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Blobxfer

Azure Storage transfer tool and data movement library

From Azure·Updated August 7, 2025·View on GitHub··Archived

**This project is no longer actively maintained.** For tools officially supported by Microsoft please refer to this [documentation](https://docs.microsoft.com/azure/storage/common/storage-choose-data-transfer-solution). The project is written primarily in Python, distributed under the MIT License license, first published in 2016. Key topics include: azure, azure-blob, azure-blob-storage, azure-file, azure-storage.

Latest release: 1.11.0
September 27, 2021View Changelog →

Build Status
Build status
codecov
PyPI

PROJECT STATUS

This project is no longer actively maintained. For tools officially supported by
Microsoft please refer to this
documentation.

blobxfer

blobxfer is an advanced data movement tool and library for Azure Storage
Blob and Files. With blobxfer you can copy your files into or out of Azure
Storage with the CLI or integrate the blobxfer data movement library into
your own Python scripts.

Major Features

  • Command-line interface (CLI) providing data movement capability to and
    from Azure Blob and File Storage
  • Standalone library for integration with scripts or other Python packages
  • High-performance design with asynchronous transfers and disk I/O
  • Supports ingress, egress and synchronization of entire directories,
    containers and file shares
  • YAML configuration driven execution support
  • Fine-grained resume support including resuming a broken operation
    within a file or object
  • Vectored IO support
    • stripe mode allows striping a single file across multiple blobs (even
      to multiple storage accounts) to break through single blob or fileshare
      throughput limits
    • replica mode allows replication of a file across multiple destinations
      including to multiple storage accounts
  • Synchronous copy with cross-mode (object transform) replication support
    • Leverages server-side copies by default
    • Arbitrary URL copy support
  • Client-side encryption support
  • Support all Azure Blob types and Azure Files for both upload and download
  • Advanced skip options for rsync-like operations
  • Store/restore POSIX filemode and uid/gid
  • Support reading/pipe from stdin including to page blob destinations
  • Support reading from blob and file share snapshots for downloading and
    synchronous copy
  • Support for setting access tier on objects for uploading and synchronous
    copy
  • Configurable one-shot block upload support
  • Configurable chunk size for both upload and download
  • Automatic block size selection for block blob uploading
  • Automatic uploading of VHD/VHDX files as page blobs
  • Include and exclude filtering support
  • Rsync-like delete support
  • No clobber support in either direction
  • Automatic content type tagging
  • Support for setting the Cache Control property of blobs and files
  • File logging support
  • Support for HTTP proxies

Installation

There are three ways to install blobxfer:

Please refer to the
installation guide
for more information on how to install blobxfer.

Documentation

Please refer to the blobxfer documentation
for more details and usage information.

Change Log

Please see the
Change Log
for project history.

Support

This project is community supported and not officially supported by Microsoft.
There is no defined SLA for addressing features, issues, and bugs which are
exclusively serviced via GitHub issues. For tools officially supported by
Microsoft please refer to this
documentation.


Please see this project's Code of Conduct and
Contributing guidelines.

Contributors

Showing top 6 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from Azure/blobxfer via the GitHub API.Last fetched: 5/31/2026