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Best Open Source Product Analytics for SaaS 2026

SaaS founders need user-level analytics to understand retention, funnels, and growth. These open-source tools replace Mixpanel and Amplitude for free.

👤 For SaaS founders · 2-100 people
Top tools · Ranked by BizOps Score
#1 63
repowise
Codebase intelligence for AI-assisted engineering teams: code health scores, auto-generated docs, git analytic
Free to self-host ★ 2,097
#2 53
slothdb
An experimental embedded SQL engine in C++20. Query Parquet, CSV, JSON, Arrow, Avro, SQLite, and Excel files d
Free to self-host ★ 778
#3 51
open-dronelog
Drone Log analyzer: A high-performance universal dashboard application for organizing and analyzing DJI/Litchi
Free to self-host ★ 1,409
#4 31
agentlytics
Comprehensive analytics dashboard for AI coding agents — Cursor, Windsurf, Claude Code, VS Code Copilot, Zed,
Free to self-host ★ 519

How we rank: BizOps Score is a composite of 9 GitHub signals — stars, fork velocity, commit recency, issue response time, CI status, contributor count, PR merge rate, test coverage, and release cadence. Updated daily. Read full methodology →

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