Twenty

What is Twenty?

Twenty is the #1 open-source CRM designed for modern technical teams that need a flexible, scalable, and customizable solution. Unlike traditional CRMs that lock you into proprietary ecosystems, Twenty provides a modular toolkit that lets you compose your CRM and internal applications using a single extensibility framework. With Twenty, you can define your own data models, layouts, and automations using standard programming languages and AI coding tools, avoiding the slow deployment cycles and black-box logic of legacy systems.

Key features include a clean, intuitive interface reminiscent of Notion, real-time updates, and a developer experience that mirrors normal software development—local setup, real data, live testing, and no proprietary tooling. Twenty supports unlimited customization, allowing you to adapt the CRM to your unique business processes as you grow. Use cases range from managing launches, payloads, and customers in a space operations context to migrating from Salesforce with agentic AI that compresses weeks of work into a single-person oversight. Technical teams benefit from a production-grade framework that includes data modeling, permissions, authentication, and a workflow engine, eliminating the need to rebuild these components from scratch.

Twenty is particularly valuable for organizations that want to avoid vendor lock-in and reduce costs. For example, AC&T moved to a self-hosted Twenty instance, cutting CRM costs by over 90% while eliminating forced migrations and vendor risk. With Twenty, you get the building blocks to create a custom CRM that meets complex business needs and adapts quickly as your business evolves. Whether you're a startup scaffolding a launch-ops CRM or an enterprise seeking a cost-effective alternative to Salesforce, Twenty empowers you to build and iterate without compromise.

Use Cases

Key Features

open source CRM modular toolkit custom data models real time updates Notion like interface developer friendly setup unlimited customization AI integration production grade framework

Who is it for?

technical teams, developers, space operations teams, Salesforce migrators, IT managers, platform teams

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