PostHog

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PostHog is an all-in-one, open source platform for building successful products

PostHog provides every tool you need to build a successful product including:

Product Analytics: Autocapture or manually instrument event-based analytics to understand user behavior and analyze data with visualization or SQL.
Web Analytics: Monitor web traffic and user sessions with a GA-like dashboard. Easily monitor conversion, web vitals, and revenue.
Session Replays: Watch real user sessions of interactions with your website or mobile app to diagnose issues and understand user behavior.
Feature Flags: Safely roll out features to select users or cohorts with feature flags.
Experiments: Test changes and measure their statistical impact on goal metrics. Set up experiments with no-code too.
Error Tracking: Track errors, get alerts, and resolve issues to improve your product.
Surveys: Ask anything with our collection of no-code survey templates, or build custom surveys with our survey builder.
Data warehouse: Sync data from external tools like Stripe, Hubspot, your data warehouse, and more. Query it alongside your product data.
Data pipelines: Run custom filters and transformations on your incoming data. Send it to 25+ tools or any webhook in real time or batch export large amounts to your warehouse.
LLM analytics: Capture traces, generations, latency, and cost for your LLM-powered app.
Workflows: Create workflows that automate actions or send messages to your users.

Best of all, all of this is free to use with a generous monthly free tier for each product. Get started by signing up for PostHog Cloud US or PostHog Cloud EU.