Best alternatives to OpenPanel in 2026

Companies want to understand how people actually use their product — which features get used, where users drop off, whether a change increased revenue — without either building this from scratch or handing all their user data to a big analytics vendor. OpenPanel is a free, open tool that gives a team this kind of insight while keeping the data on infrastructure they control. OpenPanel is an open-source analytics platform that combines product analytics (in the style of Mixpanel), privacy-first web analytics (like Plausible) and traffic analysis (like Google Analytics) in one tool. Client SDKs and a server-side API send events into a real-time engine, which powers dashboards covering funnels, user cohorts, individual user profiles, session replay, retention curves (day 1/7/30), revenue and MRR tracking, and A/B testing. It supports GDPR-compliant cookieless tracking, exposes a REST API for raw data access, and — notably for 2026 — ships an MCP server so AI coding assistants like Claude, Cursor and Windsurf can query analytics data directly. The core is AGPL-3.0 and free to self-host with unlimited events; the hosted cloud starts around $20/month with a pay-per-event model beyond a free allotment.