Listmonk

Self-hosted newsletter and mailing list manager written in Go. Handles large lists on modest hardware.

The Editorial Verdict

Mailchimp and ConvertKit charge by subscriber count, which adds up fast. Listmonk has no such limits — it's just a Go binary with a Postgres database. Campaign editing is straightforward and analytics are adequate. You need to bring your own SMTP provider, which is where the actual cost lives.

Core Capabilities

High Performance
Single Binary
Campaign Analytics

Replacing Proprietary Software

Listmonk is designed as an open, verifiable replacement for Mailchimp. Migrating to it gives you direct control over your infrastructure, eliminates recurring subscription fees, and prevents proprietary platform lock-in.