2 open source alternatives to Mailchimp
Email marketing and automations. Here are the open source projects real teams use instead — ranked by fit, with honest pros and cons for each.
What people don't love about Mailchimp
- Pricing scales by contact count.
- Deliverability has been patchy.
- Intuit acquisition changed direction for some users.
Current Mailchimp pricing (for reference): Free up to 500 contacts; Essentials from $13/month.
Quick comparison
| Alternative | Best for | License | Self-host | Hosted cloud? |
|---|---|---|---|---|
|
Listmonk Self-hosted newsletter and mailing list manager. |
Sending plain newsletters at low cost — bring your own SMTP. | AGPL-3.0 | ★★☆☆☆ | Self-host only |
|
Mautic Open source marketing automation platform. |
When you actually need marketing automation, not just sends. | GPL-3.0 | ★★★★☆ | Yes |
1. Listmonk — Sending plain newsletters at low cost — bring your own SMTP.
Self-hosted newsletter and mailing list manager.
Strengths
- Fast Go binary — single executable.
- Clean UI and import/export tools.
- Bring-your-own-SMTP (Amazon SES, Postmark, etc.).
Weaknesses
- No drag-and-drop visual builder.
- Deliverability depends on your SMTP setup.
- Not a visual marketing suite — plain newsletter focus.
Listmonk homepage · Source on GitHub · Mailchimp vs Listmonk →
2. Mautic — When you actually need marketing automation, not just sends.
Open source marketing automation platform.
Strengths
- Full marketing automation — campaigns, landing pages, scoring.
- Large ecosystem.
- Strong for B2B lead nurturing.
Weaknesses
- Heavy self-host setup (PHP + queue + cron).
- UI is complex and has a learning curve.
- Smaller company behind — not as polished as Mailchimp.
Not what you're looking for?
Browse other tools in Email Marketing & Newsletters, or check out open source projects by category on the full category index.
Other SaaS in Email Marketing & Newsletters
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