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Top Open Source Cloud Data Warehouses Tools in 2026

A curated collection of the 4 best free and open-source Cloud Data Warehouses tools in 2026. Compare features, GitHub stars, tech stacks, and self-hosted software.

  • Apache Pinot

    Open-source OLAP database for real-time analytics

    Stars
    6,128
    Last commit
    10d ago
    License
    Apache-2.0

  • Databend

    Databend is an open-source, elastic cloud data warehouse built for high-performance analytics and seamless integration with popular data tools.

    Stars
    9,424
    Last commit
    10d ago
    License
    Open Source

  • Apache Cloudberry

    Open-source MPP database built on PostgreSQL

    Stars
    1,374
    Last commit
    10d ago
    License
    Apache-2.0

  • ClickHouse

    Fast open-source OLAP database for real-time analytics

    Stars
    49,481
    Last commit
    10d ago
    License
    Apache-2.0
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Showing 4 of 4 open-source tools