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Cloudflare R2

S3-compatible object storage with zero egress fees, on Cloudflare's network.

cloudflare.com/developer-platform/products/r2developers.cloudflare.com/r2
Overall in s3-compatible storage
3of 12 · score 77.8
Data coverage
100%
28 of 28 fields sourced

Best for

  • •Public assets, media and package registries where egress dwarfs storage
  • •Anything already fronted by Cloudflare Workers or the Cloudflare CDN
  • •Escaping an AWS bill that is mostly bandwidth

Strong on

  • +CDN integration free-bundled 1/12
  • +Official MCP server Yes 1/12
  • +Event notifications Yes 1/12
  • +Egress $/TB $0/TB 1/11
  • +True cost from Sydney (AUD) A$34.56/mo 1/6
  • +True cost /mo (USD) $22.74/mo 2/9

Weak on

  • −Versioning No 10/12
    Better: Backblaze B2: Yes
  • −Class A $/M ops $4.5/M ops 10/12
    Better: Backblaze B2: $0/M ops
  • −Class B $/M ops $0.36/M ops 10/12
    Better: Backblaze B2: $0/M ops
  • −Object lock / WORM Partial 9/11
    Better: Backblaze B2: Yes

vs Tigris

  • •Ahead on Official MCP server: Yes vs No
  • •Ahead on Storage $/TB/mo: $15/TB/mo vs $20/TB/mo
  • •Behind on Versioning: No vs Yes
  • •Behind on Replication model: multi-az vs multi-region

How Cloudflare R2 scores among 12 s3-compatible storage28 of 28 fields known

Pricing10

True cost /mo (USD)2nd
$22.74/mo
2/9
Leader: Hetzner Object Storage · $12.47/mo
developers.cloudflare.com · 2026-07-23
True cost /mo (AUD)2nd
A$34.56/mo
2/9
Leader: Hetzner Object Storage · A$18.95/mo
· 2026-07-23
True cost from Sydney (AUD)1st
A$34.56/mo
1/6
· 2026-07-23
Storage $/TB/mo
$15/TB/mo
7/11
Leader: iDrive e2 · $6/TB/mo
developers.cloudflare.com · 2026-11-06
Egress $/TB1st
$0/TB
1/11
developers.cloudflare.com · 2026-11-06
Egress cap (x stored)
Unlimited
1/4
developers.cloudflare.com · 2026-11-07
Class A $/M ops
$4.5/M ops
10/12
Leader: Backblaze B2 · $0/M ops
developers.cloudflare.com · 2026-11-06
Class B $/M ops
$0.36/M ops
10/12
Leader: Backblaze B2 · $0/M ops
developers.cloudflare.com · 2026-11-06
Min retention1st
0ms
1/12
developers.cloudflare.com · 2026-11-06
Min billed object1st
0 B
1/12
· 2026-07-23

Features & API11

S3 API coverage
82%
7/12
Leader: AWS S3 · 100%
developers.cloudflare.com · 2026-07-23
Presigned URLs1st
Yes
1/12
developers.cloudflare.com · 2026-11-06
Multipart upload1st
Yes
1/12
developers.cloudflare.com · 2026-11-06
Versioning
No
10/12
Leader: Backblaze B2 · Yes
developers.cloudflare.com · 2026-11-06
Lifecycle rules1st
Yes
1/12
developers.cloudflare.com · 2026-11-06
Event notifications1st
Yes
1/12
developers.cloudflare.com · 2026-11-06
CDN integration1st
free-bundled
1/12
Max object size1st
5 TB
1/11
developers.cloudflare.com · 2026-11-06
IAM granularity
3
6/12
Leader: MinIO · 5
Sydney region
Partial
7/11
Leader: Wasabi · Yes
TTFB from Sydney
45ms
5/10
Leader: Bunny Storage · 20ms

Durability & Retention4

Durability (nines)1st
11 nines
1/9
developers.cloudflare.com · 2026-11-06
Uptime SLA
99.9%
4/11
Leader: Tigris · 99.99%
· 2026-07-23
Object lock / WORM
Partial
9/11
Leader: Backblaze B2 · Yes
Replication model
multi-az
5/12
Leader: Tigris · multi-region

Agentic1

Official MCP server1st
Yes
1/12

Traction1

GA year3rd
2022
3/12
Leader: Tigris · 2024
blog.cloudflare.com · 2026-11-06

Positioning1

Positioning
Zero-egress object storage for teams already on Cloudflare's edge.

Alternatives8

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Sources9