Need a CRM that fits your business—not the other way around? We tested the top open-source options of 2025 to find the most customizable, developer-friendly solutions.

marmelab

Choosing the right CRM for your small to medium business can be challenging, especially if you need an open-source solution that you can customize. The post reviews the best open-source CRMs of 2025, focusing on their adaptability, ease of use, and documentation. Top picks include Twenty, Atomic CRM, and EspoCRM, which are highlighted for being developer-friendly and supporting modifications.

Best Open Source CRMs for 2025

Frappe actually has a CRM that is separate from ERPNext.
<a href="https://frappe.io/crm" target="_blank" rel="noopener nofollow">https://frappe.io/crm</a>

Quite a good bench. I am building a SaaS and the CRM question start to arise. Good overlook

Very useful and balanced article! <a href="https://krayincrm.com/" target="_blank" rel="noopener nofollow">Open source CRM</a> solutions you mentioned for 2025 are really helpful for business growth. It was nice to see Krayin CRM in it too – it is a great option especially for SMEs as it has a simple interface and good customization possibilities. It would be great if you also add performance benchmarks or real use-case comparisons in the upcoming updates. Thanks for this informative post!