zfs-snap-diff
helps you with your zfs snapshots.
For a terminal based tool see zsd.
Documentation
See the website for more details.
Get it
Prebuild
You can download a prebuild version from here.
Build from source
You only need go to build this project.
Check the docs for more information.
Run it
./zfs-snap-diff [OPTIONS] <ZFS_DATASET_NAME>
This starts a embedded webserver and serves the included web-app at http://127.0.0.1:12345.