Can I open-source Campaign Monitor?
YES · mature open-source replacementYes. Ghost (49k stars), listmonk (23k stars), Keila (2k stars) are mature open-source replacements for Campaign Monitor — self-host with docker and stop paying $12/mo.
People still pay for Campaign Monitor because newsletter operators pay for inbox placement, growth mechanics, and operational confidence on publication day. The recurring cost buys DNS authentication, reputation, bounces, complaints, unsubscribe compliance, templates, queues, analytics, backups, and support, not just the visible interface.
xtemplate editor, deliverability, journeys, agency features, and integrations
xinbox-placement expertise
xadvanced automations
xcommerce integrations
xrecommendation and ad networks
These projects already replace it, free.
LlistmonkCampaigns, segments and analytics in one fast compose file; templates favor competence over theatre.open source↗KKeilaA friendly campaign editor, forms and tracking without contact pricing; delivery is your SMTP provider's job.open source↗NNotifuseVisual MJML campaigns, scheduling, A/B tests and analytics; bring PostgreSQL and a sender.open source↗What each one is, in full: listmonk · Keila
all 5 open-source alternatives to Campaign Monitor →· no votes, no pay-to-list · just what's real
Can I open-source Campaign Monitor?
Yes. listmonk replaces Campaign Monitor today — self-host it on your own server or machine with no subscription. The full list of open-source alternatives is on this page.
How much does Campaign Monitor cost?
Campaign Monitor costs about $12/month (Lite, checked 2026-07-31), which is $144 per year. That's what you save by replacing it with open source.
What do I lose by replacing Campaign Monitor?
Honestly: template editor, deliverability, journeys, agency features, and integrations; inbox-placement expertise; advanced automations; commerce integrations; recommendation and ad networks. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Campaign Monitor?
Yes: listmonk (Campaigns, segments and analytics in one fast compose file; templates favor competence over theatre.) Keila (A friendly campaign editor, forms and tracking without contact pricing; delivery is your SMTP provider's job.) Notifuse (Visual MJML campaigns, scheduling, A/B tests and analytics; bring PostgreSQL and a sender.) All 5 curated open-source alternatives are at caniopensourceit.online/campaign-monitor/alternatives.