Twenty
twenty.comThe #1 Open Source CRM for modern teams
Dev Toolsopen-sourcecrmself-hostedcustomizabledeveloper-toolsenterpriseai-assisted

About
Twenty is an open-source CRM platform designed for technical teams who need a fully customizable, self-hosted alternative to proprietary tools like Salesforce or HubSpot. It provides production-grade building blocks—data model, permissions, authentication, and workflow engine—that teams can assemble and extend using standard developer tooling. The platform emphasizes flexibility, AI-assisted iteration, and no vendor lock-in.
Problem
Businesses must choose between rigid proprietary CRMs and costly, fragile in-house builds that are hard to maintain and adapt.
For
Technical teams and developers building custom CRM solutions for their organization
How it works
Twenty provides an open-source, modular CRM framework with an SDK and building blocks that developers extend using standard coding tools and AI agents to compose custom CRM applications.
Business model
open-source
Status
launched
Company
Twenty