Offen Fair Web Analytics vs PostHog
A side-by-side comparison of two self-hosted web analytics options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Offen Fair Web Analytics | PostHog |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 46 · Fair | 99 · Excellent |
| Category | Web Analytics | Web Analytics |
| License | Apache-2.0 | MIT |
| Language | JavaScript | Python |
| Setup difficulty | Medium | Hard |
| Min. RAM | 256 MB | 4,096 MB |
| Deployment | docker, binary | docker, kubernetes |
| GitHub stars | ★ 981 | ★ 39,909 |
| First released | 2019 | 2020 |
| Replaces | Google Analytics | Google Analytics, Mixpanel, Amplitude |
What are Offen Fair Web Analytics and PostHog?
Offen Fair Web Analytics
Offen Fair Web Analytics is a privacy-focused analytics tool that gives website operators insights while letting visitors see and delete their own data. It is transparent and consent-based.
- Visitor data transparency
- End-to-end encrypted data
- Consent-based tracking
- Users can delete their data
PostHog
PostHog is an open-source product analytics platform with event tracking, session replay, feature flags, and A/B testing. It targets product teams wanting an all-in-one analytics suite. It is deployed via Docker or Kubernetes.
- Product analytics and funnels
- Session replay
- Feature flags and experiments
- Self-hostable all-in-one
Offen Fair Web Analytics vs PostHog: key differences
Offen Fair Web Analytics is written in JavaScript, while PostHog is built with Python. Licensing differs — Apache-2.0 for Offen Fair Web Analytics versus MIT for PostHog. Offen Fair Web Analytics is the lighter option, starting around 256 MB of RAM against 4,096 MB for PostHog. PostHog has the considerably larger community, at 39,909 GitHub stars versus 981.
Why pick each one
Choose Offen Fair Web Analytics if…
- Exceptionally privacy-respecting
- Builds visitor trust
Watch out for
- Less mainstream
- Consent UI changes metrics
Choose PostHog if…
- Comprehensive product suite
- Session replay included
- Open-core model
Watch out for
- Heavy to self-host
- Self-host edition is scaled down
Frequently asked questions
Is Offen Fair Web Analytics or PostHog better?
Neither is universally better. PostHog has the larger community, while Offen Fair Web Analytics is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Offen Fair Web Analytics and PostHog free and open-source?
Yes. Offen Fair Web Analytics is licensed under Apache-2.0 and PostHog under MIT. Both can be self-hosted at no software cost.
Can I run Offen Fair Web Analytics and PostHog with Docker?
Offen Fair Web Analytics: yes. PostHog: yes.
Which is lighter on resources, Offen Fair Web Analytics or PostHog?
Offen Fair Web Analytics has the smaller minimum footprint at 256 MB of RAM, compared to about 4,096 MB for PostHog. Real-world usage depends on library size, user count, and enabled features.
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