# Cloudflare R2

> S3-compatible object storage with no egress fees

Cloudflare R2 is a managed object store with an S3-compatible API and no charge for data transfer out at any volume, plus a built-in managed Apache Iceberg catalog currently in public beta.

Website: https://www.cloudflare.com/products/r2/

## Use it when

- Egress is the cost that hurts: R2 charges nothing for data transfer out at any volume, which is what makes multi-engine and multi-cloud reads affordable.
- Data is served to the internet or into Workers, where the free-egress shape compounds.
- Existing S3 tooling should move over by changing an endpoint and credentials.
- An Iceberg lakehouse on the bucket appeals: R2 Data Catalog is a managed Iceberg REST catalog reachable from Spark, Snowflake, and PyIceberg.

## Think twice when

- You need the long tail of S3 features; ACLs, versioning, tagging, replication rules, and per-object locks are absent.
- Data must live in a chosen region with cross-region replication; buckets are single-region with location hints and jurisdiction restrictions only.
- The catalog is the point today: R2 Data Catalog is public beta, worth evaluating but not yet depending on.
- Heavy compute sits in another cloud's region anyway, where that provider's store keeps traffic in-region and free.

## How it runs

Fully managed with eleven-nines durability from replication and erasure coding within a region. Billing is per GB-month plus Class A and Class B operations, nothing for egress. Events flow to Queues consumed by Workers, and a standing free tier covers 10 GB and millions of operations monthly.

## Details

### General

| Attribute | Value |
| --- | --- |
| License | Commercial |
| Deployment | Managed |
| Operational complexity | Low |
| Pricing | Free, Subscription |
| Documentation | https://developers.cloudflare.com/r2/ |

### Object Storage

| Attribute | Value |
| --- | --- |
| S3 API | Compatible: no ACLs, versioning, tagging or replication rules |
| Interfaces | Object, Workers binding |
| Egress | Zero: free from R2, including the S3 API and Workers |
| Storage tiers | Standard and Infrequent Access |
| Minimum duration | None on Standard; 30 days on Infrequent Access |
| Durability model | Eleven nines annual; replication and erasure coding within a region |
| Multi-region | Single-region buckets: location hints or EU/FedRAMP jurisdictions, no cross-region replication |
| Event notifications | To Queues, consumed by a Worker |
| Immutability | Bucket locks: retain for a period, until a date, or indefinitely; no per-object lock |
| Minimum deployment | None: fully managed |

## Capabilities

- [Object Storage](https://matca.io/capabilities/object-storage)

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Source: https://matca.io/cloudflare-r2
Last updated: 2026-08-31T11:40:49.252Z