🚀 Twenty | Open-Source, Fully Customizable CRM

Source: Dev.to

📌 Key Features

• Custom Objects & Fields – Design CRM data models tailored to your workflow 🧩
• Dynamic Views – Switch between Table, Kanban & more 📊
• Workflow Automation – Triggers, actions & background jobs ⚙️
• Permissions & Roles – Granular access control for teams 🔐
• Email & Calendar Integrations – Communicate directly inside the CRM 📧📅
• High‑Performance Backend – Powered by Redis, BullMQ & NestJS 🚀
• Open‑Source & Self‑Hostable – Full data ownership, no lock‑in 🌍

🛠 Tech Stack & Architecture

Core Language

• 💻 TypeScript – Used across frontend, backend & tooling

Frontend

• 🎨 React – SPA‑based CRM UI
• 📦 Recoil – State management
• 💠 Emotion – CSS‑in‑JS styling
• 🌐 Lingui – Internationalization (i18n)

Backend

• 🧠 NestJS – API & business logic
• 🗄 PostgreSQL – Primary database
• ⚡ Redis – Caching & performance
• 🔄 BullMQ – Background jobs & workflows

DevOps & DX

• 🧱 Nx Monorepo – Shared libraries & fast builds
• 🧪 Jest & Chromatic – Testing & UI validation
• 📊 Sentry – Error monitoring
• 🌍 Crowdin – Translation management
• 🧹 ESLint & Prettier – Code quality

🌟 Problems Twenty Solves

• 🔹 Vendor Lock‑In – Own and control your data
• 🔹 Outdated UX – Modern, SaaS‑level interface
• 🔹 Limited Customization – Fully adaptable CRM structure
• 🔹 Scalability Issues – Enterprise‑grade architecture

🏗 High‑Level Architecture

• React SPA communicating via REST & GraphQL
• NestJS backend handling permissions, workflows & integrations
• PostgreSQL for structured CRM data
• Redis + BullMQ for background processing
• Nx monorepo for scalable development

Repository & Maintenance

• GitHub Repo: https://reactjsguru.com/repos/introducing-twenty-a-flexible-developer-friendly-crm-for-the-modern-era?utm_source=devto&utm_medium=social&utm_campaign=repo_post
• Maintained by: TwentyHQ

Twenty is a next‑generation CRM for teams who want flexibility, ownership, and modern UX without compromise.