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Open source Google Tag Manager alternatives: 1 app ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

1 of the 5 Google Tag Manager alternatives we track are open source. Matomo ranks highest, with facts last verified Nov 8, 2026.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1Matomo logoMatomoOpen source—YesWeb, Self-hosted, iOS +15 of 569.4
  1. Matomo logo

    1. MatomoTop pick

    Best for: Organisations that want GA-level depth with full data ownership

    Open sourceSelf-hostableWeb, Self-hosted, iOS, Android

    69.4

    score / 100

    Why switch from Google Tag Manager

    Its built-in open-source Tag Manager can be self-hosted, keeping tag data off Google.

    Pros

    • Free to self-host with full data ownership
    • No data sampling and unlimited retention
    • Very wide feature set, including ecommerce and funnels

    Cons

    • Interface feels dated and crowded
    • Self-hosting large sites needs tuning
    • Heatmaps, recordings and other extras are paid plugins
    Visit Matomo Details and reviews
    How this score is calculated
    Editorial fit ×0.352
    Reviews ×0.363
    Clicks (90 days) ×0.15100
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Matomo a good Google Tag Manager alternative?

    Verified facts

    5 of 5 verified
    Data sampling
    None
    Checked Nov 8, 2026matomo.org(opens source in a new tab)
    Cloud free trial
    Yes, no credit card
    Checked Nov 8, 2026matomo.org(opens source in a new tab)
    Report data retention
    Forever (Cloud)
    Checked Nov 8, 2026matomo.org(opens source in a new tab)
    Users
    1 million organisations
    Checked Nov 8, 2026matomo.org(opens source in a new tab)
    License
    GPL-3.0
    Checked Nov 8, 2026github.com(opens source in a new tab)