diff --git a/actions/build-push-to-dockerhub/README.md b/actions/build-push-to-dockerhub/README.md
index 3b50536b..788a9b24 100644
--- a/actions/build-push-to-dockerhub/README.md
+++ b/actions/build-push-to-dockerhub/README.md
@@ -28,3 +28,20 @@ jobs:
             "2024-04-01-abcd1234"
             "latest"
 ```
+
+## Inputs
+
+| Name | Type | Description |
+|------|------|-------------|
+| `context` | String | Path to the Dockerfile (default: `.`) |
+| `platforms` | List | List of platforms the image should be built for (e.g. `linux/amd64,linux/arm64`) |
+| `push` | Bool | Push the generated image (default: `false`) |
+| `repository`| String | Docker repository name |
+| `tags` | List | Tags that should be used for the image (see the [metadata-action][mda] for details) |
+
+[mda]: https://github.com/docker/metadata-action?tab=readme-ov-file#tags-input
+
+
+## Notes
+
+- If you specify `platforms` then the action will use buildx to build the image.
diff --git a/actions/build-push-to-dockerhub/action.yaml b/actions/build-push-to-dockerhub/action.yaml
index 07ba473e..c6789a3c 100644
--- a/actions/build-push-to-dockerhub/action.yaml
+++ b/actions/build-push-to-dockerhub/action.yaml
@@ -13,6 +13,10 @@ inputs:
     description: |
       Path to Dockerfile, which is used to build the image.
     default: "."
+  platforms:
+    description: |
+      List of platforms to build the image for
+    required: false
   push:
     description: |
       Push the generated images also to DockerHub
@@ -24,6 +28,15 @@ runs:
     - name: Check out the repo
       uses: actions/checkout@v4
 
+    # If platforms is specified then also initialize buildx and qemu:
+    - name: Set up QEMU
+      if: inputs.platforms
+      uses: docker/setup-qemu-action@v3
+
+    - name: Set up Docker Buildx
+      if: inputs.platforms
+      uses: docker/setup-buildx-action@v3
+
     - name: Get secrets for DockerHub login
       id: get-secrets
       uses: grafana/shared-workflows/actions/get-vault-secrets@main
@@ -49,6 +62,7 @@ runs:
       uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671
       with:
         context: ${{ inputs.context }}
+        platforms: ${{ inputs.platforms }}
         push: ${{ inputs.push }}
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}