Mautic provides free and open source marketing automation software available to everyone. Mautic is an open source marketing automation platform empowering organizations to build meaningful connections with their audiences through data-driven engagement.

Mautic is the world's largest open source marketing automation project, launched in 2014 and quickly became a game-changer in the marketing automation space. MAUTIC is a trademark of the Mautic project of the Open Source Collective. The platform provides a suite of tools for lead management, email marketing, campaign automation, and more with email, landing pages, lead scoring, and multi-channel campaigns. It's particularly attractive for businesses that want enterprise-grade marketing solutions without the hefty price tag often associated with proprietary tools like HubSpot, Marketo, or Pardot. The vision is to be the most privacy-focused, accessible and extendable marketing automation product on the market.
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Cheetah Digital by Marigold is an email marketing and cross-channel campaign platform that integrates customer data management with campaign orchestration. The platform enables marketers to deliver highly personalized experiences across email, mobile, social, and web by consolidating customer information into unified profiles.
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Resend is the modern email API for developers, designed to simplify the creation, testing, and sending of emails at scale. Launched in 2023 with Y Combinator support, it offers a clean RESTful API with SDKs for 18 programming languages and frameworks.
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Mailjet by Sinch is a global email marketing and email API platform designed for both developers and marketing teams. Sinch Mailjet is an easy-to-use platform for designing, sending, and monitoring email marketing campaigns, newsletters, and automated emails.