The #1 Open-Source CRM
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Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
Learn more about why we built Twenty
Installation
Cloud
The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define'; export default defineObject({ nameSingular: 'deal', namePlural: 'deals', labelSingular: 'Deal', labelPlural: 'Deals', fields: [ { name: 'name', label: 'Name', type: FieldType.TEXT }, { name: 'amount', label: 'Amount', type: FieldType.CURRENCY }, { name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME }, ], });
Then ship it to your workspace:
npx twenty app:publish --private
See the app development guide for objects, views, agents, and logic functions.
Building with a coding agent? Install the official Twenty app skills, which work in Claude Code, Codex, Cursor, Pi, and any other harness supported by the skills CLI:
npx skills add https://github.com/twentyhq/twenty/tree/agent-skills --list
The agent-skills branch is created by the first successful publish from main. Until then, use the local build instructions. SKILLS.md explains the other skill families in this repository and who they are for.
Self-hosting
Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.
Everything you need
Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the 
User Guide for product walkthroughs, or the Documentation for developer reference.
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Learn more about version control in docStack
TypeScript
Nx
NestJS, with BullMQ, 
PostgreSQL, 
Redis
React, with Jotai, Linaria and Lingui
Thanks
Thanks to these amazing services that we use and recommend for code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
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