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Apache CouchDB vs IBM Cloudant

Apache CouchDB: HTTP/JSON document database built around multi-master replication and offline-first sync. IBM Cloudant: IBM's managed, CouchDB-compatible JSON database with built-in search and geospatial queries.

key differences

  • Licensing: Apache CouchDB is open source (permissive) (Apache License 2.0); IBM Cloudant is proprietary (Proprietary IBM Cloud service).
  • IBM Cloudant is built for larger datasets (≤ 1 PB) than Apache CouchDB (≤ 10 TB).
  • Only IBM Cloudant has geospatial, encryption at rest.

choose apache-couchdb for

  • +Offline-first web and mobile apps with PouchDB
  • +Field data collection in low-connectivity environments
  • +Multi-site replication between edge locations and a central hub
  • +Document stores where HTTP-native access is valuable

best at · OLTP, Mobile/offline, Local-first

choose ibm-cloudant for

  • +Mobile apps syncing via PouchDB
  • +IoT data ingestion on IBM Cloud
  • +Hybrid setups replicating between on-prem CouchDB and the cloud

best at · OLTP, Mobile/offline, Search

Apache CouchDBHTTP/JSON document database built around multi-master replication and offline-first sync.
IBM CloudantIBM's managed, CouchDB-compatible JSON database with built-in search and geospatial queries.
overview
Primary model
Document
Document
Also supports
Search Engine
Search Engine, Spatial
Type
Database engine
Managed service
Status
Active
Active
Developer
Apache Software Foundation
IBM
First release
2005
2010
Latest version
3.5.3 (Oct 12, 2026)
–
License
Open source (permissive)Apache License 2.0
ProprietaryProprietary IBM Cloud service
Free tier
✓
✓
popularity
WhichDB Score
43.6
31.6
Rank
#41
#77
GitHub stars
7K
–
Stack Overflow questions
6.1K
1.2K
scale & guarantees
Comfortable data size
Medium (≤ 10 TB)
Large (≤ 1 PB)
Horizontal scaling
Native
Native
Multi-region
Active active
Active active
ACID
Limited
Limited
Consistency
Eventual
Eventual
Schema
Schemaless
Schemaless
Architecture
Distributed, Multi primary, Client server
Distributed, Multi primary
deployment
Self-hosted
✓
—
Vendor-managed cloud
—
✓
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
–
IBM Cloud
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
Mango (JSON query), JavaScript MapReduce views, Lucene query syntax (Nouveau)
Cloudant Query (Mango), JavaScript MapReduce views, Lucene search
Client languages
JavaScript, Python, Java, C#, Go, PHP, Ruby
Java, JavaScript, Python, Go
Best for
OLTP, Mobile/offline, Local-first, Edge
OLTP, Mobile/offline, Search, Geo
Add more to this comparisonNot sure either fits? Try smart match

Apache CouchDB vs IBM Cloudant: FAQ

What is the difference between Apache CouchDB and IBM Cloudant?

Apache CouchDB: HTTP/JSON document database built around multi-master replication and offline-first sync. IBM Cloudant: IBM's managed, CouchDB-compatible JSON database with built-in search and geospatial queries. Licensing: Apache CouchDB is open source (permissive) (Apache License 2.0); IBM Cloudant is proprietary (Proprietary IBM Cloud service). IBM Cloudant is built for larger datasets (≤ 1 PB) than Apache CouchDB (≤ 10 TB). Only IBM Cloudant has geospatial, encryption at rest.

When should I choose Apache CouchDB over IBM Cloudant?

Choose Apache CouchDB for offline-first web and mobile apps with PouchDB; field data collection in low-connectivity environments; and multi-site replication between edge locations and a central hub. Choose IBM Cloudant for mobile apps syncing via PouchDB; IoT data ingestion on IBM Cloud; and hybrid setups replicating between on-prem CouchDB and the cloud.

Is Apache CouchDB or IBM Cloudant more popular?

Apache CouchDB ranks #41 on the WhichDB Score (43.6/100) and IBM Cloudant ranks #77 (31.6/100). Popularity is not fit: check the requirements that matter for your project.

Are Apache CouchDB and IBM Cloudant open source?

Yes. Apache CouchDB is open source. License: Apache License 2.0. No. IBM Cloudant is proprietary, closed-source software.