# Amazon S3 vs Cloudflare R2

| Attribute | Amazon S3 | Cloudflare R2 |
|---|---|---|
| **vioscaleAI score** | 59.5 (73% (medium)) | 54.6 (21% (low)) |
| content.faq | `[{"answer":"Amazon S3 is a distributed cloud storage platform that allows organizations to store, retrieve, and manage any volume of data. It offers multiple storage classes optimized for different access patterns and use cases, along with built-in analytics, compliance controls, and security features. It is indexed under File Storage.","source":"https://aws.amazon.com/s3/pricing/?loc=ft","question":"What is Amazon S3?","confidence":0.6},{"answer":"Amazon S3 offers a free tier, so you can start without paying. Paid plans start at $0.03. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://aws.amazon.com/s3/pricing/?loc=ft","question":"Is Amazon S3 free?","confidence":0.6},{"answer":"Amazon S3 supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://aws.amazon.com/s3/pricing/?loc=ft","question":"What platforms does Amazon S3 support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Amazon S3, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://aws.amazon.com/pricing/?nc2=h_pr_hub","question":"Can Amazon S3 be self-hosted?","confidence":0.6},{"answer":"We have confirmed 19 integrations for Amazon S3, including Apache Iceberg, Dremio, DuckDB, HighByte Intelligence Hub, Ryft, AWS CloudFront, AWS Lambda and AWS API Gateway, plus 11 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://aws.amazon.com/s3/pricing/?loc=ft","question":"What does Amazon S3 integrate with?","confidence":0.6},{"answer":"We have independently confirmed HIPAA and GDPR for Amazon S3. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Amazon S3 not holding them. Always confirm compliance directly before you rely on it.","source":"https://aws.amazon.com/trust-center/?nc1=f_cc","question":"What security certifications does Amazon S3 have?","confidence":0.7}]` | `[{"answer":"A cloud-based object storage service with S3-compatible APIs that eliminates data egress fees and vendor lock-in, integrating directly into Cloudflare's serverless and edge computing platform. It is indexed under File Storage.","source":"https://www.cloudflare.com/plans","question":"What is Cloudflare R2?","confidence":0.6},{"answer":"Cloudflare R2 offers a free tier, so you can start without paying. Paid plans start at $0.01. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.cloudflare.com/plans","question":"Is Cloudflare R2 free?","confidence":0.6},{"answer":"Cloudflare R2 supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.cloudflare.com/plans","question":"What platforms does Cloudflare R2 support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Cloudflare R2, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.cloudflare.com/plans","question":"Can Cloudflare R2 be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Cloudflare R2. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Cloudflare R2 not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.cloudflare.com/solutions/security","question":"What security certifications does Cloudflare R2 have?","confidence":0.7}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | Amazon S3 is a distributed cloud storage platform that allows organizations to store, retrieve, and manage any volume of data. It offers multiple storage classes optimized for different access patterns and use cases, along with built-in analytics, compliance controls, and security features. | A cloud-based object storage service with S3-compatible APIs that eliminates data egress fees and vendor lock-in, integrating directly into Cloudflare's serverless and edge computing platform. |
| features.capabilities | `{"versioning":true,"storage_tiering":true,"object_lock_worm":true,"object_versioning":true,"s3_api_compatible":true,"encryption_at_rest":true,"lifecycle_policies":true,"event_notifications":true,"customer_managed_keys":true,"cross_region_replication":true,"multi_region_replication":true,"object_lock_immutability":true,"free_or_discounted_egress":true}` | `{"s3_api_compatible":true,"free_or_discounted_egress":true}` |
| integrations.count | 19 | 1 |
| integrations.list | `[{"name":"Apache Iceberg"},{"name":"Dremio"},{"name":"DuckDB"},{"name":"HighByte Intelligence Hub"},{"name":"Ryft"},{"name":"AWS CloudFront"},{"name":"AWS Lambda"},{"name":"AWS API Gateway"},{"name":"AWS Analytics Services"},{"name":"AWS Bedrock"},{"name":"Asana"},{"name":"Brave Search API"},{"name":"Pokee AI"},{"name":"Tailscale"},{"name":"TrendAI Vision One"},{"name":"Orca Security"},{"name":"Cast AI"},{"name":"LucidLink"},{"name":"Vanta"}]` | `[{"name":"AWS S3"},{"name":"Cloudflare Workers"}]` |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"usage","plans":[{"free":false,"name":"S3 Standard","features":["Full availability and durability guarantees"],"description":"General-purpose storage with frequent access","contactSales":false},{"free":false,"name":"S3 Intelligent-Tiering","features":["Automatic tiering between access tiers","No retrieval charges","Up to 80% cost reduction"],"description":"Automatic cost optimization through access pattern monitoring","contactSales":false},{"free":false,"name":"S3 Tables","features":["Native Apache Iceberg support","Automatic table compaction","Higher transaction throughput"],"components":[{"per":{"qty":1,"unit":"gb"},"kind":"metered","note":"first 50 TB per month","amount":0.0265,"currency":"USD"}],"description":"Optimized for Apache Iceberg analytics","contactSales":false},{"free":false,"name":"S3 Glacier Flexible Retrieval","features":["Cost-effective archival storage"],"description":"Long-term archival with retrieval fees","contactSales":false},{"free":false,"name":"S3 Glacier Deep Archive","features":["Deep archival for compliance and long-term retention"],"description":"Lowest-cost archival storage with longer retrieval times","contactSales":false},{"free":false,"name":"S3 Express One Zone","features":["Fastest cloud object storage","Single availability zone"],"description":"Highest-performance storage class","contactSales":false}],"addOns":[{"name":"Management & Insights"},{"name":"Data Transfer"},{"name":"API Requests"}],"summary":"Usage-based pricing with metered storage (per GB), request charges (per 1,000 operations), and data transfer costs. Free tier includes $200 in AWS Free Tier credits for 6 months.","currency":"USD","freeTier":true,"sourceUrl":"https://aws.amazon.com/s3/pricing/?loc=ft","retrievedAt":"2026-08-19T09:05:23.304Z","startingPrice":{"unit":"gb","amount":0.0265,"currency":"USD"},"billingPeriods":["month"]}` | `{"type":"usage","plans":[{"free":true,"name":"Standard","summary":"Storage $0.015/GB/month (10GB free); Class A ops $4.50/M (1M free); Class B ops $0.36/M (10M free)","features":["S3-compatible API","Global distribution","Zero egress fees"],"components":[{"per":{"qty":1,"unit":"GB"},"kind":"metered","amount":0.015,"period":"month","currency":"USD"},{"per":{"qty":1000000,"unit":"requests"},"kind":"metered","amount":4.5,"currency":"USD"},{"per":{"qty":1000000,"unit":"requests"},"kind":"metered","amount":0.36,"currency":"USD"}],"description":"Storage tier optimized for frequent access patterns","contactSales":false,"includedLimits":{"storage":"10 GB/month","class_a_operations":"1 million/month","class_b_operations":"10 million/month"}},{"free":false,"name":"Infrequent Access","summary":"Storage $0.01/GB/month; Class A ops $9.00/M; Class B ops $0.90/M; Data retrieval $0.01/GB","features":["Lower storage cost","Higher operation costs","Data retrieval fees"],"components":[{"per":{"qty":1,"unit":"GB"},"kind":"metered","amount":0.01,"period":"month","currency":"USD"},{"per":{"qty":1000000,"unit":"requests"},"kind":"metered","amount":9,"currency":"USD"},{"per":{"qty":1000000,"unit":"requests"},"kind":"metered","amount":0.9,"currency":"USD"},{"per":{"qty":1,"unit":"GB"},"kind":"metered","amount":0.01,"period":"month","currency":"USD"}],"description":"Lower-cost tier for infrequently accessed data with retrieval fees","contactSales":false}],"summary":"Usage-based pricing. Standard: from $0.015/GB/month storage. Infrequent Access: from $0.01/GB/month. Free tier includes 10GB/month storage with per-operation allowances.","currency":"USD","freeTier":true,"sourceUrl":"https://www.cloudflare.com/plans","retrievedAt":"2026-10-12T15:29:33.672Z","startingPrice":{"unit":"GB","amount":0.01,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | low | low |
| pricing.starting_price | `{"amount":0.0265,"currency":"USD"}` | `{"amount":0.01,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| reliability.sla_pct | 99.99 | - |
| security.disclosure_policy | yes | - |
| security.fedramp | yes | - |
| security.gdpr | yes | yes |
| security.hipaa | yes | - |
| security.pci | yes | - |
| security.trust_center | https://aws.amazon.com/compliance/?nc2=h_dsc_aa_cmp | https://www.cloudflare.com/solutions/security |

## Capabilities (File Storage)

| Capability | Amazon S3 | Cloudflare R2 |
|---|:--:|:--:|
| **Capabilities** |  |  |
| S3 API compatible | ✓ | ✓ |
| Storage tiering | ✓ | - |
| Multi region replication | ✓ | - |
| Erasure coding | - | - |
| Object versioning | ✓ | - |
| Object lock immutability | ✓ | - |
| Encryption at rest | ✓ | - |
| Customer managed keys | ✓ | - |
| Free or discounted egress | ✓ | ✓ |
| Open source | - | - |
| CDN integration | - | - |

*Source: vioscaleAI. Generated 2026-10-17T20:15:47.102Z. "-" = undocumented, not absent.*