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Amazon S3 is a fully managed object storage service that lets you store and retrieve any amount of data from anywhere with high durability and scalability.
- for
- Developers, data engineers, and enterprises needing scalable, durable object storage.
- pricing
- freemium · free trial
Key features
- 11-nines durability — Provides 99.999999999% durability for stored objects.
- Multiple storage classes — Offers Standard, Intelligent-Tiering, Infrequent Access, Glacier, and Express for cost-optimized access patterns.
- Automatic lifecycle management — Moves data between classes automatically to reduce storage spend.
- Encryption by default — All objects are encrypted at rest without extra configuration.
- Fine-grained access control — Supports bucket policies, IAM, and ACLs for secure data access.
- Integration with AWS analytics & AI — Directly connects to services like Athena, SageMaker, and Redshift for analytics and machine learning.
Use cases
- Data lake for petabyte-scale analytics
- Backup and archival of critical business data
- Serving static assets for web and mobile apps
- Training and fine-tuning generative AI models
- High-performance media processing with S3 Express One Zone
Amazon S3 vs alternatives
 Amazon S3 |  Google Cloud Storage |  Microsoft Azure |  AWS | |
|---|---|---|---|---|
| Best for | Durable, scalable object storage | Object storage on Google Cloud | Object storage on Microsoft Azure | General AWS cloud services |
| Pricing | Freemium | Subscription | Subscription | Subscription |
| DevHunt upvotes | 0 | 0 | 0 | 0 |
| Launched | — | — | — | — |
- Amazon S3 vs Google Cloud Storage: Google Cloud Storage provides similar object storage on GCP with comparable durability and multi-region options.
- Amazon S3 vs Microsoft Azure: Azure Blob Storage offers comparable durability and tiered storage within Microsoft Azure ecosystem.
- Amazon S3 vs AWS: AWS offers a broader suite of services beyond storage, but S3 is the specific object storage component.
Amazon S3 FAQ
Who is Amazon S3 best for?+
It is built for organizations of any size that need durable, scalable object storage for data lakes, applications, backup, archive, and AI workloads.
What durability and availability does S3 provide?+
S3 delivers 99.999999999% (11 nines) durability and 99.99% availability by default.
How does S3 secure my data?+
Data is encrypted at rest by default and S3 offers fine-grained access controls, compliance features, and audit logging.
How does S3 help reduce storage costs?+
Intelligent-Tiering and lifecycle policies automatically move data to cheaper storage classes based on access patterns.
Can S3 be used for AI and ML workloads?+
Yes, S3 stores structured, unstructured, streaming, and vector data and integrates with AWS AI/ML services for training and inference.
Summarized by DevHunt from aws.amazon.com · Nov 7, 2026. Details may change; check the official site.
About this listing
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