> /v1/alternatives/mailgun
Open source alternatives to Mailgun[005]
Mailgun provides transactional and bulk email sending over API and SMTP, with routing, deliverability tooling and analytics. Below are 5 self-hostable open source alternatives, ranked by GitHub popularity.
Plunk
The Open-Source Email Platform
★ STARS
5.0k
⑂ FORKS
341
useSend
Open source alternative to Resend, Sendgrid, Postmark etc.
★ STARS
4.2k
⑂ FORKS
373
Sendune
Free, open source, HTML email template editor and no code designer.
★ STARS
2.1k
⑂ FORKS
131
DoubleZero
A markdown email micro service for the people!
★ STARS
1.2k
⑂ FORKS
66
hyvor-relay
Open-Source Email API for Developers. Self-hosted Alternative to SES, Mailgun, SendGrid.
★ STARS
578
⑂ FORKS
31
// EDITOR'S TAKE
useSend and Plunk are the practical picks, but both sit on top of AWS SES rather than sending mail themselves, so you get Mailgun's API and dashboard without owning the IP reputation. hyvor-relay is the choice if you want to run the delivery stack yourself, and Sendune is really a template builder and SES front end rather than a full platform.
// FREQUENTLY ASKED
What is the best open source Mailgun alternative?
Plunk is the most popular open source Mailgun alternative by GitHub stars (5,050 stars). The other 4 options are ranked above.
Are these Mailgun alternatives self-hostable?
Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.
Are they free?
All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.
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