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Head-to-head · Document Databases

Couchbase Capella vs Amazon DocumentDB

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Couchbase Capella #5 in Document Databases 8.8/10 Free plan Free plan✓ 3 of 3 features Visit Couchbase
Amazon DocumentDB #9 in Document Databases 8.3/10 30-day trial Free trial✓ 3 of 3 features Visit DocumentDB

Couchbase Capella leads on 2 checks, Amazon DocumentDB on 0, and 3 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCouchbase Capella · 8.8/10
  • Free planonly Couchbase Capella
  • Free trialonly Amazon DocumentDB

Couchbase Capella scores higher on our rubric for document databases: 8.8 against 8.3 out of 10; our editors rank them #5 and #9.

Couchbase Capella offers free plan; Amazon DocumentDB doesn't. Couchbase Capella leads on maximum document size: 20 MB versus 16 MB.

Couchbase Capella is the better fit for managed JSON and key-value workloads. Amazon DocumentDB is the better fit for AWS-native managed MongoDB-compatible workloads.

  • Couchbase Capella fits best

    Managed JSON and key-value workloads

  • Amazon DocumentDB fits best

    AWS-native managed MongoDB-compatible workloads

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Side by side

Feature Couchbase Capella 8.8/10 Visit ↗ Amazon DocumentDB 8.3/10 Visit ↗
At a glance
Editor score 8.8 8.3
Ranking #5 in Document Databases #9 in Document Databases
Best for Managed JSON and key-value workloads AWS-native managed MongoDB-compatible workloads
Pricing model Free plan + paid Paid
Starting price $0.15/unit usage-based —
Free plan ✓ (best) —
Free trial — 30 days
Deployment Cloud Cloud
Platforms Web Web
Support Community, Tickets, Docs · 24/7 Docs
Compliance SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS
Integrations 10 integrations 7 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features Couchbase Capella 3/3 · Amazon DocumentDB 3/3
Managed cloud ✓ ✓
Transactions ✓ ✓
Vector search ✓ ✓
Specs
Deployment model Cloud Cloud
Document formats JSON, Binary, CSV, TSV, JSONL JSON, BSON
Maximum document size 20 MB (best) 16 MB
Our review
Pros
  • Free tier includes SQL++, search, RBAC, and 8 GB
  • Paid plans add backups, vector search, Analytics, and Eventing
  • App Services supports mobile and IoT synchronization
  • MongoDB API, driver, and tooling compatibility
  • Serverless scaling, provisioned instances, and automatic storage scaling
  • Multi-AZ replication, backups, transactions, and vector search
Cons
  • Paid pricing varies by provider, region, node size, and data transfer
  • Free tier is limited to one node and 8 GB
  • Advanced support and uptime commitments require paid tiers
  • Usage-based billing requires careful cost modeling
  • Cloud deployment limits it to AWS-managed environments
  • No open-source deployment option
Our verdict

Couchbase Capella is a fully managed, multicloud NoSQL database service for teams building and operating modern applications. It stores JSON documents, supports key-value access and SQL++ querying, and adds search, indexing, ACID…

Read the review →

Amazon DocumentDB is a fully managed cloud document database from AWS for applications built around MongoDB-compatible APIs, drivers, and tools. It supports JSON documents and workloads including content management, e-commerce, mobile and…

Read the review →
  1. Couchbase CapellaDocument Databases 8.8Free plan
  2. Amazon DocumentDBDocument Databases 8.330-day trial

Strengths and trade-offs

  • Couchbase Capella — where it wins

    • Free tier includes SQL++, search, RBAC, and 8 GB
    • Paid plans add backups, vector search, Analytics, and Eventing
    • App Services supports mobile and IoT synchronization

    Where it doesn't

    • Paid pricing varies by provider, region, node size, and data transfer
    • Free tier is limited to one node and 8 GB
    • Advanced support and uptime commitments require paid tiers

  • Amazon DocumentDB — where it wins

    • MongoDB API, driver, and tooling compatibility
    • Serverless scaling, provisioned instances, and automatic storage scaling
    • Multi-AZ replication, backups, transactions, and vector search

    Where it doesn't

    • Usage-based billing requires careful cost modeling
    • Cloud deployment limits it to AWS-managed environments
    • No open-source deployment option

More comparisons

All document databases comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update