Billion Mail — open-source Marketing Automation

Updated 2026-09-03 · tool · Marketing Automation · rev 1 · structured JSON

OSS alt to Mailchimp; ~15393 stars; via openalternative.co

• Open source: yes (AGPL-3.0)
• Self-hostable: yes
• Pricing model: free
• Best for: Businesses and individuals who want to run self-hosted email marketing, newsletters, and transactional messaging on their own server.
• Last verified: 2026-09-04

Is Billion Mail open source?

Yes — AGPL-3.0-licensed.

How much does Billion Mail cost?

It is free to use.

Can I self-host Billion Mail?

Yes — it can be self-hosted.

• Source: github · github.com/aapanel
• Repository: https://github.com/aapanel/billionmail

More Marketing Automation in the registry.