Instead of Hotjar

Heatmaps, session recordings and on-site surveys.

Partly

PostHog does the product analytics and the recordings. It is also a platform you will spend a day reading about before you turn anything on.

You lose: Session replay without thinking about storage, and the survey widgets.

Start here

PostHog

MIT (open core)a projectactive

Enormous surface. Self-hosting is supported and resource-hungry.

github.com/PostHog/posthog posthog.com

A cluster, mail deliverability, telephony, or a team.

Also worth a look

OpenReplayAGPL-3.0a weekendactive
Session replay that actually works. Analytics is not its strength.
github.com/openreplay/openreplay openreplay.com
UmamiMITa containeractive
Counts and referrers. No heatmaps, no recordings.
github.com/umami-software/umami umami.is

Facts checked 8 November 2026. Licences, activity and archive status come from each project's own repository; the verdict and the cost lines are the desk's.