MailerSend vs Twilio SendGrid

MailerSend (Email service that delivers) and Twilio SendGrid (Official open source libraries - send emails and integrate with our APIs fast.) both appear on the Smoower Developer Ecosystem Index.

Twilio SendGrid (rank #55) holds a modest lead over MailerSend (rank #401) on the overall Smoower ecosystem score (60 vs 41). The gap of 19 points reflects composite signals across code, docs, community and reach.

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

MailerSend carries 499 GitHub stars across 22 public repos, with 12 repositories active in the last 90 days and 7 external contributors on record. Twilio SendGrid shows 12,177 stars across 125 public repos, 23 active in the last 90 days and 9 external contributors. The star gap on its own does not decide the comparison, but Twilio SendGrid's footprint is roughly 24.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

MailerSend is the stronger read for anyone weighting education. Twilio SendGrid looks better where reach 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.