The same source code what native (ie, Windows, or Linux executable) version of Xemu is built from, just built with a compiler named "emscripten", which makes it possible to generatre "web-aware" result (WebAssembly, asm.js). This is a highly work in progress version, you can see ugly, and partially broken user interface (among other problems), and it requires fairly modern browser, possibly (latest version of) Firefox or Chrome (even Safari is too old, it seems, no hope for IE too much, of course, or anything MS ... Maybe Edge with the Blink rendering engine which is not even released yet officially ..). Beware, it causes quite huge data download when visiting this page, around 20Mbyte or such in case of Mega65 emulator for example. This version also includes a mostly working setup to really see Xemu/Mega65 in action (prepared SD-card image, etc).
Experimental installer of Xemu for Windows using NullSoft's install shield ("NSIS"). Please use the 64 bit version, unless you have a 32 bit OS from the stone age. Note: you probably need Windows 10 (earlier Windows versions are kinda lame from programmer's view point, Microsoft started to implement sane programming APIs in Windows 10 ...). Besides of the installer, you still need to manually provide the needed non-free components, eg ROM images, SD-card image ....
WARNING: according to a report, some antivirus software detects NSIS installer as a trojan/virus. I can't be totally sure on this since I only use NSIS as the installer, though I strongly believe at least, it's just a false positive. Here it is some description from Nullsoft itself about this - unfortunately - quite common problem. In case of doubts, you can still try the ZIP'ed version without an installer (see below).
ZIP archive, with only the needed EXE + DLL files, but without any installer. Can be usefull for more advanced Windows users. Please use the 64 bit version, unless you really have a 32 bit OS from the stone age.
Debian package built from Xemu on Ubuntu Linux 18.04 LTS, 64 bit version. Bonus: you can try to
xemu-download-data (as root, so probably with
sudo) to fetch some ROMs,
emulators included in Xemu need, but note; this is your own legal/whatever risk to do so! Note, even that, it won't
give you the SD-card image for the Mega65 emulator of Xemu unfortunately, currently.
Simply a converted version (with the tool 'alien') of the DEB package above. So it's highly possible it won't work on any RPM based Linux distrubitions, I have no idea at all :(
You should focus mostly on the "dev" branch here ...
Not so much here ... Unfortunately Apple makes it hard or even impossible to ship free software to their OS, ie they require me to buy a Mac ... Other solutions (including using cross compiler) still does not work, since it depends on non-free components, ie XCode to be installed, and such ... For Windows (which I don't have either) you can have cross-compilers without the need of any Microsoft-material to be able to work at least. If you are expert in this area, and you have an idea, please do not keep it yourself :) Thanks.