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Head-to-head · NoSQL Databases

Azure Cosmos DB for NoSQL vs Apache Cassandra

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Azure Cosmos DB for NoSQL #4 in NoSQL Databases 9.1/10 Free plan · 30-day trial Free planFree trial✓ 0 of 2 features Visit Azure
Apache Cassandra #6 in NoSQL Databases 9.0/10 Open source ✓ 1 of 2 features Try Apache Cassandra

Azure Cosmos DB for NoSQL leads on 0 checks, Apache Cassandra on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAzure Cosmos DB for NoSQL · 9.1/10
  • Free planonly Azure Cosmos DB for NoSQL
  • Free trialonly Azure Cosmos DB for NoSQL
  • Most featuresApache Cassandra · 1 of 2

Azure Cosmos DB for NoSQL scores higher on our rubric for nosql databases: 9.1 against 9.0 out of 10; our editors rank them #4 and #6.

Azure Cosmos DB for NoSQL is the better fit for azure teams needing globally distributed JSON storage. Apache Cassandra is the better fit for teams running self-hosted wide-column workloads.

  • Azure Cosmos DB for NoSQL fits best

    Azure teams needing globally distributed JSON storage

  • Apache Cassandra fits best

    Teams running self-hosted wide-column workloads

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Side by side

Feature Azure Cosmos DB for NoSQL 9.1/10 Visit ↗ Apache Cassandra 9.0/10 Visit ↗
At a glance
Editor score 9.1 9.0
Ranking #4 in NoSQL Databases #6 in NoSQL Databases
Best for Azure teams needing globally distributed JSON storage Teams running self-hosted wide-column workloads
Pricing model Free plan + paid Free
Starting price — Open source
Free plan ✓ (best) Not checked yet
Free trial 30 days —
Deployment Cloud Self-hosted, Desktop
Platforms Web Web, Windows, macOS, Linux
Support Docs Community, Docs
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Azure Cosmos DB for NoSQL 0/2 · Apache Cassandra 1/2
Horizontal scaling Not checked yet ✓ (best)
Replication Not checked yet Not checked yet
Specs
Data model Not checked yet Not checked yet
Deployment options Not checked yet Not checked yet
Max storage Not checked yet Not checked yet
Query interface Not checked yet Not checked yet
Our review
Pros
  • Automatic indexing and SQL-like queries for schema-free JSON documents
  • ACID transactions within a logical partition, plus integrated vector search
  • Provisioned, autoscale, and serverless throughput options
  • CQL provides an SQL-like interface for querying wide-column data
  • Replicates across datacenters with tunable consistency levels
  • Scales horizontally by adding nodes
Cons
  • Global distribution and throughput choices can make configuration complex
  • Free tier is limited to one account per Azure subscription
  • NoSQL items are limited to 2 MB
  • Self-managed deployment puts operations on the team
  • No vendor-hosted service is part of the offering
  • Community and documentation are the listed support channels
Our verdict

Azure Cosmos DB for NoSQL is a fully managed cloud document database for developers building applications around flexible JSON data. It suits Azure teams that need global distribution, low-latency access, or elastic capacity for SaaS,…

Read the review →

Apache Cassandra is an open-source, distributed NoSQL database built around a partitioned wide-column data model. It suits teams handling large datasets and high-volume reads and writes that need high availability and fault tolerance. Its…

Read the review →
  1. Azure Cosmos DB for NoSQLNoSQL Databases 9.1Free plan · 30-day trial
  2. Apache CassandraNoSQL Databases 9.0Open source

Strengths and trade-offs

  • Azure Cosmos DB for NoSQL — where it wins

    • Automatic indexing and SQL-like queries for schema-free JSON documents
    • ACID transactions within a logical partition, plus integrated vector search
    • Provisioned, autoscale, and serverless throughput options

    Where it doesn't

    • Global distribution and throughput choices can make configuration complex
    • Free tier is limited to one account per Azure subscription
    • NoSQL items are limited to 2 MB

  • Apache Cassandra — where it wins

    • CQL provides an SQL-like interface for querying wide-column data
    • Replicates across datacenters with tunable consistency levels
    • Scales horizontally by adding nodes

    Where it doesn't

    • Self-managed deployment puts operations on the team
    • No vendor-hosted service is part of the offering
    • Community and documentation are the listed support channels
  • Azure Cosmos DB for NoSQL9.1/10 · Free plan · 30-day trial

    A managed Azure document database for JSON workloads that need global distribution and flexible capacity.

    Visit AzureFull verdict →
  • Apache Cassandra9.0/10 · Open source

    A self-hosted wide-column database built for distributed data and tunable consistency.

    Try Apache CassandraFull verdict →

More comparisons

All NoSQL databases comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update