Azure Blob Storage [2021] Download Multiple Files As Zip May 2026

: Use an HTTP trigger to receive the list of files to zip.

Downloading multiple files from Azure Blob Storage as a single ZIP file is a common requirement for improving user experience and reducing the number of individual network requests. Because Azure Blob Storage does not provide a native "Download as ZIP" button in the portal, you must implement this logic using code, automation tools, or third-party utilities. azure blob storage download multiple files as zip

: Return the MemoryStream as a FileResult with the MIME type application/octet-stream or application/zip . Method 2: Azure Functions (Serverless & Scalable) : Use an HTTP trigger to receive the list of files to zip

: Loop through your list of blobs. For each one, create a ZipArchiveEntry and use blobClient.DownloadTo() to stream the content directly into the ZIP entry. : Return the MemoryStream as a FileResult with

: Send the user a time-limited Shared Access Signature (SAS) URL to download the final ZIP file. Method 3: No-Code with Azure Data Factory (ADF)

The most common programmatic approach involves creating an in-memory ZIP archive using the System.IO.Compression namespace. This is ideal for web applications where a user clicks "Download All".