The new URL is https://javahexeditor.sourceforge.io. Make sure to update your links accordingly.
The latest sources including Andrey Loskutov contributions are now back on Sourceforge in Git, see https://sourceforge.net/p/javahexeditor/git/ci/master/tree/. The SVN repository is kept only as history.
The current standalone version has been updated with a complete German localization for the on-screen texts (except for the online help). I have also extended the build process, so now there are also a Mac OS X version for 32-bit and 64-bit Mac OS X machines. I do not have such a machine, so if you can test and provide feedback, I'd be happy.
The full online help is now available on http://javahexeditor.sourceforge.net.
Some issues have been reported with the native Windows version when processing files of about 1 MB and more. The issue in not there on Linux apparently. I'm trying to nail it down now.