HubSpot vs MailerSend

HubSpot and MailerSend (Email service that delivers) both appear on the Smoower Developer Ecosystem Index.

HubSpot (rank #93) holds a modest lead over MailerSend (rank #401) on the overall Smoower ecosystem score (56 vs 41). 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), HubSpot is slightly ahead of MailerSend. On education (docs, guides and learning material for developers), MailerSend is clearly ahead of HubSpot. On community (issue response, PR reviews and discussion health), HubSpot is slightly ahead of MailerSend. On reach (how visible the ecosystem is beyond its own repos), HubSpot is clearly ahead of MailerSend. On momentum (release cadence and how fast the ecosystem moves), HubSpot is clearly ahead of MailerSend.

HubSpot carries 53,481 GitHub stars across 381 public repos, with 35 repositories active in the last 90 days and 4 external contributors on record. MailerSend shows 499 stars across 22 public repos, 12 active in the last 90 days and 7 external contributors. The star gap on its own does not decide the comparison, but HubSpot's footprint is roughly 107.2x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

HubSpot is the stronger read for anyone weighting reach. MailerSend 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.