The best open source alternative to Userlist is Mautic. If that doesn't suit you, we've compiled a ranked list of other open source Userlist alternatives to help you find a suitable replacement. Other interesting open source alternatives to Userlist are: Plunk, Dittofeed, and Notifuse.
Userlist alternatives are mainly Marketing Automation Tools but may also be Customer Communication Platforms or Email Marketing & Newsletter Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Userlist.
Mautic is a free and open source marketing automation platform that helps businesses manage leads, create campaigns, and analyze results.

Mautic is the world's largest open source marketing automation project, empowering over 200,000 organizations to grow their communities and reach their marketing goals. With support for 35+ language translations and contributions from 1,000+ community members, Mautic offers a robust and flexible solution for businesses of all sizes.
Key features of Mautic include:
As an open source platform, Mautic offers unparalleled customization options and the ability to extend functionality through plugins and integrations. Whether you're a small business owner or part of a large enterprise, Mautic provides the tools you need to create engaging marketing campaigns and drive growth.
Join the Mautic community today and take control of your marketing automation with a powerful, flexible, and cost-effective solution.
Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.

Plunk is revolutionizing the email marketing and communication landscape with its comprehensive, open-source platform. Here's what makes Plunk stand out:
All-in-One Solution: Plunk combines marketing, transactional, and broadcast emails in one platform, eliminating the need for multiple tools and simplifying your email strategy.
Affordable Pricing: With a cost-effective model of $0.001 per email, Plunk is up to 5 times cheaper than competitors like Mailchimp, Twilio SendGrid, and Mailgun. You only pay for what you use, not for unused contacts.
Privacy-Focused: All data is hosted, stored, and processed in the EU, adhering to strict privacy standards. Plunk prioritizes security, transparency, and data ownership.
Powerful Features:
Responsive Email Editor: Build responsive emails using Plunk's editor or import your own HTML, ensuring your emails look great even in Outlook.
Open-Source Advantage: As an open-source platform, Plunk offers transparency, customizability, and community-driven improvements.
User-Friendly: With an intuitive UI and easy setup, Plunk is accessible for businesses of all sizes and technical expertise levels.
Generous Free Tier: Send up to 3,000 emails per month for free, with no credit card required.
Plunk is trusted by over 1,000 companies, offering a blend of affordability, functionality, and privacy that makes it an attractive alternative to traditional email service providers. Whether you're sending transactional emails, marketing campaigns, or automated sequences, Plunk provides the tools and flexibility to make your email communication delightful and effective.
Dittofeed offers low-code tools for message automation across multiple channels, including powerful segmentation and personalization features.

Dittofeed is an open-source customer engagement platform that modernizes marketing automation. It provides a suite of tools for creating and managing customer messaging campaigns across various channels.
Key features include:
Journeys: A drag-and-drop GUI for automating marketing and transactional messages based on user actions. It supports multi-trigger journeys, integrated branch-based analytics, and local timezone scheduling.
Segments: A powerful segmentation engine with a low-code UI. Users can create segments based on performed events, identify events, subscription status, and unlimited AND/OR conditions.
Templates: An HTML/MJML editor for creating message templates with easy personalization using Liquid syntax. It includes features for testing messages and drafts.
Channels: Omni-channel support for delivering automated messages, including email, SMS, and webhooks for mobile push, Slack, WhatsApp, and more.
Developer-friendly: Dittofeed offers various authentication modes, REST and Admin APIs, SDKs for multiple platforms, and a robust infrastructure built on Postgres, ClickHouse, and Temporal.
Self-hosting option: Users can self-host Dittofeed to maintain full control of their data and avoid vendor lock-in.
Integrations: Supports various message channels (e.g., Amazon SES, Resend, Postmark, Twilio SMS), data sources (REST API, Twilio Segment, Polytomic), and data destinations (Hubspot, CSV).
Dittofeed positions itself as an alternative to established platforms like MailChimp and Iterable, offering innovation and improvement without excessive pricing. It's suitable for organizations of various sizes that need to automate user messaging, with a UI simple enough for non-technical team members to use.
The platform is available as a cloud service with a 14-day free trial, starting at $75/month, or as a free self-hosted option. Dittofeed also offers responsive support through Slack Connect, Discord community, and email.
Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.

Notifuse is a modern, self-hosted email platform that provides a cost-effective alternative to expensive services like Mailchimp, Brevo, and Klaviyo. Built for developers and marketers who want complete control over their email infrastructure without the recurring costs.
Key Features:
Benefits:
Perfect for businesses, agencies, and developers who want professional email marketing capabilities without vendor lock-in or escalating costs.
Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
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