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Object Storage comparison · 2026
MinIO and Backblaze B2 are remarkably evenly matched in the Object Storage space, scoring 86 and 86 overall respectively on our radar methodology. MinIO leads on Egress Cost (100 vs 88). The two are closest on Price / Value, where the gap is just 2 points. Both offer a free tier, making either a low-risk starting point. Use the radar chart and dimension table below to find which fits your specific priorities best.
MinIO
Open-source, self-hosted S3-compatible object storage
86/100
Backblaze B2
The cheapest reliable cloud storage on the market
86/100
Radar comparison
MinIO
86
Backblaze B2
86
Durability
Data redundancy guarantees and SLA-backed durability.
Price / Value
Storage cost per GB and egress fees.
Performance
Upload/download throughput and latency.
Developer UX
SDK quality, S3 API compatibility, and setup speed.
Egress Cost
Cost of transferring data out — often the hidden expense.
Ecosystem
CDN integration, multi-region support, and tooling.
Overall Score
MinIO and Backblaze B2 score identically in our overall RadarTrek assessment — both earn 86/100 across 6 scored dimensions. This is one of the closest object storage comparisons in our database. The right choice depends entirely on which specific dimension matters most to your use case — use the dimension breakdown above to compare scores on your priority criterion.
Both MinIO and Backblaze B2 offer a free tier, so entry-level cost is not a differentiating factor. Compare the feature and usage limits of each free plan to see which gives you more headroom before a paid upgrade is needed.
MinIO scores higher on Egress Cost — 100/100 versus 88/100 for Backblaze B2. If egress cost is your primary decision criterion, MinIO is the stronger choice in this head-to-head.
Switching between object storage tools is generally possible but involves migration effort: exporting your data or configuration from MinIO, re-importing or reconfiguring in Backblaze B2, and updating any API integrations or environment variables in your codebase. The effort scales with how deeply embedded the tool is in your stack. Test Backblaze B2 on a non-production project first before migrating.
MinIO (86/100) is the better fit for teams who prioritise egress cost — its strongest dimension — and who want a free entry point. Backblaze B2 (86/100) is the better fit for teams who prioritise price / value and want a free entry point. If both dimensions matter equally, the overall score winner (either tool) is the safer default choice.
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