Storage
KV, D1, R2, and Vectorize storage services
Cloudflare offers four storage services, each optimized for different access patterns.
Overview
| Service | Type | Best For | Consistency |
|---|---|---|---|
| KV | Key-value store | Read-heavy, eventually consistent data | Eventual |
| D1 | SQL database (SQLite) | Relational data, complex queries | Strong |
| R2 | Object storage (S3-compatible) | Files, images, large blobs | Strong |
| Vectorize | Vector database | Embedding similarity search, RAG retrieval | Async index updates |
Choosing the Right Service
graph TD
A[What kind of data?] --> B{Structured/relational?}
B -->|Yes| C[D1 - SQL database]
B -->|No| D{Large files/blobs?}
D -->|Yes| E[R2 - Object storage]
D -->|No| H{Vector embeddings for similarity search?}
H -->|Yes| I[Vectorize - Vector database]
H -->|No| F{Read-heavy, ok with eventual consistency?}
F -->|Yes| G[KV - Key-value store]
F -->|No| C
In This Section
KV -- Key-value namespace usage patterns
D1 -- SQL database with SQLite
R2 -- Object storage for files
Vectorize -- Vector database for embeddings and similarity search
Revision History
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