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Comparison

Backblaze B2 Cloud Storage vs Amazon Web Services (AWS)

Backblaze B2 Cloud Storage and Amazon Web Services (AWS) both land on Depends.

Backblaze B2 Cloud Storage versus Amazon Web Services (AWS)
CompareBackblaze B2 Cloud StorageAmazon Web Services (AWS)
VerdictDependsDepends
Best forAI/ML teams training on large datasetsEnterprise engineering orgs
Who it's not forNon-technical users wanting simple file sync or sharingSmall sites and simple apps . massive overkill
PrivacyNo known public vulnerabilities found in the sources reviewed; UpGuard shows hardened TLS with no FREAK exposure.⁹Mature security organization with public CVEs and customer-side breaches on record; shared responsibility means misconfigurations are on you.16
Support qualityNo evidence in sourcesTrustpilot 'Bad' at 1.3/5
Public sentimentUsers consistently praise B2's price, simplicity, and reliability, especially as a backup target.²Review volume is enormous, but customer sentiment on Trustpilot is poor while marketplace ratings run higher.10
Biggest gotcha'Fifth of S3 cost' and 'free egress' are vendor claims . validate against your own workload⁵Managed services create lock-in; migrating off later is slow and expensive

Pick Backblaze B2 Cloud Storage when

  • AI/ML teams training on large datasets
  • Backup targets for servers and NAS
  • Budget S3 replacement for developers
  • Neocloud infrastructure builders

When Backblaze B2 Cloud Storage is not a fit

  • Non-technical users wanting simple file sync or sharing
  • Small projects that fit in Dropbox or Google Drive
  • Buyers needing verified support SLAs and compliance docs up front
  • Anyone unwilling to work with S3 APIs and tooling

Pick Amazon Web Services (AWS) when

  • Enterprise engineering orgs
  • Apps with spiky global traffic
  • Teams with dedicated DevOps/FinOps
  • Compliance-heavy regulated workloads

When Amazon Web Services (AWS) is not a fit

  • Small sites and simple apps . massive overkill
  • Non-technical founders with no DevOps staff
  • Anyone needing predictable monthly bills
  • Teams that won't own security configuration

Sources

  1. Backblaze homepagebackblaze.com
    official
  2. Backblaze B2 Cloud Storage Reviews . G2ai.g2.com
    review
  3. Backblaze B2 . Capterracapterra.com
    review
  4. Backblaze B2 Reviews . TrustRadiustrustradius.com
    review
  5. Backblaze offers low-cost, fast B2 cloud storage tierblocksandfiles.com
    news
  6. CoreWeave enlists Backblaze for massive cloud storage dealsdxcentral.com
    news
  7. Backblaze says AI demand is driving faster B2 growthfinance.yahoo.com
    news
  8. Backblaze case studies (Decart)welcome.ai
    official
  9. Backblaze Security Rating . UpGuardupguard.com
    security
  10. AWS on Trustpilot . rated 'Bad' 1.3/5trustpilot.com
    review
  11. Amazon Web Services Reviews (14,388) . Glassdoorglassdoor.com
    review
  12. Amazon Web Services Review . PCMagpcmag.com
    review
  13. AWS Reviews & Ratings 2026 . Gartner Peer Insightsgartner.com
    review
  14. AWS Support Plan Pricingaws.amazon.com
    official
  15. AWS Securityaws.amazon.com
    official
  16. CVE-2025-23206: AWS CDK Information Disclosure Flawsentinelone.com
    security