Alternative to
Open-source alternatives to Mailchimp that still ship
3 open-source startups in this directory are positioned against Mailchimp. 2 pushed code within 30 days of the snapshot of 2026-09-22, 1 has been quiet for 31–120 days, 0 have not pushed in over 120 days. “Alternative to Mailchimp” is a judgment by Jev, TypeSafe’s classifier, made from the repository’s own name, description and homepage, and printed only when it put that match at 0.5 or better. It is not a claim these projects make about themselves, it is not a feature comparison, and Mailchimp has nothing to do with this page.
2 of 3 pushed within 30 days of the snapshot of 2026-09-22. How we measure it →
The list
All 3, most-starred first.
The last column is the most recent push GitHub reported to us on 2026-09-22. It counts a push to any branch, by a person or a bot — it is not a claim that anyone is maintaining the project, and a quiet repository may be a finished one.
| Project | What it does | Stars | Ship status | Last verified push |
|---|---|---|---|---|
| knadh/listmonk | High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app. | 23.5K | Still shipping | Sep 13, 2026 |
| aaPanel/BillionMail | BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr | 15.6K | Slowed | Jun 11, 2026 |
| mail-in-a-box/mailinabox | Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box. | 15.4K | Still shipping | Sep 1, 2026 |
Related collections
Sideways from here.
The 8 largest other alternatives in the directory, then the other ways to slice it. Every count is as of the snapshot of 2026-09-22.
Snapshot of 2026-09-22 · 721 repos in the directory · every number on this page is measured against that date, not against today. What this measurement cannot tell you →