whichdb
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Cloudflare Workers KV vs kvdb.io

Cloudflare Workers KV: Globally cached, eventually consistent key-value store for read-heavy data at Cloudflare's edge. kvdb.io: Hosted key-value store driven by plain HTTP calls, with scoped access tokens, TTLs and Lua bucket scripts.

key differences

  • Cloudflare Workers KV is built for larger datasets (≤ 1 PB) than kvdb.io (≤ 100 GB).
  • Horizontal scaling is native in Cloudflare Workers KV and none in kvdb.io.
  • Transactions: Cloudflare Workers KV offers none ACID; kvdb.io offers limited.
  • Only Cloudflare Workers KV has json, encryption at rest.
  • Only kvdb.io has transactions, stored procedures, role-based access.

choose cloudflare-workers-kv for

  • +Feature flags and configuration at the edge
  • +URL redirects and routing tables
  • +Authentication tokens and API key lookups
  • +Caching rendered pages or API responses

best at · Edge, Cache, Coordination

choose kvdb-io for

  • +Counters and metrics from serverless functions
  • +Feature flags and small config values
  • +Prototypes and hackathon backends

best at · Coordination, Sessions, Edge

Cloudflare Workers KVGlobally cached, eventually consistent key-value store for read-heavy data at Cloudflare's edge.
kvdb.ioHosted key-value store driven by plain HTTP calls, with scoped access tokens, TTLs and Lua bucket scripts.
overview
Primary model
Key-Value
Key-Value
Also supports
–
–
Type
Managed service
Managed service
Status
Active
Active
Developer
Cloudflare
Pilvy LLC
First release
2018
2018
Latest version
–
–
License
ProprietaryProprietary (Cloudflare service)
ProprietaryProprietary service (JavaScript client MIT)
Free tier
✓
—
popularity
WhichDB Score
4.4
1.5
Rank
#404
#537
GitHub stars
–
–
Stack Overflow questions
12
–
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Small (≤ 100 GB)
Horizontal scaling
Native
None
Multi-region
Read replicas
None
ACID
None
Limited
Consistency
Eventual
Strong
Schema
Schemaless
Schemaless
Architecture
Distributed, Serverless
Serverless
deployment
Self-hosted
—
—
Vendor-managed cloud
✓
✓
Serverless
✓
✓
Embedded
—
—
Edge
✓
—
Clouds
Cloudflare
–
capabilities
Transactions
—
✓
Joins
—
—
Secondary indexes
—
—
Full-text search
—
—
Vector search
—
—
Geospatial
—
—
JSON
✓
—
Change data capture
—
—
Triggers
—
—
Stored procedures
—
✓
Materialized views
—
—
TTL / expiry
✓
✓
Pub/Sub
—
—
Columnar storage
—
—
In-memory
—
—
Durable persistence
✓
✓
Compression
—
—
Encryption at rest
✓
—
Role-based access
—
✓
Time travel
—
—
Branching
—
—
Online schema changes
—
—
Streaming ingest
—
—
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
Workers KV API
REST (key/prefix operations), Lua (bucket scripts)
Client languages
JavaScript, TypeScript, Python, Rust
JavaScript
Best for
Edge, Cache, Coordination, Sessions
Coordination, Sessions, Edge
Add more to this comparisonNot sure either fits? Try smart match

Cloudflare Workers KV vs kvdb.io: FAQ

What is the difference between Cloudflare Workers KV and kvdb.io?

Cloudflare Workers KV: Globally cached, eventually consistent key-value store for read-heavy data at Cloudflare's edge. kvdb.io: Hosted key-value store driven by plain HTTP calls, with scoped access tokens, TTLs and Lua bucket scripts. Cloudflare Workers KV is built for larger datasets (≤ 1 PB) than kvdb.io (≤ 100 GB). Horizontal scaling is native in Cloudflare Workers KV and none in kvdb.io. Transactions: Cloudflare Workers KV offers none ACID; kvdb.io offers limited.

When should I choose Cloudflare Workers KV over kvdb.io?

Choose Cloudflare Workers KV for feature flags and configuration at the edge; URL redirects and routing tables; and authentication tokens and API key lookups. Choose kvdb.io for counters and metrics from serverless functions; feature flags and small config values; and prototypes and hackathon backends.

Is Cloudflare Workers KV or kvdb.io more popular?

Cloudflare Workers KV ranks #404 on the WhichDB Score (4.4/100) and kvdb.io ranks #537 (1.5/100). Popularity is not fit: check the requirements that matter for your project.

Are Cloudflare Workers KV and kvdb.io open source?

No. Cloudflare Workers KV is proprietary, closed-source software. No. kvdb.io is proprietary, closed-source software.