Storage & Networking

Object Storage Service


Alibaba Cloud Object Storage Service (OSS) is an easy-to-use service that enables you to store, backup and archive large amounts of data on the cloud. OSS acts as an encrypted central repository from where files can be securely accessed from around the globe. OSS guarantees up to 99.9% availability and is a perfect fit for global teams and international project management.

OSS is available at no upfront cost or long-term commitment. Pay only for the actual usage of storage space, network traffic and number of requests processed. OSS also comes with no limits to data storage.


Customer Testimonials

“Alibaba Cloud reduces investment costs in IT and simplifies maintenance allowing us more time to focus on the development of our application.”

“Alibaba Cloud not only provides great cloud solutions, but is also backed up with good technical support which helps you quickly with answers for your issues when you need it.”


1. Available

  • 99.9% availability.

  • 99.99999999% data reliability.

  • Stores 3 copies of your objects.

2. Secure

  • Provides multi-level security and protects against DDoS attacks.

  • Monitors illegal logging access.

  • Transfers data over SSL and provides encrypted cloud storage.

  • Enables policies for accessing data and provides secure cloud storage solution.

3. Scalable

  • Scales storage capacity based on your application’s real-time requirements.

  • No limit on data storage.

4.High Performance

  • Quickly and efficiently processes more than 50,000 requests per second.

  • Ensures fast connectivity within region using BGP (Border Gateway Protocol) multi-line network access system.

  • High performance of application as it supports multiple reads/writes simultaneously.

5. Easy Integration

  • Enables integration with third party software vendors using RESTful APIs.

  • Achieve complex capabilities via seamless integration with other Alibaba Cloud services such as Elastic Compute Service (ECS), and Content Delivery Network (CDN).

6. Easy to Use

  • Easy-to-use Management Console for different secure cloud storage solutions based on business needs.

  • Easy access to data from anywhere, anytime.

7. Cost-effective

  • No upfront cost or long-term commitments.

  • You only pay for the actual usage of storage space, network traffic and number of requests processed.


Product Details

Alibaba Cloud Object Storage Service (OSS) stores objects securely within resources called ‘buckets’. OSS provides you full access to the buckets and allows you to view logs and objects within each bucket. You can read, write, delete and store unlimited objects in your bucket. The high performance of OSS supports multiple reads/writes simultaneously. Data transfers to your buckets are made over SSL and can be encrypted.

The OSS service is built to reduce latency and can process and handle more than 50,000 requests per second. OSS supports media applications, as well as big data, scientific and financial analysis. As Alibaba Cloud OSS stores three copies of your objects to ensure 99.999999999% data reliability you can also be rest assured that uploading files to the cloud won’t result in any lost data. Built-in security mechanisms include multi-level security, monitoring of non-authorized login attempts, DDoS attack protection and data access policies.

You can leverage the underlying large-scale distributed systems of OSS for automatic data replication and failure recovery. Alibaba Cloud OSS includes automatic data replication and failover features.

The service is able to achieve complex capabilities via seamless integration with other Alibaba Cloud services such as Elastic Compute Service (ECS), and Content Delivery Network (CDN). The service can integrate with third party software vendors using RESTful APIs.



  • Easily upload/download, retrieve and manage massive volumes of data for websites and mobile applications using standard Alibaba Cloud RESTful APIs, SDKs, client tools and a dedicated console.

  • Provides multiple streams of data writing and reading—ideal for enterprises and businesses which require videos and other large files to be read and written simultaneously.

  • Easily configure deletion of expired/old data objects in batches or transfer to low-cost archiving service.

  • Accelerates development speed and reduces development costs by providing C language SDKs for direct connection with OSS.


Simultaneous Read Write Capabilities

  • Suitable for storing surveillance videos.

  • Provides the class file read/write interface which code streams video and append new content to an object (file).

  • Allows video playback in seconds by making uploaded content accessible even when object (file) is not completely written.



  • Offers scalable and unlimited object based storage capacity.

  • Supports high concurrency.


Easy Image Processing

  • Supports thumbnails, cropping, watermarking, compression, format conversion and other image processing functions for stored images.


Flexible Billing Methods

  • Only pay for cloud object storage space used.

  • Save long-term cost with billing based on network traffic and access requests.


Powerful Data Processing Capabilities

  • Provides high throughput read-and-write access.

  • Supports jpg, png, bmp, gif, webp, tiff, and many other file formats, along with features like format conversion, thumbnails, cropping, watermarks, scaling and other operations.

  • Offers high-quality, high-speed parallel audio/video transcoding capabilities so you can easily prepare audio/video files for any device.

  • Accelerates content delivery with OSS as origin site and ensures stability with no back-to-source bandwidth restrictions.