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Apache Cassandra alternatives: 6 apps ranked by verified data

Facts checked Nov 1, 2026AppBreakup editorialHow we rank

Common reasons people leave Apache Cassandra: no joins; tables must be designed around specific queries, and running and repairing a cluster needs dedicated operations skill. We ranked 6 alternatives by how directly each one replaces Apache Cassandra, then by reviews, real visits and how recently each app's facts were checked against its own website. ScyllaDB currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1ScyllaDB logoScyllaDBFree plan + paidNoWeb, Linux, Self-hosted5 of 566.5
2Amazon DynamoDB logoAmazon DynamoDBFree plan + paidNoWeb7 of 764.8
3Azure Cosmos DB logoAzure Cosmos DBFree plan + paidNoWeb8 of 861.8
4MongoDB Atlas logoMongoDB AtlasFree plan + paidNoWeb7 of 759.4
5Aiven logoAivenFree plan + paidNoWeb3 of 355.9
  1. ScyllaDB logo

    1. ScyllaDBTop pick

    Best for: Teams running Cassandra or DynamoDB workloads who want lower latency and fewer servers

    Free plan + paidSelf-hostableWeb, Linux, Self-hosted

    66.5

    score / 100

    Why switch from Apache Cassandra

    Speaks the same CQL protocol and drivers, so Cassandra apps can move over with little code change and fewer nodes.

    Pros

    • Drop-in CQL and DynamoDB API compatibility
    • Fewer nodes needed for the same load, per vendor benchmarks
    • Managed cloud option on AWS and Google Cloud
    • Free self-managed tier for smaller clusters

    Cons

    • Source-available licence, no longer open source
    • Free self-managed use is capped by storage and vCPUs
    • Same query-first data modelling limits as Cassandra
    Visit ScyllaDB Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is ScyllaDB a good Apache Cassandra alternative?

    Verified facts

    5 of 5 verified
    API compatibility
    Cassandra CQL and DynamoDB
    Checked Oct 30, 2026scylladb.com(opens source in a new tab)
    License
    Source available
    Checked Oct 30, 2026scylladb.com(opens source in a new tab)
    Free self-managed tier
    Up to 10 TB and 50 vCPUs
    Checked Oct 30, 2026scylladb.com(opens source in a new tab)
    Free trial
    30 days (Developer trial)
    Checked Oct 30, 2026scylladb.com(opens source in a new tab)
    Managed cloud
    AWS and Google Cloud
    Checked Oct 30, 2026scylladb.com(opens source in a new tab)
  2. Amazon DynamoDB logo

    2. Amazon DynamoDB

    Best for: AWS-based teams building serverless apps that need predictable performance at scale

    Free plan + paidWeb

    64.8

    score / 100

    Why switch from Apache Cassandra

    Fully managed wide-column style store on AWS, so there are no clusters, repairs or compaction to run yourself.

    Pros

    • Serverless scaling without capacity planning on on-demand mode
    • Multi-region global tables and point-in-time recovery
    • Integrates tightly with Lambda and other AWS services

    Cons

    • Data model must be designed around access patterns in advance
    • Limited ad-hoc querying compared with SQL
    • Only available on AWS
    Visit Amazon DynamoDB Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Amazon DynamoDB a good Apache Cassandra alternative?

    Verified facts

    7 of 7 verified
    Pricing options
    On-demand and provisioned
    Checked Oct 29, 2026aws.amazon.com(opens source in a new tab)
    Free tier
    Yes
    Checked Oct 29, 2026aws.amazon.com(opens source in a new tab)
    Database type
    NoSQL key-value
    Checked Oct 29, 2026aws.amazon.com(opens source in a new tab)
    On-demand writes
    $0.625 per million write request units (US East example)
    Checked Nov 1, 2026aws.amazon.com(opens source in a new tab)
    Storage
    $0.25 per GB-month (US East example)
    Checked Nov 1, 2026aws.amazon.com(opens source in a new tab)
    Free plan
    Yes, 25 GB storage, 25 WCUs and 25 RCUs a month
    Checked Nov 1, 2026aws.amazon.com(opens source in a new tab)
    New-customer credits
    Up to $200 in AWS Free Tier credits
    Checked Nov 1, 2026aws.amazon.com(opens source in a new tab)
  3. Azure Cosmos DB logo

    3. Azure Cosmos DB

    Best for: Azure-based teams that need a globally replicated NoSQL or vector database

    Free plan + paidWeb

    61.8

    score / 100

    Why switch from Apache Cassandra

    Managed multi-region database on Azure that offers a Cassandra-compatible API alongside other data models.

    Pros

    • Global replication with tunable consistency
    • MongoDB and Cassandra-compatible APIs ease migrations
    • Serverless mode for spiky workloads

    Cons

    • Request-unit pricing is hard to predict
    • Costs grow quickly with multi-region writes
    • Only available on Azure
    Visit Azure Cosmos DB Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Azure Cosmos DB a good Apache Cassandra alternative?

    Verified facts

    8 of 8 verified
    Database type
    Serverless NoSQL and vector database
    Checked Oct 29, 2026azure.microsoft.com(opens source in a new tab)
    Vector search
    Built in
    Checked Oct 29, 2026azure.microsoft.com(opens source in a new tab)
    Free tier
    First 1000 RU/s and 25 GB
    Checked Oct 29, 2026learn.microsoft.com(opens source in a new tab)
    APIs
    NoSQL, MongoDB, Cassandra, Gremlin, Table
    Checked Oct 29, 2026learn.microsoft.com(opens source in a new tab)
    Free plan
    Yes, 1,000 RU/s and 25 GB storage a month
    Checked Nov 1, 2026azure.microsoft.com(opens source in a new tab)
    Free trial
    30 days, no Azure subscription needed
    Checked Nov 1, 2026azure.microsoft.com(opens source in a new tab)
    New Azure account credit
    $200 credit for 30 days
    Checked Nov 1, 2026azure.microsoft.com(opens source in a new tab)
    Data transfer out
    $0.05 per GB from Europe or North America
    Checked Nov 1, 2026azure.microsoft.com(opens source in a new tab)
  4. MongoDB Atlas logo

    4. MongoDB Atlas

    Best for: Teams building on MongoDB who want it managed on their preferred cloud

    Free plan + paidWeb

    59.4

    score / 100

    Why switch from Apache Cassandra

    Managed document database with flexible queries and secondary indexes, easier when access patterns change often.

    Pros

    • Run by the MongoDB company on AWS, Google Cloud or Azure
    • Built-in full-text and vector search
    • Free cluster for learning and prototypes

    Cons

    • Dedicated clusters get expensive as data grows
    • Database only, with no end-user auth or storage layer
    • Document modelling can be awkward for heavily relational data
    Visit MongoDB Atlas Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is MongoDB Atlas a good Apache Cassandra alternative?

    Verified facts

    7 of 7 verified
    Free cluster
    512MB storage, free forever
    Checked Oct 29, 2026mongodb.com(opens source in a new tab)
    Flex cluster
    Up to $30/month
    Checked Oct 29, 2026mongodb.com(opens source in a new tab)
    Dedicated cluster
    From $56.94/month
    Checked Oct 29, 2026mongodb.com(opens source in a new tab)
    Search
    Full-text and vector search built in
    Checked Oct 29, 2026mongodb.com(opens source in a new tab)
    Free plan
    Yes, 512MB storage
    Checked Nov 1, 2026mongodb.com(opens source in a new tab)
    Starting price
    $0.011/hour on Flex, up to $30 a month
    Checked Nov 1, 2026mongodb.com(opens source in a new tab)
    Dedicated plan
    From $56.94 a month ($0.08/hour)
    Checked Nov 1, 2026mongodb.com(opens source in a new tab)
  5. Aiven logo

    5. Aiven

    Best for: Teams that want managed open-source databases on the cloud and region of their choice

    Free plan + paidWeb

    55.9

    score / 100

    Why switch from Apache Cassandra

    Runs managed Apache Cassandra and other open-source databases for you, keeping the same engine without the ops work.

    Pros

    • Many open-source data services in one console
    • Runs on AWS, Google Cloud, Azure and others
    • Free tier for Postgres, MySQL and Valkey

    Cons

    • Free tier is a single small node with no integrations
    • Costs add up when running many services
    • No built-in backend features such as auth or APIs
    Visit Aiven Details and reviews
    How this score is calculated
    Editorial fit ×0.357
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Aiven a good Apache Cassandra alternative?

    Verified facts

    3 of 3 verified
    Free plan
    $0/month
    Checked Oct 29, 2026aiven.io(opens source in a new tab)
    Developer plan
    $5/month
    Checked Oct 29, 2026aiven.io(opens source in a new tab)
    Hobbyist plan
    From $12/month
    Checked Oct 29, 2026aiven.io(opens source in a new tab)

The best Apache Cassandra alternative for…

The highest-ranked app in this list for each need.

ScyllaDB logo

Best Apache Cassandra alternative for most people

ScyllaDB

Speaks the same CQL protocol and drivers, so Cassandra apps can move over with little code change and fewer nodes.

Amazon DynamoDB logo

Best Apache Cassandra alternative for a free plan you can upgrade

Amazon DynamoDB

Fully managed wide-column style store on AWS, so there are no clusters, repairs or compaction to run yourself.

CockroachDB logo

Best Apache Cassandra alternative for self-hosting

CockroachDB

Distributed SQL with multi-region replication, for teams that want Cassandra-like resilience plus joins and transactions.

ScyllaDB logo

Best Apache Cassandra alternative for Linux

ScyllaDB

Speaks the same CQL protocol and drivers, so Cassandra apps can move over with little code change and fewer nodes.

Azure Cosmos DB logo

Best Apache Cassandra alternative for working in the browser

Azure Cosmos DB

Managed multi-region database on Azure that offers a Cassandra-compatible API alongside other data models.

Apache Cassandra alternatives: common questions

What is the best alternative to Apache Cassandra?

ScyllaDB ranks first right now. Speaks the same CQL protocol and drivers, so Cassandra apps can move over with little code change and fewer nodes. Amazon DynamoDB and Azure Cosmos DB follow it in our ranking.

Is there a free alternative to Apache Cassandra?

Yes. ScyllaDB (free plan + paid), Amazon DynamoDB (free plan + paid), Azure Cosmos DB (free plan + paid) and MongoDB Atlas (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Apache Cassandra?

None of the 6 alternatives in this list is open source.

Which Apache Cassandra alternatives work on Linux?

ScyllaDB runs on Linux.

Why do people switch from Apache Cassandra?

The complaints we hear most: no joins; tables must be designed around specific queries; running and repairing a cluster needs dedicated operations skill; overkill for small apps that fit in one relational database.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Apache Cassandra, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.