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Head-to-head · Object Storage Services

Backblaze B2 Cloud Storage vs MinIO AIStor

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Backblaze B2 Cloud Storage #6 in Object Storage Services 8.8/10 Free plan Free plan✓ 4 of 4 features Visit Backblaze
MinIO AIStor #7 in Object Storage Services 8.7/10 Free plan · pricing on request · 60-day trial Free planFree trial✓ 4 of 4 features Visit MinIO AIStor

Backblaze B2 Cloud Storage leads on 0 checks, MinIO AIStor on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreBackblaze B2 Cloud Storage · 8.8/10
  • Free planboth
  • Free trialonly MinIO AIStor

Backblaze B2 Cloud Storage scores higher on our rubric for object storage services: 8.8 against 8.7 out of 10; our editors rank them #6 and #7.

Backblaze B2 Cloud Storage is the better fit for low-cost storage and backup integrations. MinIO AIStor is the better fit for enterprise self-hosted S3 storage.

  • Backblaze B2 Cloud Storage fits best

    Low-cost storage and backup integrations

  • MinIO AIStor fits best

    Enterprise self-hosted S3 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 Backblaze B2 Cloud Storage 8.8/10 Visit ↗ MinIO AIStor 8.7/10 Visit ↗
At a glance
Editor score 8.8 8.7
Ranking #6 in Object Storage Services #7 in Object Storage Services
Best for Low-cost storage and backup integrations Enterprise self-hosted S3 storage
Pricing model Free plan + paid Free plan + paid
Starting price — —
Free plan ✓ ✓
Free trial — 60 days
Deployment Cloud Cloud, Desktop, Self-hosted
Platforms Web Web, Linux, Windows, macOS
Integrations 8 integrations 9 integrations
Features Backblaze B2 Cloud Storage 4/4 · MinIO AIStor 4/4
S3 compatibility ✓ ✓
Object versioning ✓ ✓
Lifecycle rules ✓ ✓
Object immutability ✓ ✓
Specs
Max object size 10000 GB Not checked yet
Replication scope Cross-region Cross-region
Our review
Pros
  • First 10GB of storage is always free
  • S3 and native B2 APIs support application and backup workflows
  • Object Lock, version retention, and cross-region replication included
  • S3 compatibility with Apache Iceberg tables and SFTP access
  • WORM retention, KMS encryption, IAM, audit logs, and monitoring
  • Cross-site replication supports distributed object-storage deployments
Cons
  • Feature breadth is narrower than the highest-ranked cloud platforms
  • Free egress is limited to 3x average monthly storage
  • The listed plan uses pay-as-you-go monthly billing
  • Free is limited to a single-node deployment
  • Enterprise Lite and Enterprise use contact-sales pricing
  • Paid support and multi-node scale require an enterprise tier
Our verdict

Backblaze B2 Cloud Storage is an always-hot object storage service for businesses, developers, IT teams, and individuals. It stores files in buckets accessible through a web interface, command-line tools, and APIs. The service is…

Read the review →

MinIO AIStor is a self-hosted object storage platform for enterprises running AI, analytics, and other data-intensive workloads. It provides S3-compatible storage for models, datasets, documents, checkpoints, embeddings, media, and logs,…

Read the review →
  1. Backblaze B2 Cloud StorageObject Storage Services 8.8Free plan
  2. MinIO AIStorObject Storage Services 8.7Free plan · pricing on request · 60-day trial

Strengths and trade-offs

  • Backblaze B2 Cloud Storage — where it wins

    • First 10GB of storage is always free
    • S3 and native B2 APIs support application and backup workflows
    • Object Lock, version retention, and cross-region replication included

    Where it doesn't

    • Feature breadth is narrower than the highest-ranked cloud platforms
    • Free egress is limited to 3x average monthly storage
    • The listed plan uses pay-as-you-go monthly billing

  • MinIO AIStor — where it wins

    • S3 compatibility with Apache Iceberg tables and SFTP access
    • WORM retention, KMS encryption, IAM, audit logs, and monitoring
    • Cross-site replication supports distributed object-storage deployments

    Where it doesn't

    • Free is limited to a single-node deployment
    • Enterprise Lite and Enterprise use contact-sales pricing
    • Paid support and multi-node scale require an enterprise tier
  • Backblaze B2 Cloud Storage8.8/10 · Free plan

    A low-cost object storage option with strong backup, retention, and replication features.

    Visit BackblazeFull verdict →
  • MinIO AIStor8.7/10 · Free plan · pricing on request · 60-day trial

    A self-hosted S3 platform with broad controls, replication, and a free single-node tier.

    Visit MinIO AIStorFull verdict →

More comparisons

All object storage services comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update