OpenPanel vs PostHog: which one to choose in 2026?
Both are open source alternatives to Mixpanel, Amplitude. We compare license, tech stack and features to help you decide which fits your team best.
| OpenPanel | PostHog | |
|---|---|---|
| Category | Web Analytics | Web Analytics |
| License | AGPL-3.0 | MIT |
| GitHub stars | 3k | 24k |
| Tech stack | Next.js, PostgreSQL, ClickHouse | Django, React, ClickHouse, PostgreSQL |
| Replaces | Mixpanel, Amplitude | Mixpanel, Amplitude |
PostHog has more GitHub stars, which usually indicates a larger community (not necessarily that it's the best option for your use case).
OpenPanel
Web + product analytics in a modern dashboard, an alternative to Mixpanel.
Pros
- Combines web and product analytics in a single tool
Things to consider
- Young project, still small community
PostHog
Product analytics + feature flags + A/B testing, all in one.
Pros
- Replaces several SaaS tools at once
Things to consider
- Large-scale self-hosted deployment needs more pieces (ClickHouse, Kafka)
Key features
OpenPanel
- Product events and funnels
- Unified user profiles
- Modern, fast dashboard
PostHog
- Session replay and heatmaps
- Feature flags and A/B experiments
- Funnels, retention and cohorts