There are many alternatives to UNetbootin for Linux and since it's discontinued a lot of people are looking for a replacement. The best Linux alternative is balenaEtcher, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to UNetbootin and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to UNetbootin are Ventoy, dd, MultiBootUSB and Easy2Boot.
UNetbootin alternatives are mainly Bootable USB Creators, but if you're looking for
Disk Imaging Tools or ISO Creators you can filter on that. Other popular filters include
Mac,
Linux and
Mac + Create bootable USB. These are just examples - use the filter bar below to find more specific alternatives to UNetbootin.
Doing a Arch bootable key was a nightmare on a Mac with UNetbootin, no way to make it working. With Etcher one try and it was perfectly ok :)