Comparison

Cloudflare R2 vs SeaweedFS

No leader: the top candidate Cloudflare R2 has only 0.21 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Cloudflare R255
SeaweedFS53
Score
vioscaleAI score
Cloudflare R255 / 100low · 21%
SeaweedFS53 / 100low · 28%
Pricing
Free tier
Cloudflare R2✓
SeaweedFS✓
Model
Cloudflare R2freemium
SeaweedFScommercial
Price level
Cloudflare R2low
SeaweedFSfree
Starting price
Cloudflare R2$0.01
SeaweedFS–
Transparent
Cloudflare R2✓
SeaweedFS✓
Integrations
Count
Cloudflare R21
SeaweedFS6
Adoption
Dependent repos
Cloudflare R2–
SeaweedFS1
Github stars
Cloudflare R2–
SeaweedFS35,465
Activity
Commits last 30d
Cloudflare R2–
SeaweedFS100
Release
Cadence days
Cloudflare R2–
SeaweedFS5
History
Cloudflare R2–
SeaweedFS20 items
License
Spdx
Cloudflare R2–
SeaweedFSApache-2.0
Language
Primary
Cloudflare R2–
SeaweedFSGo
Market
Availability
Content
Faq
Cloudflare R25 items
SeaweedFS6 items

Capabilities

Feature-by-feature on the axes that matter for file storage. “-” means undocumented, not absent.

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

What each one is

The product in its own terms, so the numbers below have context.

Cloudflare R2

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.

Independently observed

SeaweedFS

SeaweedFS is a distributed storage system that provides object storage with S3 API compatibility, POSIX file system support, and lakehouse capabilities. It enables constant-time read and write operations, cloud storage tiering, and transparent scaling by adding additional volume servers.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Cloudflare R2

from $0.01/GB/moUsage-basedFree tier

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.

  • StandardFree
    • S3-compatible API
    • Global distribution
    • Zero egress fees
  • Infrequent AccessStorage $0.01/GB/month; Class A ops $9.00/M; Class B ops $0.90/M; Data retrieval $0.01/GB
    • Lower storage cost
    • Higher operation costs
    • Data retrieval fees
as of verify ↗

SeaweedFS

Open sourceFree tier

Free and open source (Apache license)

as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Cloudflare R2✓
SeaweedFS✗
Linux
Cloudflare R2✗
SeaweedFS✓
CLI
Cloudflare R2✗
SeaweedFS✓
Deployment
Cloud / SaaS
Cloudflare R2✓
SeaweedFS✗
Self-hosted
Cloudflare R2✗
SeaweedFS✓
On-premise
Cloudflare R2✗
SeaweedFS✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • AWS S3

Cloudflare R2

2 total - 1 not shared
  • Cloudflare Workers
Independently observed

SeaweedFS

16 total - 15 not shared
  • DuckDB
  • Apache Spark
  • Trino
  • Dremio
  • RisingWave
  • AWS SDK
  • AWS CLI
  • Google Cloud Storage
  • Azure
  • Backblaze B2
  • Wasabi
  • Storj
  • Spark
  • rclone
  • restic
Independently observed
Still deciding?

Cloudflare R2 or SeaweedFS: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.