# docker system prune **Description:** Remove unused data **Usage:** `docker system prune [OPTIONS]` ## Description Remove all unused containers, networks, images (both dangling and unused), and optionally, volumes. ## Options | Option | Default | Description | |--------|---------|-------------| | `-a`, `--all` | | Remove all unused images not just dangling ones | | `--filter` | | API 1.28+ Provide filter values (e.g. `label==`) | | `-f`, `--force` | | Do not prompt for confirmation | | `--volumes` | | Prune anonymous volumes | ## Examples ```console $ docker system prune WARNING! This will remove: - all stopped containers - all networks not used by at least one container - all dangling images - unused build cache Are you sure you want to continue? [y/N] y Deleted Containers: f44f9b81948b3919590d5f79a680d8378f1139b41952e219830a33027c80c867 792776e68ac9d75bce4092bc1b5cc17b779bc926ab04f4185aec9bf1c0d4641f Deleted Networks: network1 network2 Deleted Images: untagged: hello-world@sha256:f3b3b28a45160805bb16542c9531888519430e9e6d6ffc09d72261b0d26ff74f deleted: sha256:1815c82652c03bfd8644afda26fb184f2ed891d921b20a0703b46768f9755c57 deleted: sha256:45761469c965421a92a69cc50e92c01e0cfa94fe026cdd1233445ea00e96289a Total reclaimed space: 1.84kB ``` By default, volumes aren't removed to prevent important data from being deleted if there is currently no container using the volume. Use the `--volumes` flag when running the command to prune anonymous volumes as well: ```console $ docker system prune -a --volumes WARNING! This will remove: - all stopped containers - all networks not used by at least one container - all anonymous volumes not used by at least one container - all images without at least one container associated to them - all build cache Are you sure you want to continue? [y/N] y Deleted Containers: 0998aa37185a1a7036b0e12cf1ac1b6442dcfa30a5c9650a42ed5010046f195b 73958bfb884fa81fa4cc6baf61055667e940ea2357b4036acbbe25a60f442a4d Deleted Networks: my-network-a my-network-b Deleted Volumes: 1e31bcd425e913d9f65ec0c3841e9c4ebb543aead2a1cfe0d95a7c5e88bb5026 6a6ab3d6b8d740a1c1d4dbe36a9c5f043dd4bac5f78abfa7d1f2ae5789fe60b0 Deleted Images: untagged: my-curl:latest deleted: sha256:7d88582121f2a29031d92017754d62a0d1a215c97e8f0106c586546e7404447d deleted: sha256:dd14a93d83593d4024152f85d7c63f76aaa4e73e228377ba1d130ef5149f4d8b untagged: alpine:3.3 deleted: sha256:695f3d04125db3266d4ab7bbb3c6b23aa4293923e762aa2562c54f49a28f009f untagged: alpine:latest deleted: sha256:ee4603260daafe1a8c2f3b78fd760922918ab2441cbb2853ed5c439e59c52f96 deleted: sha256:9007f5987db353ec398a223bc5a135c5a9601798ba20a1abba537ea2f8ac765f deleted: sha256:71fa90c8f04769c9721459d5aa0936db640b92c8c91c9b589b54abd412d120ab deleted: sha256:bb1c3357b3c30ece26e6604aea7d2ec0ace4166ff34c3616701279c22444c0f3 untagged: my-jq:latest deleted: sha256:6e66d724542af9bc4c4abf4a909791d7260b6d0110d8e220708b09e4ee1322e1 deleted: sha256:07b3fa89d4b17009eb3988dfc592c7d30ab3ba52d2007832dffcf6d40e3eda7f deleted: sha256:3a88a5c81eb5c283e72db2dbc6d65cbfd8e80b6c89bb6e714cfaaa0eed99c548 Total reclaimed space: 13.5 MB ``` ### Filtering (--filter) {#filter} The filtering flag (`--filter`) format is of "key=value". If there is more than one filter, then pass multiple flags (e.g., `--filter "foo=bar" --filter "bif=baz"`). When multiple filters are provided, they are combined as follows: - Multiple filters with **different keys** are combined using AND logic. An item must satisfy all filter conditions to be pruned. - Multiple filters with the **same key** are combined using OR logic. An item is pruned if it matches any of the values for that key. For example, `--filter "label=foo" --filter "until=24h"` prunes items that have the `foo` label **and** were created more than 24 hours ago. Conversely, `--filter "label=foo" --filter "label=bar"` prunes items that have **either** the `foo` **or** `bar` label. The currently supported filters are: * until (``) - only remove containers, images, and networks created before given timestamp * label (`label=`, `label==`, `label!=`, or `label!==`) - only remove containers, images, networks, and volumes with (or without, in case `label!=...` is used) the specified labels. The `until` filter can be Unix timestamps, date formatted timestamps, or Go duration strings supported by [ParseDuration](https://pkg.go.dev/time#ParseDuration) (e.g. `10m`, `1h30m`) computed relative to the daemon machine’s time. Supported formats for date formatted time stamps include RFC3339Nano, RFC3339, `2006-01-02T15:04:05`, `2006-01-02T15:04:05.999999999`, `2006-01-02T07:00`, and `2006-01-02`. The local timezone on the daemon will be used if you do not provide either a `Z` or a `+-00:00` timezone offset at the end of the timestamp. When providing Unix timestamps enter seconds[.nanoseconds], where seconds is the number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap seconds (aka Unix epoch or Unix time), and the optional .nanoseconds field is a fraction of a second no more than nine digits long. The `label` filter accepts two formats. One is the `label=...` (`label=` or `label==`), which removes containers, images, networks, and volumes with the specified labels. The other format is the `label!=...` (`label!=` or `label!==`), which removes containers, images, networks, and volumes without the specified labels.