Simple and privacy-first
Umami and Plausible are lightweight, cookie-free analytics with small scripts. Plausible is AGPL-3.0 with a free Community Edition and a paid hosted service, and Umami is MIT. HitKeep ships as a single binary with embedded DuckDB, but it is very young.
Product analytics and replay
PostHog is a full product analytics suite with experiments and feature flags. OpenPanel, Rybbit, Swetrix, Vemetric, and Betterlytics add funnels, retention, or session replay. Matomo is the most comprehensive web analytics suite, with heatmaps and recordings.
Smaller and older tools
Open Web Analytics is an older GPL-2.0 platform with heatmaps and WordPress integration. Databuddy and Litlyx are cookie-free analytics, Litlyx adding an AI chat over data. Prisme Analytics is a Go service with low recent activity.
Important: open core and maintenance
PostHog's code is MIT with enterprise directories. Litlyx's last commit was in December 2025, and Prisme Analytics' in February 2026. Betterlytics, HitKeep, Databuddy, and Vemetric are young projects with few stars.
License details
Umami, PostHog, and HitKeep are MIT. Plausible, OpenPanel, Rybbit, Swetrix, Vemetric, Databuddy, Betterlytics, and Prisme are AGPL-3.0. Matomo is GPL-3.0, Open Web Analytics is GPL-2.0, and Litlyx is Apache-2.0.
Maintenance status
Most had commits within days of this update.