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The cheapest reliable cloud storage on the market
Overall score
86/100
Verdict
Excellent
Pricing
Free
Performance radar — Backblaze B2
Score breakdown
Durability
Data redundancy guarantees and SLA-backed durability.
Source: RadarTrek research
Price / Value
Storage cost per GB and egress fees.
Source: RadarTrek research
Performance
Upload/download throughput and latency.
Source: RadarTrek research
Developer UX
SDK quality, S3 API compatibility, and setup speed.
Source: RadarTrek research
Egress Cost
Cost of transferring data out — often the hidden expense.
Source: RadarTrek research
Ecosystem
CDN integration, multi-region support, and tooling.
Source: RadarTrek research
Backblaze B2 offers the lowest per-GB storage price among major providers, with S3-compatible API and a generous free egress allowance via the Bandwidth Alliance with Cloudflare and Fastly.
In our independent evaluation across 6 scored dimensions, Backblaze B2 earns an overall score of 86/100 — a strong result in the object storage category. The platform is available including a permanently free tier, accessible to teams at any budget level. The score of 86 places it in the excellent tier of our object storage rankings, where we assess tools on criteria that matter to builders: durability, price / value, performance, and more.
Backblaze B2 scores highest on Price / Value (96/100) and Durability (90/100), placing it among the stronger performers in those areas within the object storage category. The dimensions with the most room for improvement are Ecosystem (68/100) and Developer UX (78/100) — teams who weight these criteria most heavily should compare Backblaze B2 carefully against alternatives before committing. The free entry point makes it easy to validate Backblaze B2 before committing to a paid plan — a practical advantage when evaluating a new tool category. Our recommendation: Backblaze B2 is worth a serious evaluation for teams that prioritise price / value — use the radar chart and dimension breakdown on this page to see at a glance whether its profile matches your priorities.
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Yes — Backblaze B2 is free to use with no trial period or credit card required. It offers a permanently free tier, though paid plans with higher limits or additional features are typically available. Check the official pricing page for current plan details.
Backblaze B2 scores highest on Price / Value in our independent assessment — 96/100, placing it among the stronger performers in this dimension within the object storage category. Storage cost per GB and egress fees.. Teams who count price / value as a primary criterion should put Backblaze B2 high on their evaluation list.
The lowest-scoring dimension for Backblaze B2 in our testing is Ecosystem (68/100). This does not make it the wrong choice — if ecosystem is not a priority for your use case, the gap is irrelevant. But teams who weight ecosystem most heavily should compare Backblaze B2 carefully against alternatives before committing, using the radar chart on this page to see the full profile at a glance.
Backblaze B2 earns an overall RadarTrek score of 86/100 — a strong result in the object storage category. Scores above 75 indicate a tool that performs well across most dimensions without a critical weakness. At 86/100, Backblaze B2 is a reliable choice for most teams evaluating this space. Scores are reviewed when significant updates are released, so the number reflects the current version of the product.
The best alternative to Backblaze B2 depends on which dimension matters most to you. Use the "Compare with" links in the sidebar to see a head-to-head radar chart against any specific competitor in the object storage category. The main object storage category page ranks all tools by overall score and lets you filter by dimension to find alternatives that lead on your priority criterion.
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Specs