Backblaze B2 vs Cloudflare R2: which is better? Comparison 2026

By our public methodology Backblaze B2 scores 85 out of 100 and Cloudflare R2 scores 70. Below: the factors and facts where they differ, each fact with its source.

Best S3-Compatible Object Storage 2026: Cloud Storage APIs Compared How we rank

1

Backblaze B2

85/100
4

Cloudflare R2

70/100

Score breakdown

Backblaze B2Cloudflare R2
Price8575
API and features8250
Data protection10060
Reliability and trust6991

Pros and cons

Backblaze B2

  • Free or cheap egress
  • Object Lock for immutable backups
  • Independently audited security
  • High uptime in a published SLA

Cloudflare R2

  • Free or cheap egress
  • Object Lock for immutable backups
  • High uptime in a published SLA
  • Works with the Amazon S3 API
  • No confirmed object versioning

Facts side by side

FactBackblaze B2Cloudflare R2
Storage price per GB-month (standard class)$0.00695 backblaze.com$0.015 developers.cloudflare.com
Egress price per GB (to the internet)$0.01 backblaze.com$0.00 developers.cloudflare.com
Permanent free tierYes backblaze.comYes developers.cloudflare.com
Minimum storage duration0 days backblaze.comNot verified
S3 API compatibleYes backblaze.comYes developers.cloudflare.com
Regions (provider's count)4 backblaze.comNot verified
Object versioningYes backblaze.comNo developers.cloudflare.com
Lifecycle rulesYes backblaze.comYes developers.cloudflare.com
Object Lock (immutable storage)Yes backblaze.comYes developers.cloudflare.com
Encryption at restYes backblaze.comYes developers.cloudflare.com
SOC 2 or ISO 27001Yes backblaze.comNot verified
Uptime SLA99.9% backblaze.com99.9% cloudflare.com
Public status pageNot verifiedYes cloudflarestatus.com
Founded2007 backblaze.com2009 cloudflare.com
Company headquartersNot verifiedUnited States cloudflare.com
CompanyBackblaze, Inc. backblaze.comCloudflare, Inc. cloudflare.com

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