Silex
Silex is the free, open-source no-code website builder. Create professional, fast, and secure websites without vendor lock-in. The ethical alternative to Webflow—try Silex today.
What is Silex?
Silex is a professional, free, and open-source no-code website builder designed for those who want total creative control without vendor lock-in. Managed by a non-profit organization (Silex Labs), it serves as a powerful alternative to proprietary tools like Webflow and Squarespace. Silex enables designers and developers to build high-performance, static websites that are secure by design, mobile-friendly, and perfectly optimized for SEO, all while staying committed to the principles of libre software.
Key Features
Libre & Open-Source (AGPL)
Unlike “freemium” builders, Silex is 100% free and open-source. There are no subscriptions, no hidden restrictions, and no profit-driven agendas. You own your data, your code, and your tools completely.
Professional No-Code Designer
Silex provides a canvas that exposes real HTML and CSS concepts without requiring you to write code. This “visual coding” approach ensures that the skills you learn are transferable to professional web development.
Headless CMS Integration
Build modern, dynamic websites by connecting Silex to your favorite headless CMS or API. Whether you use WordPress, Strapi, or Directus, Silex acts as the high-performance front-end for your data.
No Vendor Lock-in
Silex builds on web standards. You can host your generated sites anywhere—GitLab Pages, Netlify, Vercel, or your own eco-friendly servers. You are never tied to a single hosting provider or platform.
Static Site Generation (SSG)
Silex embraces the static web, producing lightweight, ultra-fast websites. This architecture inherently improves SEO rankings, enhances security against hacks, and reduces hosting costs to near zero.
Privacy-First & No Tracking
Silex is built with respect for the user. There is no built-in tracking, no third-party cookies in the websites you create, and your data is never for sale. It is the ethical choice for privacy-conscious creators.
Community-Driven Development
As a non-profit project, Silex is built by users, for users. The roadmap is shaped by a passionate community of designers and developers, ensuring every feature reflects real-world needs rather than shareholder demands.
Use Cases
Silex is the preferred tool for web agencies looking to provide custom front-ends for clients, freelance designers who need pixel-perfect control without coding, and open-source advocates building community projects. It is ideal for creating fast-loading blogs, professional business sites, and sophisticated landing pages that require a unique, high-end design aesthetic.
Why Choose Silex?
Choosing Silex means choosing independence. While proprietary builders promise convenience but deliver lock-in and monthly fees, Silex delivers professional-grade power with total autonomy. It combines the ease of a drag-and-drop interface with the flexibility of a hand-coded site, making it the perfect middle ground for creators who refuse to compromise on speed, security, or ethics.
Pricing & Community Support
Silex is completely free to use on the official instance. As a non-profit, the project is funded through community donations and sponsors who believe in free software. For agencies requiring dedicated infrastructure, professional hosting partners are available, but the core software remains free for everyone, forever.