Atomic CRM is an open-source CRM built with React and Supabase by Marmelab, free to self-host or available as a managed subscription from €25/month.
Category
CRM
Pricing
Freemium, from Free (self-hosted); €25/month (Starter, managed)
Verified
Not yet
Last updated
July 18, 2026
Founded
2024
Headquarters
Nancy, France
APIOpen SourceAIFreemiumSelf-Hosted
Overview
Atomic CRM is an open-source CRM toolkit created by Marmelab, a French software studio based in Nancy, and introduced in 2024. It's designed for developers who want to adapt a CRM to their specific business process rather than conform to a rigid off-the-shelf tool.
Key Features
Atomic CRM covers contact and company management, notes, data import/export, and a Kanban-style deal pipeline. Advanced capabilities include SAML single sign-on, email-to-note automation, API access, mobile access, and multilingual support.
It also includes an AI harness for Claude Code, letting non-technical users request CRM customizations through natural-language prompts.
Pricing Overview
Atomic CRM is free to self-host under its open-source license. Marmelab also offers managed hosting with a Starter plan at €25/month, a Team plan at €50/month, and custom Enterprise pricing; all managed plans include SAML SSO, email integration, and API access.
Key Features
Contact & Company Management — Organize contacts, companies, and notes in one place.
Deal Pipeline / Kanban Board — Visualize and manage sales deals through customizable pipeline stages.
Email-to-Note Automation — Automatically capture email correspondence as CRM notes.
SAML Single Sign-On — Enterprise-grade authentication for managed deployments.
API Access — Programmatic access for integrating Atomic CRM with other systems.
AI Harness for Claude Code — Lets non-technical users customize the CRM via natural-language prompts.
Pros & Cons
Pros
Fully open source with complete source-code transparency
Self-hostable for full data ownership and no vendor lock-in