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Top Open Source Data Platforms for AI Tools in 2026

A curated collection of the 5 best free and open-source Data Platforms for AI tools in 2026. Compare features, GitHub stars, tech stacks, and self-hosted software.

  • Open Wearables

    Open-source health intelligence platform for wearable data

    Stars
    2,408
    Last commit
    10d ago
    License
    MIT

  • Weaviate

    Open-source vector database for AI-native apps

    Stars
    16,754
    Last commit
    10d ago
    License
    BSD-3-Clause

  • Open-Notebook

    Privacy-first AI-powered note-taking platform

    Stars
    37,723
    Last commit
    1mo ago
    License
    MIT

  • Deepnote

    Collaborative data science notebook for teams

    Stars
    2,998
    Last commit
    11d ago
    License
    Apache-2.0

  • Airbyte

    Open-source data integration for AI agents

    Stars
    21,963
    Last commit
    11d ago
    License
    Open Source
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Showing 5 of 5 open-source tools