Comparison
MongoDB vs Apache CouchDB
Overview
MongoDB is the leading document database, storing data as flexible JSON-like documents. Its schema-flexible model, rich query language and horizontal scaling make it popular for rapidly evolving applications, with a fully managed Atlas cloud service.
Apache CouchDB is an open-source document database that stores JSON documents and is accessed over HTTP. Its standout feature is reliable multi-master replication, making it well suited to offline-first and distributed applications that sync with clients like PouchDB.
Which should you choose?
MongoDB is the more widely-adopted document database, with a rich aggregation framework, horizontal sharding, and Atlas managed cloud including vector search. Apache CouchDB is fully open source with multi-master bidirectional replication and offline-first sync via PouchDB, built for eventually-consistent, distributed use cases. Choose MongoDB for the broadest ecosystem and managed cloud options; choose CouchDB if offline-first sync and multi-master replication are core requirements.
TLDR
- —If you want the broadest document-database ecosystem and managed cloud options, choose MongoDB.
- —If offline-first sync and multi-master replication are core requirements, choose CouchDB.
Features
- —Flexible JSON-like document model
- —Rich query and aggregation framework
- —Horizontal sharding
- —Replica sets for high availability
- —Atlas managed cloud with search and vector search
- —Broad driver and framework support
- —JSON documents over an HTTP API
- —Multi-master bidirectional replication
- —Offline-first sync (PouchDB)
- —MapReduce views
- —Mango declarative queries
- —Fault-tolerant, eventually consistent
Pricing
MongoDB
| Plan | Price | Notes |
|---|---|---|
| Community | Free | Self-hosted. |
| Atlas Free | Free | Free shared cluster. |
| Atlas Dedicated | Contact sales | Usage-based managed cloud. |
Apache CouchDB
| Plan | Price | Notes |
|---|---|---|
| Open Source | Free | Self-hosted Apache 2.0. |
Company Fit
MongoDB
Apache CouchDB
Alternatives
MongoDB alternatives