What is fugu?

Fugu is a free, open-source product analytics platform designed for indie developers and small teams who want to understand user behavior without compromising privacy. It uses an event-based tracking system where you send events with optional properties via a REST API. The web dashboard provides event charts with time aggregation (day, week, month, year), property value breakdowns, funnel analysis with up to 5 steps, and test/live modes to separate staging from production data. Projects can be made public and embedded via iframe. Fugu deliberately does not track unique users or personally identifiable information like IP addresses. It runs as a Ruby on Rails application with a PostgreSQL database and can be deployed via Docker Compose, Docker alone, or managed services like Heroku and Render. The project is licensed under AGPL-3.0 and has no paid tiers or feature restrictions in the self-hosted version.

Should you self-host fugu?

fugu scores 46/100 on selfhost.directory (how scoring works) and ranks #16 of 27 in Analytics. It has 214 GitHub stars.

There was no stable release in the past 12 months, so check the repository's recent activity before you rely on it.

Setup is moderate: expect some configuration beyond a single command. An official Docker image is available. It is AGPL-3.0-licensed and written mostly in Ruby.

Its closest alternative on selfhost.directory is PostHog (81/100, 40 493 stars). It scores higher overall, so compare the two before you pick. See fugu vs PostHog side by side.