Buffer vs MailerSend

Buffer (Helping people build their business on social media since 2011) and MailerSend (Email service that delivers) both appear on the Smoower Developer Ecosystem Index.

MailerSend (rank #401) holds a narrow lead over Buffer (rank #455) on the overall Smoower ecosystem score (41 vs 39). The gap of 2 points reflects composite signals across code, docs, community and reach.

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

Buffer carries 11,181 GitHub stars across 196 public repos, with 4 repositories active in the last 90 days and 0 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 Buffer's footprint is roughly 22.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Buffer is worth a look for teams already invested in its stack. 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.