FREEDOM251

Freedom251 › Developer Tools

Free and open first

Best OLAP Databases in 2026

OLAP databases are designed for analytical querying, with different capabilities and deployment choices to consider across workloads. Compared on data lake querying, real-time ingestion, and query concurrency, these entries also vary in materialized views and whether compute and storage are separate. Deployment model helps frame where a system can run, while free-plan availability and paid-from pricing add cost considerations. CrateDB, Exasol, and QuestDB are among the options to assess. As you compare, consider the data sources and query patterns your work involves, along with the deployment approach that fits your environment.

  1. 1

    Apache Hive

    Free plan Open source APILinuxMac+2

    Apache Hive combines SQL data warehousing with metadata services, transaction support, and connections to multiple storage systems.

    9.2 Open source Visit site
  2. 2

    CrateDB

    by CrateDB
    Free plan Open source APILinuxMac+3
    9.0 Free plan Visit site
  3. 3

    PrestoDB

    Free plan Open source APILinuxMac+2

    PrestoDB is a free query engine for federating queries across heterogeneous sources, with deployment and security options documented.

    8.7 Open source Visit site
  4. 4

    ClickHouse Cloud

    by ClickHouse Cloud
    Free trial Open source APILinuxMac+3

    ClickHouse Cloud provides managed analytics infrastructure with cloud flexibility, ingestion tools, SQL access, and automated operations.

    7.9 From $50/mo · 30-day trial Visit site
  5. 5

    Apache Druid

    Free plan APILinuxMac+2

    Apache Druid is a self-hosted option for real-time analytics across streaming and batch data, with SQL access, a web console, and broad extension support.

    7.6 Open source Visit site
  6. 6

    Apache Impala

    Free plan APILinuxMac+1

    Apache Impala is a free analytic database for SQL queries across supported open data formats and Hadoop infrastructure.

    7.5 Free plan Visit site
  7. 7

    Apache Kylin

    Free plan APILinuxSelf-hosted+1

    Apache Kylin offers an OLAP engine with SQL modeling, streaming support, and connections to named BI tools. Its Linux-only support and deployment requirements are important considerations.

    7.5 Open source Visit site
  8. 8

    Apache Pinot

    by Apache Pinot
    Free plan APISelf-hostedWeb

    Apache Pinot combines multiple ingestion paths with SQL access, client libraries, BI connections, and security controls.

    7.3 Open source Visit site
  9. 9

    DuckDB UI

    Free plan ExtensionLinuxMac+3

    DuckDB UI provides notebook and data-exploration tools while keeping default queries local. Check the database and platform limitations before using it.

    7.3 Free plan Visit site
  10. 10

    Exasol

    by Exasol
    Free plan APILinuxMac+3

    Exasol offers analytics database options across managed and self-managed deployment models. Check data-source, user and storage limits alongside compute costs when assessing fit.

    7.3 Free plan · paid from $3.30 · 30-day trial Visit site
  11. 11

    Firebolt

    Free plan APILinuxSelf-hosted+1

    Firebolt offers both self-managed and managed deployment paths, plus a free self-hosted plan and a managed service with usage-based compute billing.

    7.3 Free plan Visit site
  12. 12

    Apache Doris

    Free plan APILinuxSelf-hosted

    Choose Apache Doris if you need an open-source analytical database for real-time analytics, lakehouse querying, or AI workloads, with SQL, search, and detailed access controls.

    7.2 Free plan Visit site
  13. 13

    Greenplum Database

    Free plan APILinuxSelf-hosted

    Greenplum combines PostgreSQL-based warehousing with distributed processing and external data access.

    7.1 Pricing on request Visit site
  14. 14

    MonetDB

    Free plan APILinuxMac+2

    MonetDB offers a broad SQL interface and analytical design at no listed charge.

    7.1 Free plan Visit site
  15. 15

    QuestDB

    by QuestDB
    Free plan APILinuxMac+3
    7.0 Free plan Visit site
  16. 16

    Teradata VantageCloud

    by Teradata VantageCloud
    Free plan APILinuxSelf-hosted+1
    7.0 Free plan · pricing on request Visit site
  17. 17

    Snowflake Horizon Catalog

    Free plan APISelf-hostedWeb

    Choose Snowflake Horizon Catalog if your organization needs a web-based governance service with tiered compute, privacy, continuity, and environment-isolation capabilities.

    6.9 30-day trial Visit site
  18. 18

    Trino

    Free plan APILinuxSelf-hosted+1

    Trino is aimed at federated SQL analytics across data systems, with deployment choices for cloud and on-premises environments.

    6.9 Free plan Visit site
  19. 19

    StarRocks

    Free plan LinuxSelf-hosted

    Choose StarRocks if you need a free, self-hosted SQL analytics database with real-time ingestion, broad data-source coverage, and configurable deployment.

    6.7 Free plan Visit site
  20. 20

    Amazon Redshift

    Free trial APIWeb

    Choose Amazon Redshift if you need cloud SQL analytics across warehouses and data lakes, with streaming ingestion and a broad set of listed BI and ETL integrations.

    6.2 From $0.54 Visit site
  21. 21

    Yellowbrick Data Warehouse

    Free trial APILinuxMac+3

    Choose Yellowbrick Data Warehouse if your organization needs a SQL analytics platform with flexible deployment, separate storage and compute, and controls for security or data residency.

    5.8 From $0.28 · 30-day trial Visit site
  22. 22

    Google BigQuery

    Free plan Web
    5.7 Free plan Visit site
  23. 23

    Alibaba Cloud AnalyticDB

    Paid Web

    Choose Alibaba Cloud AnalyticDB if its listed data lake, streaming, and in-database machine learning capabilities fit your analytics needs.

    4.9 From $119/mo Visit site
  24. 24

    Alibaba Cloud Hologres

    Paid Web

    Hologres combines data lake and streaming support with several billing structures. Pricing varies by region, and the listed plans include both hourly and prepaid options.

    4.8 Pricing on request Visit site
  25. 25

    Databricks SQL Warehouse

    Paid Web

    Databricks SQL Warehouse combines lakehouse data support with streaming ingestion and separate storage and compute.

    4.7 Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

More in Developer Tools