Open source focus
Apache Cassandra is open source
Open Source Alternatives to Apache Cassandra
60 open source Database options similar to Apache Cassandra, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
ScyllaDB66DatabasePalo Alto, United States$101.0MOpen source · Self-hostable
- MOMongoDB70Big DataNew York, USA$1.5B
Open source
Apache CouchDB21DatabaseOpen source · Self-hostable
Starburst67AIBoston, United States$414.0MOpen source · Self-hostable
Responsive40EnterpriseSan Francisco, United StatesOpen source · Self-hostable
Databricks82Data AnalyticsSan Francisco, United States$31.7BOpen source · Self-hostable
pgEdge, Inc.58DatabaseSan Francisco, United States$24.0MOpen source · Self-hostable
Greenplum52Database$34.0MOpen source · Self-hostable
DBeaver52Database ManagementPrague, Czech Republic$6.0MOpen source · Self-hostable
Couchbase41DatabaseSan Jose, United States$39.0MOpen source
SkySQL30DatabaseRedwood City, United States$42.0MOpen source · Self-hostable
WekaIO70ComputingCampbell, United States$565.0MOpen source
YugabyteDB67DatabaseSunnyvale, United States$266.0MOpen source · Self-hostable
Firebolt65Cloud Data WarehousePalo Alto, United States$269.0MOpen source
Aerospike63DatabaseSunnyvale, United States$161.0MOpen source
DragonflyDB62DatabaseTel Aviv, Israel$21.0MOpen source · Self-hostable
Appwrite61EnterpriseSan Francisco, United States$37.0MOpen source · Self-hostable
MariaDB61DatabaseRedwood City, United States$131.0MOpen source · Self-hostable
InfluxData58DatabaseSan Francisco, United States$200.1MOpen source · Self-hostable
Treeverse57DataOpsTel Aviv, Israel$23.0MOpen source · Self-hostable
- TITigris Data55DatabasePalo Alto, United States$53.5M
Open source
OpenMeter54MLOpsTel Aviv, Israel$3.0MOpen source · Self-hostable
Speedb52EnterpriseTel Aviv, Israel$17.0MOpen source · Self-hostable
SingleStore50AI InfrastructureSan Francisco, United States$462.0MOpen source
Visual Layer50DatabaseTel Aviv, Israel$7.0MOpen source · Self-hostable
SereneDB49DatabaseSan Francisco, United States$3.8MOpen source · Self-hostable
Countly40AnalyticsLondon, United Kingdom$1.1MOpen source · Self-hostable
PostgreSQL40DatabaseSanta Barbara, USAOpen source · Self-hostable
timbr.ai39Knowledge GraphsTel Aviv, IsraelOpen source
Noobaa34Enterprise$5.0MOpen source · Self-hostable
PromptQL31Artificial IntelligenceSan Francisco, United StatesOpen source · Self-hostable
ChartDB26Software DevelopmentTel Aviv, IsraelOpen source · Self-hostable
Cloud Icecream15BlogOpen source · Self-hostable
Aemetis15Climate TechCupertino, United StatesOpen source · Self-hostable
Aiven for ClickHouse0DatabaseHelsinki, FinlandOpen source · Self-hostable
OpenStackCloud InfrastructureAustin, United StatesOpen source · Self-hostable
VAST Data85StorageNew York, United States$881.0MOpen source
Redis75DatabaseSan Francisco, United States$906.8MOpen source · Self-hostable
SUSE70Cloud ComputingLuxembourg City, Luxembourg$4.9BOpen source · Self-hostable
- Supabase70DatabaseSan Francisco, United States$933.0M
Open source · Self-hostable
ClickHouse Cloud69DatabaseSan Francisco, United States$1.1BOpen source · Self-hostable
Logz.io69EnterpriseTel Aviv, Israel$132.0MOpen source · Self-hostable
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
LogicGate Risk Cloud68GRCChicago, United States$269.0MOpen source
Codefresh61EnterpriseBrisbane, Australia$42.0MOpen source · Self-hostable
ClickHouse61DatabaseBerlin, Germany$350.0MOpen source · Self-hostable
StarTree, Inc.61Real-Time AnalyticsMountain View, United States$75.2MOpen source · Self-hostable
Instaclustr Managed ClickHouse60DatabaseWellington, New Zealand$1.0MOpen source · Self-hostable
Xata58DatabaseSan Francisco, United States$35.0MOpen source · Self-hostable
Baseten57MLOpsSan Francisco, United States$2.3BOpen source
GridGain Systems57Data ManagementFoster City, United States$15.0MOpen source
Vanna AI56Agentic AINew York, United States$2.5MOpen source · Self-hostable
CloudQuery56EnterpriseSan Francisco, United States$18.5MOpen source · Self-hostable
OpenOps55EnterpriseSan Francisco, United States$125KOpen source · Self-hostable
FalkorDB55EnterpriseTel Aviv, Israel$3.0MOpen source
Oxide Computer55EnterpriseSan Francisco, United States$200.0MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Ariga54EnterpriseTel Aviv, Israel$30.0MOpen source · Self-hostable
MemVerge54MemorySan Jose, United States$43.5MOpen source
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| ScyllaDB | Database | Open source · Self-hostable | Palo Alto, United States | $101.0M | 66 |
| MOMongoDB | Big Data | Open source | New York, USA | $1.5B | 70 |
| Apache CouchDB | Database | Open source · Self-hostable | — | — | 21 |
| Starburst | AI | Open source · Self-hostable | Boston, United States | $414.0M | 67 |
| Responsive | Enterprise | Open source · Self-hostable | San Francisco, United States | — | 40 |
| Databricks | Data Analytics | Open source · Self-hostable | San Francisco, United States | $31.7B | 82 |
| pgEdge, Inc. | Database | Open source · Self-hostable | San Francisco, United States | $24.0M | 58 |
| Greenplum | Database | Open source · Self-hostable | — | $34.0M | 52 |
| DBeaver | Database Management | Open source · Self-hostable | Prague, Czech Republic | $6.0M | 52 |
| Couchbase | Database | Open source | San Jose, United States | $39.0M | 41 |
| SkySQL | Database | Open source · Self-hostable | Redwood City, United States | $42.0M | 30 |
| WekaIO | Computing | Open source | Campbell, United States | $565.0M | 70 |
| YugabyteDB | Database | Open source · Self-hostable | Sunnyvale, United States | $266.0M | 67 |
| Firebolt | Cloud Data Warehouse | Open source | Palo Alto, United States | $269.0M | 65 |
| Aerospike | Database | Open source | Sunnyvale, United States | $161.0M | 63 |
| DragonflyDB | Database | Open source · Self-hostable | Tel Aviv, Israel | $21.0M | 62 |
| Appwrite | Enterprise | Open source · Self-hostable | San Francisco, United States | $37.0M | 61 |
| MariaDB | Database | Open source · Self-hostable | Redwood City, United States | $131.0M | 61 |
| InfluxData | Database | Open source · Self-hostable | San Francisco, United States | $200.1M | 58 |
| Treeverse | DataOps | Open source · Self-hostable | Tel Aviv, Israel | $23.0M | 57 |
| TITigris Data | Database | Open source | Palo Alto, United States | $53.5M | 55 |
| OpenMeter | MLOps | Open source · Self-hostable | Tel Aviv, Israel | $3.0M | 54 |
| Speedb | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $17.0M | 52 |
| SingleStore | AI Infrastructure | Open source | San Francisco, United States | $462.0M | 50 |
| Visual Layer | Database | Open source · Self-hostable | Tel Aviv, Israel | $7.0M | 50 |
| SereneDB | Database | Open source · Self-hostable | San Francisco, United States | $3.8M | 49 |
| Countly | Analytics | Open source · Self-hostable | London, United Kingdom | $1.1M | 40 |
| PostgreSQL | Database | Open source · Self-hostable | Santa Barbara, USA | — | 40 |
| timbr.ai | Knowledge Graphs | Open source | Tel Aviv, Israel | — | 39 |
| Noobaa | Enterprise | Open source · Self-hostable | — | $5.0M | 34 |
| PromptQL | Artificial Intelligence | Open source · Self-hostable | San Francisco, United States | — | 31 |
| ChartDB | Software Development | Open source · Self-hostable | Tel Aviv, Israel | — | 26 |
| Cloud Icecream | Blog | Open source · Self-hostable | — | — | 15 |
| Aemetis | Climate Tech | Open source · Self-hostable | Cupertino, United States | — | 15 |
| Aiven for ClickHouse | Database | Open source · Self-hostable | Helsinki, Finland | — | 0 |
| OpenStack | Cloud Infrastructure | Open source · Self-hostable | Austin, United States | — | — |
| VAST Data | Storage | Open source | New York, United States | $881.0M | 85 |
| Redis | Database | Open source · Self-hostable | San Francisco, United States | $906.8M | 75 |
| SUSE | Cloud Computing | Open source · Self-hostable | Luxembourg City, Luxembourg | $4.9B | 70 |
| Database | Open source · Self-hostable | San Francisco, United States | $933.0M | 70 | |
| ClickHouse Cloud | Database | Open source · Self-hostable | San Francisco, United States | $1.1B | 69 |
| Logz.io | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $132.0M | 69 |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 |
| LogicGate Risk Cloud | GRC | Open source | Chicago, United States | $269.0M | 68 |
| Codefresh | Enterprise | Open source · Self-hostable | Brisbane, Australia | $42.0M | 61 |
| ClickHouse | Database | Open source · Self-hostable | Berlin, Germany | $350.0M | 61 |
| StarTree, Inc. | Real-Time Analytics | Open source · Self-hostable | Mountain View, United States | $75.2M | 61 |
| Instaclustr Managed ClickHouse | Database | Open source · Self-hostable | Wellington, New Zealand | $1.0M | 60 |
| Xata | Database | Open source · Self-hostable | San Francisco, United States | $35.0M | 58 |
| Baseten | MLOps | Open source | San Francisco, United States | $2.3B | 57 |
| GridGain Systems | Data Management | Open source | Foster City, United States | $15.0M | 57 |
| Vanna AI | Agentic AI | Open source · Self-hostable | New York, United States | $2.5M | 56 |
| CloudQuery | Enterprise | Open source · Self-hostable | San Francisco, United States | $18.5M | 56 |
| OpenOps | Enterprise | Open source · Self-hostable | San Francisco, United States | $125K | 55 |
| FalkorDB | Enterprise | Open source | Tel Aviv, Israel | $3.0M | 55 |
| Oxide Computer | Enterprise | Open source | San Francisco, United States | $200.0M | 55 |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 |
| Ariga | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $30.0M | 54 |
| MemVerge | Memory | Open source | San Jose, United States | $43.5M | 54 |
| KiloClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 54 |