Grafana k6 vs PostHog

A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureGrafana k6PostHog
CategoryMonitoring & StatusWeb Analytics
LicenseAGPL-3.0MIT
LanguageGoPython
Setup difficultyMediumHard
Min. RAM256 MB4,096 MB
Deploymentdocker, binary, bare-metaldocker, kubernetes
GitHub stars★ 31,211★ 37,548
First released20172020
ReplacesLoadRunner, BlazeMeterGoogle Analytics, Mixpanel, Amplitude

Why pick each one

Choose Grafana k6 if…

  • Developer-friendly scripting
  • Great CI integration
Grafana k6 details

Choose PostHog if…

  • Comprehensive product suite
  • Session replay included
  • Open-core model
PostHog details

Frequently asked questions

Is Grafana k6 or PostHog better?

Neither is universally better. PostHog has the larger community, while Grafana k6 is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.

Are Grafana k6 and PostHog free and open-source?

Yes. Grafana k6 is licensed under AGPL-3.0 and PostHog under MIT. Both can be self-hosted at no software cost.

Can I run Grafana k6 and PostHog with Docker?

Grafana k6: yes. PostHog: yes.

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