Azure Cosmos DB for NoSQL vs Couchbase Capella

Azure Cosmos DB for NoSQL9.2Visit Couchbase Capella8.8Visit

Higher score Azure Cosmos DB for NoSQL #2 in Document Databases 9.2/10 Free plan · 30-day trial Free planFree trial✓ 3 of 3 features Visit site

vs

Couchbase Capella #5 in Document Databases 8.8/10 Free plan Free plan✓ 3 of 3 features Visit Couchbase

• Azure Cosmos DB for NoSQL fits best

  Azure-native globally distributed applications

• Couchbase Capella fits best

  Managed JSON and key-value workloads

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Side by side

Feature	Azure Cosmos DB for NoSQL 9.2/10 Visit ↗	Couchbase Capella 8.8/10 Visit ↗
At a glance
Editor score	9.2	8.8
Ranking	#2 in Document Databases	#5 in Document Databases
Best for	Azure-native globally distributed applications	Managed JSON and key-value workloads
Pricing model	Free plan + paid	Free plan + paid
Starting price	—	$0.15/unit usage-based
Free plan	✓	✓
Free trial	30 days	—
Deployment	Cloud	Cloud
Platforms	Web	Web
Support	Docs	Community, Tickets, Docs · 24/7
Compliance	SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS	SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Azure Cosmos DB for NoSQL 3/3 · Couchbase Capella 3/3
Managed cloud	✓	✓
Transactions	✓	✓
Vector search	✓	✓
Specs
Deployment model	Cloud	Cloud
Document formats	JSON	JSON, Binary, CSV, TSV, JSONL
Maximum document size	2 MB	20 MB (best)
Our review
Pros	Global distribution with multi-region replication Free tier plus a 30-day trial Vector search, change feeds, and Azure integrations	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
Cons	Paid costs vary by region and configuration Transactions are limited to a logical partition Cloud-only and not open source	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
Our verdict	Azure Cosmos DB for NoSQL is a fully managed cloud database for applications that store and query schema-free JSON documents. It is aimed at Azure-native teams building SaaS platforms, IoT systems, real-time workloads, and AI applications.… Read the review →	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 →

Strengths and trade-offs

• Azure Cosmos DB for NoSQL — where it wins

  • Global distribution with multi-region replication
  • Free tier plus a 30-day trial
  • Vector search, change feeds, and Azure integrations

  Where it doesn't

  • Paid costs vary by region and configuration
  • Transactions are limited to a logical partition
  • Cloud-only and not open source

• 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

• Azure Cosmos DB for NoSQL9.2/10 · Free plan · 30-day trial

  A flexible Azure-native document database with global distribution and multiple throughput models.

  Visit siteFull verdict →
• Couchbase Capella8.8/10 · Free plan

  A flexible managed NoSQL service with a free tier and clear hourly upgrades.

  Visit CouchbaseFull verdict →