CRM, Marketing & Scheduling
Top 2 Self-Hosted Open-Source Alternatives to Mailchimp / ConvertKit (2026)
Mailchimp / ConvertKit costs Standard 15k Contacts ($135/mo) ($135/mo or $1,620/year for 10 seats). Switch to one of the verified open-source Docker replacements below.
★ 15.9k Stars • AGPL-3.0
256MB RAM / 0.5 vCPU
Listmonk
High-performance self-hosted newsletter and mailing list manager written in Go (single binary + Postgres)
- ✓Send 100,000 emails for $10 via AWS SES or Resend
- ✓Uses <150MB RAM even with 1M subscribers
- ✓SQL-powered subscriber segmentation
listmonk/listmonk:latest
TCO & Docker Compose →
★ 2.4k Stars • AGPL-3.0
512MB RAM / 0.5 vCPU
Keila
Open-source newsletter tool built with Elixir and Phoenix with visual block editor and analytics
- ✓Visual drag-and-drop block editor
- ✓Native AWS SES, Postmark, SendGrid & SMTP
- ✓Privacy-safe open/click stats
pentacent/keila:latest
TCO & Docker Compose →