Amazon S3

Amazon S3 is the original and most widely integrated object storage, with deep AWS integration, many storage classes and the broadest ecosystem — but standard egress is billed per GB, which is what the S3 alternatives compete against.

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Amazon S3 is AWS's object storage service — the de facto industry standard, with the widest tooling and integration support, many storage classes (Standard, Infrequent Access, Glacier), and deep ties to the rest of AWS. Its egress pricing is the benchmark the cheaper alternatives undercut.

Key features

Specs

CategoryObject storage
Pricing modelusage-based
Free tierYes — 12-month new-account free tier (5 GB S3 Standard) plus some always-free allowances; standard egress is billed per GB after the first 100 GB/month.
Managed databaseNo
Regions30+ (AWS regions)
Self-hostableNo
Docker-nativeNo
Git deployNo
Open sourceNo

Last reviewed 2026-07-16 — see our methodology. Specs, pricing and free tiers change often, so confirm current details on the provider before deciding.

Pros & cons

Our editorial assessment — not vendor-stated facts.

Pros

  • Unmatched ecosystem and integration breadth
  • Rich features: lifecycle, versioning, storage classes
  • Battle-tested reliability and compliance

Cons

  • Standard egress billed per GB — expensive for bandwidth-heavy use
  • Pricing is complex (storage + requests + egress + features)
  • Easy to run up surprise bills

Pricing

Usage-based and multi-dimensional: about $0.023/GB-month for S3 Standard storage, per-request charges, and egress around $0.09/GB after the first 100 GB/month (cheaper archival classes exist). A 12-month free tier and some always-free allowances apply. Egress is the line item the S3 alternatives target.

Who should use Amazon S3?

Teams already deep in AWS, or those needing S3's storage classes, compliance and ecosystem, who will accept higher egress cost for the integration.

Frequently asked questions

Does Amazon S3 have a free tier?
Yes. 12-month new-account free tier (5 GB S3 Standard) plus some always-free allowances; standard egress is billed per GB after the first 100 GB/month.
How much does Amazon S3 cost?
Usage-based and multi-dimensional: about $0.023/GB-month for S3 Standard storage, per-request charges, and egress around $0.09/GB after the first 100 GB/month (cheaper archival classes exist). A 12-month free tier and some always-free allowances apply. Egress is the line item the S3 alternatives target.
Who should use Amazon S3?
Teams already deep in AWS, or those needing S3's storage classes, compliance and ecosystem, who will accept higher egress cost for the integration.

Amazon S3 alternatives

Object storage

Cloudflare R2

S3-compatible storage with zero egress fees

Free tier*
Object storage

Backblaze B2

Cheap storage with generous free egress

Free tier*
Object storage

Wasabi

Flat-rate hot storage, no egress or API fees

See all Amazon S3 alternatives →