Free up Docker disk space

Docker quietly fills your disk with old images, containers and build cache. Here's how to see it and clear it.

See how much space Docker is using
Terminal
```
docker system df
```
Clear the safe stuff
Terminal
```
docker system prune
```
Removes stopped containers, unused networks, dangling images and build cache. Type y to confirm.
Clear everything not in use (bigger clean)
Terminal
```
docker system prune -a --volumes
```
Also removes every image not used by a running container, and unused volumes. Volumes can hold database data, so be sure first.

Check it worked

See how much you freed
Terminal
```
docker system df
```

See how much space Docker is using
Terminal · Ubuntu / Debian
```
docker system df
```
Clear the safe stuff
Terminal · Ubuntu / Debian
```
docker system prune
```
Removes stopped containers, unused networks, dangling images and build cache. Type y to confirm.
Clear everything not in use (bigger clean)
Terminal · Ubuntu / Debian
```
docker system prune -a --volumes
```
Also removes every image not used by a running container, and unused volumes. Volumes can hold database data, so be sure first.

Check it worked

See how much you freed
Terminal · Ubuntu / Debian
```
docker system df
```

See how much space Docker is using
PowerShell
```
docker system df
```
Clear the safe stuff
PowerShell
```
docker system prune
```
Removes stopped containers, unused networks, dangling images and build cache. Type y to confirm.
Clear everything not in use (bigger clean)
PowerShell
```
docker system prune -a --volumes
```
Also removes every image not used by a running container, and unused volumes. Volumes can hold database data, so be sure first.

Check it worked

See how much you freed
PowerShell
```
docker system df
```