Open Source Mailchimp Alternatives
Run email marketing on your own terms. Discover self-hosted open source alternatives to Mailchimp and Sendinblue for newsletters and campaigns.
Open Source, Self-Hosted Mailchimp Alternatives
MailCheap
MailCheap is an open-source newsletter app for writing, sending, and publishing email campaigns, from the dashboard or an AI agent via its built-in MCP server. Self-host it with your own Amazon SES or PostShiba account, or use MailCheap Cloud, which runs the same code. It imports lists from Beehiiv, Substack, and Mailchimp, gives every newsletter its own website, and bakes in deliverability protections like warm-up sending, list cleanup, and Gmail spam-rate monitoring.
Mautic
Mautic is an open-source marketing automation platform, and a self-hosted alternative to HubSpot, Marketo, and ActiveCampaign. It unifies contact management, email campaigns, landing pages, forms, and multi-step drip workflows, with lead scoring and segmentation deciding who receives what. Running on your own server means contact data and campaign analytics stay on your infrastructure, with no per-contact fees.
listmonk
An open-source, self-hosted newsletter and mailing-list manager, and an alternative to Mailchimp and Sendinblue. listmonk ships as a single Go binary with a modern dashboard, scales to millions of subscribers, and supports SQL-based segmentation, templating, multi-list campaigns, and delivery through any SMTP provider.