Hidden Fees Bite Backblaze B2 vs Wasabi vs R2 Buyers

Choosing between Backblaze B2 vs Wasabi vs R2 comes down to access patterns, not just the headline storage price. All three are S3-compatible object storage platforms aimed at lower-cost storage for backups, media libraries, static assets, and app data—but they price egress, API calls, minimums, regions, and immutability very differently.

For commercial buyers, the practical question is simple: will you mostly store data, frequently restore it, or serve it to users? The answer determines whether Backblaze B2’s flexible billing, Wasabi’s flat-fee model, or Cloudflare R2’s zero-egress architecture is the better fit.

Quick Verdict: Which Object Storage Provider Fits Each Use Case?

If you need a fast answer, here is the practical verdict for Backblaze B2 vs Wasabi vs R2 based on the sourced pricing models, backup integrations, egress policies, and regional differences.

The lowest storage price is not always the lowest bill. Minimum storage duration, egress policy, API charges, and CDN pairing can change the real cost dramatically.

Provider snapshot

Pricing Models Compared: Storage, Egress, API Calls, and Minimums

Pricing is the most important part of the Backblaze B2 vs Wasabi vs R2 decision, but the per-GB storage rate tells only part of the story. The real bill depends on four moving parts: storage, egress, API operations, and minimum billing rules.

Storage pricing

Backblaze B2 is consistently listed in the source data at about $0.006/GB/month, or $6/TB/month. It has no minimum storage volume and no minimum storage duration, which makes it attractive for smaller datasets and short-lived backup sets.

Wasabi is listed by 2026 comparison sources at about $0.0068–$0.0069/GB/month, or $6.99/TB/month. However, it enforces a 1TB minimum monthly billing floor and a 90-day minimum storage duration per object.

Cloudflare R2 is listed at about $0.015/GB/month, making it the most expensive of the three on pure storage cost. Its trade-off is that it charges $0 for egress, which can matter more than storage price for download-heavy workloads.

Egress pricing

Egress is where these platforms diverge sharply.

Backblaze B2 sources cite $0.01/GB for egress beyond included allowances. 2026 comparison data also lists free egress up to 3x average monthly stored data, with unlimited free egress to Bandwidth Alliance partners including Cloudflare, Fastly, bunny.net, and Vultr.

Wasabi positions itself around no standard egress fees, but sourced comparison data also notes a 1:1 free egress ratio and a 100TB/month absolute egress cap. That means Wasabi works well when download volume is proportional to stored volume, but it may not be ideal for high-volume public delivery.

Cloudflare R2’s standout feature is $0 egress fees. For applications, media, or static assets that are downloaded frequently, this can outweigh its higher storage price.

API request charges

API charges are usually small for simple backup workloads, but they can matter when storing millions of small objects or running frequent sync jobs.

Wasabi is the simplest: sources list $0 API request charges.

Backblaze B2 charges transaction fees. Source data lists $0.004 per 10,000 Class B or Class C transactions, and one comparison notes that 100 million API calls/month would add about $40 on B2 while Wasabi would add $0.

Cloudflare R2 includes a generous free API tier. Source data lists 1 million Class A operations free monthly, then $4.50/million. NAS-focused source data also lists 10 million Class B operations/month in the free tier.

Minimum billing rules

This is one of the biggest hidden differences.

Backblaze B2 has no minimum storage volume and no minimum retention period. That means a business can store 100GB and pay for roughly that usage rather than being billed as if it stored 1TB.

Wasabi has a 1TB monthly minimum and a 90-day minimum storage duration per object. If you delete an object after 30 days, source data says you can still be charged for the remaining period under the minimum-duration model.

Cloudflare R2 has no minimum storage duration in the source data, making it more predictable for high-churn data than Wasabi.

Wasabi’s 90-day minimum is not a problem for long-term archives. It can become expensive for daily backup sets, temporary files, or aggressive retention policies.

Performance and Reliability: Uploads, Downloads, Durability, and Regions

The source data includes practical performance observations, regional coverage, and feature-level reliability indicators such as versioning, lifecycle rules, and Object Lock. It does not provide vendor-neutral durability percentages or independent benchmark numbers, so this section avoids invented durability claims.

Upload and download performance

Onidel’s comparison describes Cloudflare R2 as having excellent global performance because of Cloudflare’s extensive edge network. That makes R2 a natural fit for globally distributed access patterns.

Backblaze B2 is described as having solid performance, particularly from US locations. NAS-focused source data also emphasizes that B2 is straightforward to configure for Synology and QNAP backups.

Wasabi is described as having good performance with some geographic variation. Its regional footprint is broader than B2’s in the source data, including US, EU, and AP locations.

Regions and data location

Regional coverage can matter for latency, compliance, and data residency.

Backblaze B2 regions are listed as US West, US East, and EU Central. For businesses outside those areas, latency and data residency may be considerations.

Wasabi has broader regional coverage in the source data. One 2026 source lists 16+ global regions with uniform pricing, while NAS-focused data lists US, EU, and AP regions, including Sydney, Singapore, and Japan.

Cloudflare R2 is described as globally distributed through Cloudflare’s network, but the NAS-focused source notes no region selection. That can be a trade-off for organizations with strict data-residency requirements.

Reliability features: versioning, lifecycle, and immutability

For backups, reliability is not just uptime. It is also whether you can recover clean versions after deletion, corruption, or ransomware.

Backblaze B2 supports versioning, lifecycle rules, and Object Lock with compliance and governance modes in the source data. NAS-focused source data specifically recommends keeping at least 30 days of version history to protect against ransomware overwriting clean backups.

Wasabi supports versioning, Object Lock / immutable storage, and server-side encryption. Its lifecycle management is described as more limited and primarily deletion-based in one source.

Cloudflare R2 supports basic lifecycle rules for object expiration, but sourced data says its immutability features are limited. NAS-focused data states that R2 has no Object Lock as of early 2026 and versioning is in beta.

S3 Compatibility: Tools, Backup Software, and Migration Considerations

All three platforms are S3-compatible, but the depth of compatibility and the setup experience vary.

Onidel’s source data says Cloudflare R2 covers 99% of common operations, Backblaze B2 has strong S3 compatibility through its native S3 API endpoint, and Wasabi has nearly complete S3 compatibility with some advanced feature limitations.

Backup and sync tools

The source data specifically mentions compatibility with common backup and storage tools:

Backblaze B2 is especially strong for NAS users because the source data lists a native Synology Hyper Backup connector and extensive documentation. For many teams, that reduces deployment time and operational risk.

Wasabi uses the generic S3 endpoint path rather than a proprietary NAS connector in the NAS source, but setup is described as well understood and compatible with major NAS backup tools.

Cloudflare R2 may require more technical setup. The NAS source states there is no pre-built Synology Hyper Backup connector for R2, and some users can encounter endpoint configuration issues on older NAS firmware.

Migration considerations

RcloneView’s source data emphasizes that S3-compatible tools can manage multiple providers from one interface. It lists one-click jobs such as copy, sync, and compare, plus schedulers and history for automation.

For migrations, the same source gives examples such as:

• Wasabi → B2: Test performance and access patterns before committing.
• B2 → IDrive e2: Move cold archives to cheaper storage, where applicable.
• AWS S3 → alternatives: Reduce reliance on AWS S3 pricing.

For this comparison, the main point is that S3 compatibility lowers migration friction, but it does not make every feature portable. Object Lock behavior, lifecycle rules, IAM compatibility, endpoint configuration, and region selection still require testing.

S3-compatible does not always mean feature-identical. Test lifecycle rules, Object Lock, versioning, and restore workflows before moving production backups.

Best Choice for Website Assets, Video, and Media Delivery

For media delivery and website assets, egress is usually the deciding factor. A low storage price can become irrelevant if downloads are frequent.

Cloudflare R2 for high-download assets

Cloudflare R2 is the clearest fit when you expect frequent downloads because the source data lists $0 egress fees. It also benefits from Cloudflare’s global network, which Onidel describes as providing excellent global performance.

R2’s higher storage cost—about $0.015/GB/month—means it is not the cheapest place to park cold data. But for web assets, static files, app downloads, or frequently accessed media, eliminating egress can simplify cost planning.

Best fit for R2:

• Static assets: Files downloaded often by users.
• App data: Workloads where retrieval volume is hard to predict.
• Global access: Use cases that benefit from Cloudflare’s network.
• Test restores: Backups or datasets frequently downloaded for validation.

Backblaze B2 for CDN-paired delivery

Backblaze B2 becomes especially compelling when paired with supported CDN partners. Source data lists unlimited free egress to Bandwidth Alliance partners including Cloudflare, Fastly, bunny.net, and Vultr.

That means B2 can work well for media archives or website files served through Cloudflare or another listed partner. Its storage price is also lower than R2’s at about $0.006/GB/month.

Best fit for B2 media delivery:

• Cloudflare-backed sites: Free egress to Cloudflare-connected delivery paths.
• Media archives: Lower storage price than R2.
• Mixed workloads: Backups plus occasional public delivery.
• Teams avoiding minimums: No 1TB floor or 90-day object charge.

Wasabi for media libraries with predictable access

Wasabi can be attractive for media libraries because it has no standard API charges and no standard egress charges in the source data. However, sourced comparisons also cite a 1:1 egress ratio and 100TB/month cap, so it is better suited to controlled access than high-volume public distribution.

Wasabi’s 90-day minimum storage duration also fits media libraries better than temporary web assets. If uploaded files are retained for months or years, the minimum-duration rule is much less of a concern.

Best fit for Wasabi media storage:

• Video archives: Large files retained long term.
• Stable media libraries: Low object churn.
• Predictable restores: Frequent enough to value no egress fees, but not beyond policy thresholds.
• Regional needs: AP regions such as Sydney, Singapore, and Japan are important.

Best Choice for Server Backups, Archives, and Disaster Recovery

For backup and disaster recovery, the priorities shift. You care less about public download volume and more about retention, restore testing, ransomware protection, and predictable billing.

Backblaze B2 for variable backup workloads

Backblaze B2 is the strongest general-purpose choice for variable backups. It has no minimum storage volume, no minimum storage duration, and source-listed integrations with Synology, QNAP, Veeam, MSP360, Arq, Synology, and rclone.

This matters for real backup schedules. Daily backups with short retention windows can create and delete objects frequently. On B2, hourly billing and no early deletion penalty avoid the hidden cost of minimum-duration storage.

Good B2 backup scenarios:

• Daily server backups: Especially with short retention.
• NAS backup: Synology Hyper Backup and QNAP Hybrid Backup Sync.
• Development environments: Temporary datasets and test backups.
• Small business backup: Start below 1TB without paying a minimum.

Wasabi for long-retention archives

Wasabi is best when data is written once and retained for at least 90 days. Its no-API-charge model and no standard egress fees simplify budgeting for large, stable repositories.

The source data specifically identifies Wasabi as a fit for compliance archives, cold backups retained for 90+ days, media libraries, and data lakes where historical data accumulates.

Good Wasabi backup scenarios:

• Compliance archives: Multi-month or multi-year retention.
• Cold backups: Rarely deleted before 90 days.
• Large repositories: Above the 1TB billing floor.
• Regional archive needs: Especially where AP regions matter.

Cloudflare R2 for frequent restore testing

Cloudflare R2 fits backup workflows where restores are frequent and egress unpredictability is unacceptable. Its $0 egress model removes a major cost concern for test restores or developer environments.

However, the source data shows weaker immutability support than B2 or Wasabi. If ransomware-resistant Object Lock is a hard requirement, B2 or Wasabi is better supported by the provided data.

Good R2 backup scenarios:

• Frequent restore testing: Download backups without egress fees.
• High-churn storage: No 90-day minimum duration in the source data.
• Developer backups: Especially if already using Cloudflare.
• Global retrieval: Access patterns benefiting from Cloudflare’s network.

Security and Compliance: Encryption, Access Controls, and Data Residency

Security features vary meaningfully across these three providers. For regulated backups, immutable storage and access controls may matter more than storage price.

Encryption and access controls

Backblaze B2 source data lists encryption at rest with SSE-B2 and SSE-C. It also supports Object Lock and versioning. However, one source lists IAM API compatibility as No for B2.

Wasabi source data lists server-side encryption, Object Lock at bucket and object level, versioning, and IAM API compatibility. It is also listed as SOC 2 and ISO 27001 compliant in one comparison source.

For Cloudflare R2, the source data is thinner on encryption and compliance specifics. The provided sources focus more on zero egress, S3 compatibility, lifecycle expiration, and global delivery. Where immutability is concerned, R2 is described as limited.

Data residency

Data residency is one of the clearest differences.

Backblaze B2 is listed with US West, US East, and EU Central regions. That may be enough for many US and EU workloads, but it can be limiting for Asia-Pacific buyers.

Wasabi has the broadest source-listed regional coverage. It is listed with 16+ global regions and specific AP options including Sydney, Singapore, and Japan. For Australian organizations, the source data specifically notes that Wasabi’s Sydney region keeps data onshore and avoids transatlantic latency.

Cloudflare R2 is globally distributed through Cloudflare’s network, but the NAS source states there is no region selection. That may be acceptable for globally served content, but it can be a limitation for strict residency rules.

For compliance-driven storage, do not evaluate only the S3 API. Confirm Object Lock, retention mode, region selection, and restore procedures before committing production data.

Hidden Costs to Watch: Retrieval Fees, CDN Pairing, and Vendor Lock-In

Object storage bills often surprise teams because “cheap per GB” does not include every operational pattern. The biggest hidden costs in Backblaze B2 vs Wasabi vs R2 are minimums, egress pathways, request volume, and feature portability.

1. Wasabi’s 90-day minimum storage duration

Wasabi’s 90-day minimum is the most important hidden cost for high-churn workloads.

If your backup policy deletes objects after 30 days, source data explains that deleted objects can still be charged for the remaining period. In that pattern, the effective cost may be much higher than the headline per-GB rate.

Watch out if you have:

• Short retention: Daily or weekly backups deleted before 90 days.
• Temporary files: CI/CD artifacts, cache data, or processing outputs.
• Small datasets: Anything far below the 1TB minimum billing floor.
• Frequent overwrites: Backup sets that churn rapidly.

2. Backblaze B2 transaction and non-partner egress fees

Backblaze B2 is flexible, but it is not always flat-rate. Source data lists transaction fees of $0.004/10,000 for certain operation classes, and egress overage at $0.01/GB beyond included allowances.

For most backup workloads, API charges may be small. But with millions of small objects, API calls can become visible. One source notes 100 million API calls/month would add about $40 on B2.

Watch out if you have:

• Millions of small objects: More list/read/write operations.
• Non-CDN downloads: Egress outside free partner paths.
• Unpredictable restores: Download volume may exceed included allowances.

3. Cloudflare R2’s higher storage rate

Cloudflare R2’s storage price is higher than B2 and Wasabi in the source data: about $0.015/GB/month.

That is not necessarily a problem. If egress is high, R2 may still be economical. But for cold archives that are rarely downloaded, you may pay more than necessary for storage.

Watch out if you have:

• Cold archives: Rarely accessed data.
• Large static repositories: Many TB stored with low egress.
• Strict data residency: Source data notes no region selection.

4. CDN pairing assumptions

Backblaze B2 can be very cost-effective when paired with Cloudflare or other Bandwidth Alliance partners. But that assumes your architecture actually routes delivery through those partners.

Wasabi supports CDN integration via third parties in source data, but it does not have the same listed free egress partner network as B2.

Cloudflare R2 is naturally aligned with Cloudflare’s network and zero-egress model, but buyers should still validate application compatibility and setup complexity.

5. Feature lock-in despite S3 compatibility

S3 compatibility helps migration, but advanced features are not always identical.

Object Lock, lifecycle transitions, IAM behavior, bucket policies, endpoint formats, and region selection can vary. Before migrating, test the exact workflow: upload, list, restore, delete, lifecycle expiration, version recovery, and immutable retention.

Final Recommendation: When to Choose Backblaze B2, Wasabi, or Cloudflare R2

The best provider is the one that matches how your data behaves.

Choose Backblaze B2 if you want the most flexible, general-purpose low-cost object storage. It is especially strong for backups, NAS use, small business workloads, and variable retention. Its lack of minimums, $0.006/GB/month storage price, 10GB free tier, Object Lock, versioning, and strong backup ecosystem make it a practical default.

Choose Wasabi if your data is large, stable, and retained for at least 90 days. It works well for long-term archives, media libraries, compliance retention, and organizations that value no API request charges. Its 1TB minimum and 90-day minimum duration make it less suitable for small or high-churn workloads.

Choose Cloudflare R2 if egress is your biggest concern. Its $0 egress model and Cloudflare network fit website assets, frequently accessed media, app data, and restore-heavy workflows. The trade-offs are a higher storage price and weaker immutability support in the provided source data.

For most businesses comparing Backblaze B2 vs Wasabi vs R2, the safest process is to model three months of real usage: average stored TB, monthly downloads, object churn, API request volume, and restore testing. Then test the operational workflow before moving production data.

Bottom Line

Backblaze B2 is the most balanced choice for backups and variable workloads because it has low storage pricing, no minimums, Object Lock, versioning, and strong NAS/tool support.

Wasabi is best for large, stable datasets that stay longer than 90 days, especially when no API charges and broad regional coverage matter.

Cloudflare R2 is best when downloads are frequent or unpredictable because its zero-egress model directly addresses one of object storage’s biggest cost risks.

If your primary need is backups, start your evaluation with B2 and Wasabi. If your primary need is media delivery, static assets, or frequent retrieval, include R2 early in the shortlist.

FAQ: Backblaze B2 vs Wasabi vs R2

Is Backblaze B2 cheaper than Wasabi?

For storage alone, source data lists Backblaze B2 at about $0.006/GB/month and Wasabi at about $0.0068–$0.0069/GB/month. B2 also has no minimum storage volume, while Wasabi has a 1TB minimum billing floor.

However, Wasabi has no API request charges, while B2 has transaction fees. For very high API-operation workloads, that difference can narrow the gap.

Does Cloudflare R2 really have no egress fees?

Yes, the provided source data lists Cloudflare R2 egress at $0. That is its main advantage over many object storage services.

R2’s trade-off is a higher storage price of about $0.015/GB/month, so it is most attractive when data is downloaded frequently.

Which is best for NAS backups: Backblaze B2, Wasabi, or R2?

For most NAS backup users, the source data points to Backblaze B2 as the easiest default. It has a native Synology Hyper Backup connector, QNAP support through S3, versioning, Object Lock, lifecycle rules, and no minimum duration.

Wasabi is strong for larger archives retained longer than 90 days. R2 can work via S3 endpoints, but the source data notes more setup friction, especially with some Synology configurations.

Which provider is best for ransomware-resistant backups?

Based on the provided source data, Backblaze B2 and Wasabi are stronger choices because both support Object Lock / immutability and versioning.

Cloudflare R2 has limited immutability features in the source data, and one NAS-focused source states that R2 has no Object Lock as of early 2026.

Which provider is best for video and media delivery?

For frequently downloaded media, Cloudflare R2 is attractive because of $0 egress. Backblaze B2 is also strong when paired with Cloudflare or other listed Bandwidth Alliance partners for free egress.

Wasabi can work well for media libraries, especially stable archives, but sourced data cites a 1:1 egress ratio and 100TB/month cap, making it less ideal for heavy public distribution.

Can I migrate between these providers easily?

Generally, yes, because all three are S3-compatible. Source data mentions tools like rclone and RcloneView for copying, syncing, comparing, and automating multi-cloud workflows.

Still, test before migrating production data. S3 compatibility does not guarantee identical behavior for Object Lock, lifecycle rules, IAM compatibility, versioning, or region configuration.