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.

Not the right match-up?
FeatureOffen Fair Web AnalyticsPostHog
Deploy effortUnder-an-hour setupUnder-an-hour setup
Health score46 · Fair99 · Excellent
CategoryWeb AnalyticsWeb Analytics
LicenseApache-2.0MIT
LanguageJavaScriptPython
Setup difficultyMediumHard
Min. RAM256 MB4,096 MB
Deploymentdocker, binarydocker, kubernetes
GitHub stars★ 981★ 39,909
First released20192020
ReplacesGoogle AnalyticsGoogle 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

Read the full PostHog guide →

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
Offen Fair Web Analytics details

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
PostHog details

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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