Formbricks vs PostHog

Formbricks (Open Source Qualtrics Alternative) and PostHog (The single platform to analyze, test, observe, and deploy new features) both appear on the Smoower Developer Ecosystem Index.

PostHog (rank #30) holds a modest lead over Formbricks (rank #237) on the overall Smoower ecosystem score (63 vs 48). The gap of 15 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), PostHog is clearly ahead of Formbricks. On education (docs, guides and learning material for developers), Formbricks is ahead of PostHog. On community (issue response, PR reviews and discussion health), PostHog is slightly ahead of Formbricks. On reach (how visible the ecosystem is beyond its own repos), Formbricks is slightly ahead of PostHog. On momentum (release cadence and how fast the ecosystem moves), PostHog is clearly ahead of Formbricks.

Formbricks carries 12,675 GitHub stars across 18 public repos, with 9 repositories active in the last 90 days and 6 external contributors on record. PostHog shows 40,775 stars across 357 public repos, 87 active in the last 90 days and 212 external contributors. The star gap on its own does not decide the comparison, but PostHog's footprint is roughly 3.2x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Formbricks is the stronger read for anyone weighting education. PostHog looks better where momentum is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.