Top 5 Open-Source and API-Accessible Marketing Automation Platforms

Top 5 Open-Source and API-Accessible Marketing Automation Platforms

Finding reliable marketing automation software may seem like a Herculean task that calls for a lot of time and money. For businesses without extensive marketing needs, the most well-known marketing automation platforms typically offer features that are unnecessary or irrelevant to all but the most technically savvy of their customers.

There are, thankfully, a number of free and open-source marketing automation tools available. With that in mind, let’s dive into a review of some of the best open-source and open API marketing tools out there, including a rundown of their most useful features and functions.

  • HubSpot
  • Agnitas
  • Mautic
  • Acquia
  • Odoo


HubSpot is an inexpensive option that works well for small and medium-sized businesses. HubSpot’s primary products aren’t free and open-source, but the company is working on a number of open-source alternatives. Among these are Chrome/Chromium extensions, local CMS page development, and a variety of event-specific apps. Customers can also make alerts and messages for their app with the help of a positioning engine for making overlays, an easy-to-style dialogue library, tooltips, dropdowns, and Messenger. HubSpot is a one-of-a-kind option for businesses interested in experimenting with different open-source marketing automation platforms.


The AGNITAS E-Marketing Manager is available as open-source software developed by the German company formerly known as OpenEMM. If your company has basic email marketing and automation requirements, but doesn’t need advanced features, this is a good option. OpenEMM complies with the EU General Data Protection Regulation and is freely downloadable. New features in the latest release include web-based forms for user self-service, auto-bounce management, real-time graphical statistics, user-defined and behavior-based target groups, and much more. Before committing to the full install, users can try out the service with a demo account.


When it comes to open-source marketing automation, Mautic is among the most popular options. This programme is translated into more than 35 tongues and is used by over 200k businesses worldwide. The platform is available for download, and users can participate in development by submitting patches and starting new threads in the forum. Using Mautic, customers can create automated email nurturing sequences, tailor communications, run split tests, and analyse performance metrics. The documentation and source code for this solution are fully accessible to anyone who have interest in it.


Acquia is an open-source DXP (digital experience platform) that aids businesses in creating and hosting websites and digital applications. It also analyses and automates customer communications across all channels. Acquia’s Campaign Studio provides users with an open-source marketing automation platform that can be used to improve email marketing, create more effective landing pages, streamline campaign management, send messages to customers with a visual builder, and gain a deeper understanding of customers.


Odoo is a suite of open-source business management applications that a company can use to manage customer relationships, online stores, inventory, point-of-sale systems, finances, projects, employees, and more. It is an affordable choice for expanding businesses in search of a solution that can scale with them. Odoo’s marketing automation features allow users to do a wide range of things, such as plan out multi-step campaigns, automate workflows, manage leads, compose emails with simple drag-and-drop editors, and more.