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The Best Open-Source Alternatives to Keap

Are you looking for a free or self-hosted alternative to Keap? In 2026, avoiding expensive proprietary software subscriptions is easier than ever. The open-source community has built excellent privacy-friendly tools within the Marketing Automation ecosystem. Currently, there are 3 active replacements available, with Mautic being one of the most prominent selections.

Quick Comparison: Keap vs. Open Source

Full comparison: Keap vs. Mautic →
CriteriaKeapOSS Replacements
Pricing modelPaid / Monthly Fees100% Free / Self-Hosted
Data ControlThird-party ServersFull Ownership & Privacy
CustomizabilityRestricted by VendorUnlimited (Modify Codebase)

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Mautic

šŸ“ˆ Trending⭐ 10k+ Stars
NOASSERTION

Mautic is a free, open-source marketing automation platform empowering businesses to manage and nurture customer relationships while maintaining utmost control over their data, unlike proprietary alternatives like Keap. As a self-hosted solution, Mautic offers unparalleled flexibility, scalability, and data ownership, making it an ideal choice for those prioritizing their online privacy and independence.

⭐ 10,259 Stars
šŸ“ 3,387 Forks
ā— 0 Open Issues
šŸ·ļø NOASSERTION
AGPL-3.0

SuiteCRM is a highly customizable and feature-rich CRM (Customer Relationship Management) system that empowers businesses to manage sales, marketing, and customer support activities while prioritizing data ownership and privacy. By leveraging open-source development and community-driven innovation, SuiteCRM offers a powerful, flexible, and cost-effective alternative to proprietary solutions like Keap, providing complete control over data and business operations.

⭐ 5,602 Stars
šŸ“ 2,384 Forks
ā— 0 Open Issues
šŸ·ļø AGPL-3.0
AGPL-3.0

EspoCRM is a free, customizable, and feature-rich open-source CRM solution that offers a robust platform for managing contacts, leads, opportunities, and sales - providing a cost-effective and privacy-friendly alternative to commercial options like Keap. With its flexible architecture and extensive modularity, EspoCRM empowers businesses to maintain complete control over their data and tailor the platform to suit their unique needs.

⭐ 3,181 Stars
šŸ“ 918 Forks
ā— 0 Open Issues
šŸ·ļø AGPL-3.0

Frequently Asked Questions

What is the best open source alternative to Keap?

Based on GitHub community data (including star count and fork activity), Mautic stands out as one of the most reliable open-source replacements for Keap today.

Why should I use an open-source replacement instead of Keap?

Switching to an open-source solution ensures complete data sovereignty, protects your software environment from sudden vendor price hikes, and gives you full transparent control over your tech-stack metadata.

Top Open-Source Alternatives to Keap in 2026