/usr/bin/ext2simg
/usr/bin/ext4fixup
/usr/bin/img2simg
/usr/bin/make_ext4fs
/usr/bin/mkuserimg
/usr/bin/simg2img
/usr/bin/simg2simg
/usr/bin/simg_dump
/usr/bin/test_ext4fixup
You may install this package on Debian with
apt-get
install android-tools-fsutils