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MailCatcher vs MailHog

The same facts for both, read from GitHub every night, and the relation a person reviewed.

MailCatcher vs MailHog
Fact	MailCatcher	MailHog
Language	Ruby	Go
Licence	MIT	MIT
Stars	6.8k	16k
Latest	v0.10.0	v1.0.1
Last push	2026-09-16	2024-02-13
Release cadence	too few releases	about 196 days between releases
Active contributors	3 commit authors on the default branch in the last 90 days	0 commit authors on the default branch in the last 90 days
Flags	none	No push in a year

How they relate

MailHog replaces MailCatcher. Alternatives to MailCatcher →
Full replacementSMTP catch-all with a web inbox, with a Go binary and message storage options.
Both replace Mailtrap. Alternatives to Mailtrap →
PartialMailCatcherA local SMTP server and web inbox for development; no API checks or sending service.
PartialMailHogSMTP catch-all with a web inbox and API; no sending service or HTML checks.