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Top Open Source Marketing & Customer Engagement Tools in 2026

A curated collection of the 6 best free and open-source Marketing & Customer Engagement tools in 2026. Compare features, GitHub stars, tech stacks, and self-hosted software.

  • Usertour

    Open-source user onboarding platform

    Stars
    2,292
    Last commit
    10d ago
    License
    Open Source

  • Mimrai

    Full-stack engineering & applied AI for rapid product delivery

    Stars
    26
    Last commit
    5mo ago
    License
    AGPL-3.0

  • FleetBase

    Modular logistics and supply chain OS

    Stars
    2,533
    Last commit
    18d ago
    License
    AGPL-3.0

  • Solidus

    Open source eCommerce platform for unique brands

    Stars
    5,322
    Last commit
    10d ago
    License
    Open Source

  • Pixelfed

    Decentralized photo sharing platform

    Stars
    7,072
    Last commit
    11d ago
    License
    AGPL-3.0

  • WooCommerce

    Open-source ecommerce platform for WordPress

    Stars
    10,476
    Last commit
    10d ago
    License
    Open Source
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Showing 6 of 6 open-source tools