Atomic CRM vs Twenty

Full-featured CRM built with React, shadcn/ui, and Supabase

A complete, open-source CRM with contacts, companies, deals, and pipeline management. Built with React, shadcn/ui, and Supabase. Clean modern UI, real-time updates, and self-hostable. A lightweight alternative to HubSpot for small teams who want CRM functionality without enterprise complexity or pricing.

Open-source CRM. Modern Salesforce alternative.

Twenty is an open-source CRM with a modern, beautiful UI. Manage contacts, companies, deals, and tasks. Built with a flexible data model and API-first approach. Self-host or use cloud.