Navigate to your storage account in the Azure portal.

Locate the Configuration setting under Settings .

Set Blob public access to Enabled or Disabled .

To allow or disallow public access for a storage account with PowerShell, install Azure PowerShell version 4.4.0 or later. Next, configure the AllowBlobPublicAccess property for a new or existing storage account.

The following example creates a storage account and explicitly sets the AllowBlobPublicAccess property to false . Remember to replace the placeholder values in brackets with your own values:

$rgName = "<resource-group>"
$accountName = "<storage-account>"
$location = "<location>"
# Create a storage account with AllowBlobPublicAccess set to false.
New-AzStorageAccount -ResourceGroupName $rgName `
    -Name $accountName `
    -Location $location `
    -SkuName Standard_GRS `
    -AllowBlobPublicAccess $false
# Read the AllowBlobPublicAccess property for the newly created storage account.
(Get-AzStorageAccount -ResourceGroupName $rgName -Name $accountName).AllowBlobPublicAccess
To allow or disallow public access for a storage account with Azure CLI, install Azure CLI version 2.9.0 or later. For more information, see Install the Azure CLI. Next, configure the allowBlobPublicAccess property for a new or existing storage account.
The following example creates a storage account and explicitly sets the allowBlobPublicAccess property to false. Remember to replace the placeholder values in brackets with your own values:
az storage account create \
    --name <storage-account> \
    --resource-group <resource-group> \
    --kind StorageV2 \
    --location <location> \
    --allow-blob-public-access false
az storage account show \
    --name <storage-account> \
    --resource-group <resource-group> \
    --query allowBlobPublicAccess \
    --output tsv
To allow or disallow public access for a storage account with a template, create a template with the AllowBlobPublicAccess property set to true or false. The following steps describe how to create a template in the Azure portal.
In the Azure portal, choose Create a resource.
In Search services and marketplace, type template deployment, and then press ENTER.
Choose Template deployment (deploy using custom templates), choose Create, and then choose Build your own template in the editor.
In the template editor, paste in the following JSON to create a new account and set the AllowBlobPublicAccess property to true or false. Remember to replace the placeholders in angle brackets with your own values.
    "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {},
    "variables": {
        "storageAccountName": "[concat(uniqueString(subscription().subscriptionId), 'template')]"
    "resources": [
        "name": "[variables('storageAccountName')]",
        "type": "Microsoft.Storage/storageAccounts",
        "apiVersion": "2019-06-01",
        "location": "<location>",
        "properties": {
            "allowBlobPublicAccess": false
        "dependsOn": [],
        "sku": {
          "name": "Standard_GRS"
        "kind": "StorageV2",
        "tags": {}
Save the template.
Specify resource group parameter, then choose the Review + create button to deploy the template and create a storage account with the allowBlobPublicAccess property configured.
Disallowing public access for a storage account does not affect any static websites hosted in that storage account. The $web container is always publicly accessible.
After you update the public access setting for the storage account, it may take up to 30 seconds before the change is fully propagated.
When a container is configured for anonymous public access, requests to read blobs in that container do not need to be authorized. However, any firewall rules that are configured for the storage account remain in effect and will block traffic inline with the configured ACLs.
Allowing or disallowing blob public access requires version 2019-04-01 or later of the Azure Storage resource provider. For more information, see Azure Storage Resource Provider REST API.
The examples in this section showed how to read the AllowBlobPublicAccess property for the storage account to determine if public access is currently allowed or disallowed. To learn more about how to verify that an account's public access setting is configured to prevent anonymous access, see Remediate anonymous public access for the storage account.
Set the public access level for a container
To grant anonymous users read access to a container and its blobs, first allow public access for the storage account, then set the container's public access level. If public access is denied for the storage account, you will not be able to configure public access for a container.
When public access is allowed for a storage account, you can configure a container with the following permissions:
No public read access: The container and its blobs can be accessed only with an authorized request. This option is the default for all new containers.
Public read access for blobs only: Blobs within the container can be read by anonymous request, but container data is not available anonymously. Anonymous clients cannot enumerate the blobs within the container.
Public read access for container and its blobs: Container and blob data can be read by anonymous request, except for container permission settings and container metadata. Clients can enumerate blobs within the container by anonymous request, but cannot enumerate containers within the storage account.
You cannot change the public access level for an individual blob. Public access level is set only at the container level. You can set the container's public access level when you create the container, or you can update the setting on an existing container.
Azure portal
PowerShell
Azure CLI
Template
To update the public access level for one or more existing containers in the Azure portal, follow these steps:
Navigate to your storage account overview in the Azure portal.
Under Data storage on the menu blade, select Blob containers.
Select the containers for which you want to set the public access level.
Use the Change access level button to display the public access settings.
Select the desired public access level from the Public access level dropdown and click the OK button to apply the change to the selected containers.
To update the public access level for one or more containers with PowerShell, call the Set-AzStorageContainerAcl command. Authorize this operation by passing in your account key, a connection string, or a shared access signature (SAS). The Set Container ACL operation that sets the container's public access level does not support authorization with Azure AD. For more information, see Permissions for calling blob and queue data operations.
The following example creates a container with public access disabled, and then updates the container's public access setting to permit anonymous access to the container and its blobs. Remember to replace the placeholder values in brackets with your own values:
# Set variables.
$rgName = "<resource-group>"
$accountName = "<storage-account>"
# Get context object.
$storageAccount = Get-AzStorageAccount -ResourceGroupName $rgName -Name $accountName
$ctx = $storageAccount.Context
# Create a new container with public access setting set to Off.
$containerName = "<container>"
New-AzStorageContainer -Name $containerName -Permission Off -Context $ctx
# Read the container's public access setting.
Get-AzStorageContainerAcl -Container $containerName -Context $ctx
# Update the container's public access setting to Container.
Set-AzStorageContainerAcl -Container $containerName -Permission Container -Context $ctx
# Read the container's public access setting.
Get-AzStorageContainerAcl -Container $containerName -Context $ctx
When public access is disallowed for the storage account, a container's public access level cannot be set. If you attempt to set the container's public access level, Azure Storage returns error indicating that public access is not permitted on the storage account.
To update the public access level for one or more containers with Azure CLI, call the az storage container set permission command. Authorize this operation by passing in your account key, a connection string, or a shared access signature (SAS). The Set Container ACL operation that sets the container's public access level does not support authorization with Azure AD. For more information, see Permissions for calling blob and queue data operations.
The following example creates a container with public access disabled, and then updates the container's public access setting to permit anonymous access to the container and its blobs. Remember to replace the placeholder values in brackets with your own values:
az storage container create \
    --name <container-name> \
    --account-name <account-name> \
    --resource-group <resource-group>
    --public-access off \
    --account-key <account-key> \
    --auth-mode key
az storage container show-permission \
    --name <container-name> \
    --account-name <account-name> \
    --account-key <account-key> \
    --auth-mode key
az storage container set-permission \
    --name <container-name> \
    --account-name <account-name> \
    --public-access container \
    --account-key <account-key> \
    --auth-mode key
az storage container show-permission \
    --name <container-name> \
    --account-name <account-name> \
    --account-key <account-key> \
    --auth-mode key
When public access is disallowed for the storage account, a container's public access level cannot be set. If you attempt to set the container's public access level, Azure Storage returns error indicating that public access is not permitted on the storage account.
Check the public access setting for a set of containers
It is possible to check which containers in one or more storage accounts are configured for public access by listing the containers and checking the public access setting. This approach is a practical option when a storage account does not contain a large number of containers, or when you are checking the setting across a small number of storage accounts. However, performance may suffer if you attempt to enumerate a large number of containers.
The following example uses PowerShell to get the public access setting for all containers in a storage account. Remember to replace the placeholder values in brackets with your own values:
$rgName = "<resource-group>"
$accountName = "<storage-account>"
$storageAccount = Get-AzStorageAccount -ResourceGroupName $rgName -Name $accountName
$ctx = $storageAccount.Context
Get-AzStorageContainer -Context $ctx | Select Name, PublicAccess
Feature support
Support for this feature might be impacted by enabling Data Lake Storage Gen2, Network File System (NFS) 3.0 protocol, or the SSH File Transfer Protocol (SFTP).
If you've enabled any of these capabilities, see Blob Storage feature support in Azure Storage accounts to assess support for this feature.
Next steps
Prevent anonymous public read access to containers and blobs
Access public containers and blobs anonymously with .NET
Authorizing access to Azure Storage