Matomo

• CategoryOpen-source / self-host
• PricingOpen source
• Starts atFree (self-host)
• LicenseGPL-3.0
• Created2007
• GitHub stars19k
• Script size~22KB
• CookielessNo
• Self-hostYes

Matomo (formerly Piwik) is the original open-source GA alternative, running since 2007. Feature-parity with GA4, events, goals, ecommerce, funnels, A/B test integration. PHP / MySQL stack, heavy by modern standards but battle-tested. GDPR-compliant out of the box; widely used by EU government and enterprise.

• Enterprises requiring full GA-replacement feature parity with self-hosting
• EU government and regulated industries with strict data sovereignty
• Sites that need ecommerce / funnel analytics and refuse to use GA4

Skip Matomo if you want a lightweight modern stack, the PHP / MySQL infrastructure is heavy. Skip if you only need basic web analytics; Plausible / Umami are easier.

Matomo is the right pick when you genuinely need GA4 feature-parity without GA4. For typical content sites and SaaS, it is overkill, Plausible / Umami win on simplicity. For regulated EU enterprise, Matomo is often the only acceptable answer.

Matomo has been shipping since 2007 and it shows in both directions. The feature list genuinely rivals GA4: goals, ecommerce revenue attribution, funnels, segments, custom dimensions, multi-site rollups, user flow, plus a plugin marketplace for the rest. Very little a marketing team asks for is missing. The cost is the stack. It is PHP and MySQL, it wants cron for report archiving, and at real traffic that archiving job becomes something you tune rather than something you forget. Nobody deploys Matomo in ten minutes and walks away. If you are staffed to run a PHP application, that is fine, and plenty of European public-sector deployments prove it works at scale. If running a server is not on the table at all, Matomo Cloud is the paid hosted version of the same product.

Matomo is not cookieless by default, which surprises people who file it under privacy-first. It uses first-party cookies to recognise returning visitors, and that is what makes repeat-visit and duration metrics work properly. You can switch to a cookieless configuration and shorten data retention, and many EU deployments do exactly that to avoid a consent gate, at the cost of accuracy on returning users. The reason regulators tend to be comfortable with self-hosted Matomo is not that it collects less than GA4. It is that the data never leaves your infrastructure and no third-party processor is involved. That is a different argument from the one Plausible makes, and it is the stronger one when your compliance team cares about data sovereignty rather than data minimisation.

• Official homepage →
• GitHub repo →

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