Head-to-head · Object Storage Services
Google Cloud Storage vs Amazon S3
Google Cloud Storage leads on 1 check, Amazon S3 on 1, and 4 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreGoogle Cloud Storage · 9.4/10
- Free planonly Google Cloud Storage
Google Cloud Storage scores higher on our rubric for object storage services: 9.4 against 9.3 out of 10; our editors rank them #1 and #2.
Google Cloud Storage offers free plan; Amazon S3 doesn't. Amazon S3 leads on max object size: 50000 GB versus 5120 GB.
Google Cloud Storage is the better fit for broad cloud object storage with strong integrations. Amazon S3 is the better fit for enterprise AWS-native object storage.
- Google Cloud Storage fits best
Broad cloud object storage with strong integrations
- Amazon S3 fits best
Enterprise AWS-native object storage
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Side by side
| Feature | Google Cloud Storage 9.4/10 Visit ↗ | Amazon S3 9.3/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 9.3 |
| Ranking | #1 in Object Storage Services | #2 in Object Storage Services |
| Best for | Broad cloud object storage with strong integrations | Enterprise AWS-native object storage |
| Pricing model | Free plan + paid | Paid |
| Starting price | Free plan | $0.02/mo |
| Free plan | ✓ (best) | — |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Integrations | 10 integrations | 8 integrations |
| Features Google Cloud Storage 4/4 · Amazon S3 4/4 | ||
| S3 compatibility | ✓ | ✓ |
| Object versioning | ✓ | ✓ |
| Lifecycle rules | ✓ | ✓ |
| Object immutability | ✓ | ✓ |
| Specs | ||
| Max object size | 5120 GB | 50000 GB (best) |
| Replication scope | Cross-region | Cross-region |
| Our review | ||
| Pros |
|
|
| Cons |
|
|
| Our verdict | Google Cloud Storage is a managed object storage service for organizations and developers. It stores data as objects in buckets and supports web-console, API, command-line, client-library, REST, XML, and gRPC access. Its storage options… Read the review → |
Amazon S3 is a cloud object storage service built around buckets for storing, organizing, protecting, and retrieving data. It suits organizations managing applications, data lakes, backups, archives, analytics workloads, and content… Read the review → |
Strengths and trade-offs
Google Cloud Storage — where it wins
- Five storage classes, from Standard through Archive and Rapid
- Lifecycle rules, versioning, retention locks, and replication controls
- APIs, Terraform, gcloud CLI, gRPC, and S3-compatible access
Where it doesn't
- Usage-based pricing varies by class, location, and transfer
- The broad feature set may exceed simple storage requirements
- Advanced controls require choices around locations, keys, and replication
Amazon S3 — where it wins
- Cross-Region Replication, versioning, and Object Lock retention controls
- Storage classes and lifecycle rules support archiving and deletion workflows
- REST API, SDK, CLI, console, and broad AWS service integrations
Where it doesn't
- No free plan is available
- Pricing varies by region, storage class, requests, and data transfer
- Its broad feature set is centered on AWS services and tooling
- Google Cloud Storage9.4/10 · Free plan
A broad object storage service for teams that need cloud integrations and control.
Visit Google CloudFull verdict → - Amazon S39.3/10 · From $0.02/mo
Deep AWS-native object storage with powerful controls, replication, and usage-based pricing.
Visit Amazon S3Full verdict →
More comparisons
- Google Cloud Storage vs Alibaba Cloud Object Storage Service (OSS)
- Google Cloud Storage vs Oracle Cloud Infrastructure Object Storage
- Google Cloud Storage vs Yandex Object Storage
- Google Cloud Storage vs Backblaze B2 Cloud Storage
- Google Cloud Storage vs MinIO AIStor
- Google Cloud Storage vs SeaweedFS
- Amazon S3 vs Alibaba Cloud Object Storage Service (OSS)
- Amazon S3 vs Oracle Cloud Infrastructure Object Storage
All object storage services comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update






