Fillout vs sendinblue (now Brevo)

Fillout and sendinblue (now Brevo) both appear on the Smoower Developer Ecosystem Index.

sendinblue (now Brevo) (rank #372) holds a narrow lead over Fillout (rank #510) on the overall Smoower ecosystem score (42 vs 37). The gap of 5 points reflects composite signals across code, docs, community and reach.

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

Fillout carries 2 GitHub stars across 9 public repos, with 3 repositories active in the last 90 days and 3 external contributors on record. sendinblue (now Brevo) shows 653 stars across 37 public repos, 0 active in the last 90 days and 0 external contributors. The star gap on its own does not decide the comparison, but sendinblue (now Brevo)'s footprint is roughly 326.5x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Fillout is the stronger read for anyone weighting reach. sendinblue (now Brevo) looks better where education 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.