Open source alternatives to Mailchimp
4 free tools that do the job of Mailchimp, most stars first. All are web apps you can run on your own server.
4 alternatives
Sorted by most stars.-
listmonk
A self-hosted newsletter and mailing list manager in a single app.
Also an alternative to Klaviyo
-
BillionMail
A self-hosted mail server with newsletters and email marketing.
Web app
-
Notifuse
A self-hosted newsletter, email marketing and transactional email platform with a visual email editor.
Web app
-
Mailcheap
A newsletter tool where you pay for the emails you send, not for dormant subscribers.
Also an alternative to Substack
More alternatives in Email marketing
All Email marketing tools
Is a tool missing? Tell us what you use instead of Mailchimp.
Ask us to add itAbout these numbers. Stars, dates and licenses come from GitHub through ecosyste.ms, collected on 10 Nov 2026; they can lag GitHub by a few days. A project is listed only if it has 300 or more stars, was updated in the last 12 months and states a license. A listing is not an endorsement, and we have not tested these tools on Antideploy yet. Logos belong to their projects and companies and are shown only to say which is which.