to compile FreeMind to run in modern WebBrowsers (and therefore smartphones/tables...) ? I would love to be able to publish my mindmaps on websites that people can just play with directly...