Mailchimp is the popular email marketing tool. OSS alternatives let you self-host and pay only for sending infrastructure (e.g. SES at ~$0.10 per 1000 emails) instead of per-subscriber.
Listmonk is the dominant OSS email marketing tool. Newsletters, campaigns, segmentation, list management, analytics.
github.com/knadh/listmonkListmonk is the dominant OSS email marketing tool. Newsletters, campaigns, segmentation, list management, analytics. Single Go binary + Postgres. Pair with AWS SES or Mailgun for sending. Costs ~$5/mo for 100k subscribers vs. Mailchimp's $300+.
You have 1k+ subscribers and want to escape per-subscriber pricing.
You're under 500 subscribers — Mailchimp free tier is easier.
Keila is the newer, Elixir-based alternative to Listmonk. Cleaner UI, simpler setup. Smaller community but actively developed.
You prefer a cleaner UI and don't need Listmonk's breadth of features.
You need a battle-tested tool with bigger community — Listmonk is more mature.
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