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Open-source alternatives to Fathom

Fathom Analytics is a privacy-focused web analytics SaaS that collects visitor data without cookies or personal data, making it GDPR compliant by design. It provides page views, referrers, devices, and conversion goals in a simple dashboard without the data volume or complexity of Google Analytics. Used primarily by privacy-conscious indie developers, bloggers, and small businesses.

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The alternatives

umami

★ 36,502 TypeScript MIT

Umami is a modern, privacy-focused analytics platform. An open-source alternative to Google Analytics, Mixpanel and Amplitude.

umami-software/umami Updated 2026-05-06

analytics

★ 24,758 Elixir AGPL-3.0

Open source, privacy-first web analytics. Lightweight, cookie-free Google Analytics alternative. Self-hosted or cloud.

plausible/analytics Updated 2026-05-05

Comparison notes

Umami and Plausible Analytics (Plausible is the matching OSS tool for analytics.elixir) are the primary self-hosted OSS alternatives, both privacy-first and cookieless. Umami is MIT licensed; Plausible's self-hosted version is AGPL. They cover most Fathom use cases including custom events, goals, and filtering. The main gap: Fathom's EU isolation option (EU-only servers for data residency compliance) is easier to implement as a managed service than self-hosted; you control your own data residency with self-hosting but take on the compliance documentation burden.

Migration tips

  • Export your Fathom site statistics as CSV from the dashboard before closing the account
  • Install Umami or Plausible on your server, then swap the tracking script tag in your site's HTML
  • Recreate custom events and goals in your OSS tool — Fathom event names do not auto-migrate
  • Test the new tracking script on a staging environment before cutting over production
  • Inform stakeholders that historical comparison data will start fresh — historical Fathom data cannot be imported into OSS alternatives

FAQ

Can I fully replace Fathom with an OSS tool?

Feature parity varies. Most OSS alternatives cover 70-90% of core workflows, but may lack polish, integrations, or specialized features. Pilot the alternative with a subset of your team before fully committing.

What's the cost of self-hosting?

Plan for ~$5-50/month in VPS costs (DigitalOcean, Hetzner, etc.) plus 2-8 hours/month in maintenance. For a team of 20+, self-hosting usually breaks even against SaaS pricing within 6-12 months.

Which alternative should I pick?

Sort by GitHub stars (a proxy for community health), check the last-pushed date (avoid unmaintained projects), and read recent issues to gauge responsiveness.