Best Open Source CRM for 2026
The best CRM is the one you can reshape. We compared 9 open-source CRMs in 2026 to find the most flexible, developer-friendly options for small businesses.
Marmelab founder and CEO, passionate about web technologies, agile, sustainability, leadership, and open-source. Lead developer of react-admin, founder of GreenFrame.io, and regular speaker at tech conferences.
The best CRM is the one you can reshape. We compared 9 open-source CRMs in 2026 to find the most flexible, developer-friendly options for small businesses.
A better Datagrid, AutoPersistInStore, InPlaceEditor, default prop overrides, optimistic creation, MUI V7, a kanban demo, and more!
React-admin v5.5 and v5.6 introduce broader compatibility, a modern black and white theme, and enhanced features for forms and list views. The Enterprise Edition packages also receive new components and improvements.
A developer-friendly comparison of the best self-hosted CRMs for small businesses. Compare flexibility, integrations, and ease of use.
We've released two minor versions of react-admin v5 since the summer. Read on to learn about the new features and improvements we've added to the library.
Every company has unique CRM needs, but custom solutions are costly. We built Atomic CRM—an open-source framework for custom CRMs—to tackle this challenge.
Why investing in documentation pays off, and how to write great documentation, based on our experience with react-admin.