Can I open-source Mailchimp?

YES · mature open-source replacement
price $20/moyou'd save $240/yrcategory 📮 newslettersreplaced by 0 people

Yes. Ghost (49k stars), Listmonk (22k stars), Mautic (10k stars) are mature open-source replacements for Mailchimp — self-host with docker and stop paying $20/mo.

why people still pay

They pay because email is business-critical and deliverability problems are expensive.

what you lose

xdeliverability

xtemplate/editor polish

xautomation builder

xecommerce integrations

xsegmentation

xcompliance

xsupport

the open-source alternatives

These projects already replace it, free.

LListmonkHigh-performance single-binary newsletter and mailing list manager with campaigns, templates, and Postgres backend22kaug 2026open source↗MMauticThe heavyweight open-source replacement for segmentation and automation; it also replaces ease with operations.10kaug 2026open source↗PPlunkCampaigns, transactional mail and workflows together; audience CRM depth is thinner.5.3kaug 2026open source↗

What each one is, in full: Listmonk · Mautic

all 6 open-source alternatives to Mailchimp →· no votes, no pay-to-list · just what's real

share on X ↗"I just replaced Mailchimp ($20/mo) with open source"
questions
Can I open-source Mailchimp?

Yes. Listmonk replaces Mailchimp today — self-host it on your own server or machine with no subscription. The full list of open-source alternatives is on this page.

How much does Mailchimp cost?

Mailchimp costs about $20/month (Standard, checked 2026-07-30), which is $240 per year. That's what you save by replacing it with open source.

What do I lose by replacing Mailchimp?

Honestly: deliverability; template/editor polish; automation builder; ecommerce integrations; segmentation; compliance; support. If any of those are load-bearing for you, keep paying.

Is there an open-source alternative to Mailchimp?

Yes: Listmonk (High-performance single-binary newsletter and mailing list manager with campaigns, templates, and Postgres backend) Mautic (The heavyweight open-source replacement for segmentation and automation; it also replaces ease with operations.) Plunk (Campaigns, transactional mail and workflows together; audience CRM depth is thinner.) All 6 curated open-source alternatives are at caniopensourceit.online/mailchimp/alternatives.