Free Open-Source AI Website Builders

Top Free Open-Source AI Website Builders (Full Guide)

 Why Open-Source AI Website Builders Are the Future

But what does open source + AI really mean?

• Open-source: The code is public. You can edit, self-host, and even contribute to it.

• AI website builder: A tool that uses artificial intelligence to generate content, layout, design, or code automatically.

When you combine both, you get:

• 🧩 Customizability: Add your own plugins or tweak the builder.

• 💰 Cost efficiency: Most are free or self-hosted — perfect for startups, side hustlers, and freelancers.

• 🧠 Automation: AI handles repetitive design and writing tasks.

• 🔒 Data privacy: You own everything — no data sharing with corporate SaaS.

Let’s explore the top open-source AI website builders that anyone can use for free in 2025.

1. Silex — Free, Browser-Based Open-Source Website Builder

Website: https://www.silex.me

 Overview

Developers love Silex because it’s open under the AGPL license, meaning you can host it on your own server or modify the code.

Silex doesn’t come with built-in AI yet, but it integrates easily with:

• ChatGPT or Claude API for writing website copy

• AI layout tools via plugins or scripts

• Automatic code optimization tools

• Drag-and-drop design editor

• No coding required

• Export static HTML sites (ideal for GitHub Pages, Netlify, or Vercel)

• Built-in SEO fields

• Can run locally or on a hosted server

• 100% free and open-source

• No database needed

• Works offline

• Lightweight and fast

• Limited AI automation natively

• Requires basic hosting knowledge

Perfect for: Freelancers, bloggers, and creators who want total design freedom without monthly costs.

 2. WordPress + AI Plugins (The Open-Source Power Combo)

Website: https://wordpress.org

Overview

• 10Web AI Builder: Automatically creates sites from a text prompt or existing URL.

• AI Engine by Jordy Meow: Adds AI-generated text, images, and chatbots.

• Elementor AI: Generates headlines, page text, and SEO meta tags automatically.

• Huge plugin ecosystem (60,000+ free plugins)

• Works with thousands of themes

• Self-hosted = full ownership

• Compatible with WooCommerce, SEO plugins, and page builders

• Open-source, free, and flexible

• Works with any AI model or API

• Easy to monetize with ads or affiliates

• Beginner-friendly with visual editors

• Requires hosting setup

• Some AI features are in premium plans

Perfect for: Bloggers, affiliate marketers, and entrepreneurs building multiple sites.

 3. Builder.io — AI-Driven Builder with Open APIs

Website: https://www.builder.io

 Overview

• “AI Visual Editor” automatically adjusts design and layout.

• Content generation via OpenAI integration.

• Real-time A/B testing with AI optimization.

• Drag-and-drop editing

• Integration with React, Next.js, Shopify, and more

• Free tier for small sites

• REST & GraphQL APIs

• Developer-friendly

• Great for teams

• Supports headless CMS setups

• Not entirely open-source

• Some advanced AI tools are premium

Perfect for: Developers and startups who want AI automation + open APIs without full vendor lock-in.

4. GrapesJS — Open-Source Framework for AI-Powered Design

Website: https://grapesjs.com

Overview

Developers love it because they can integrate AI APIs like ChatGPT to automate design, generate components, or optimize code.

• AI integration via OpenAI or Hugging Face API

• Auto-generate page layouts from text prompts

• Real-time content editing assistance

• Modular drag-and-drop editor

• CSS and HTML export

• Flexible plugin system

• Responsive design builder

• 100% open-source

• Highly customizable

• Great documentation

• Technical setup needed

• Aimed more at developers

Perfect for: Developers who want to build AI-powered design tools or internal site generators.

5. Webstudio — Figma-Style Open-Source AI Builder

Website: https://webstudio.is

Overview

• Built-in AI assistant for text and structure suggestions

• Layout auto-generation using machine learning

• Real-time AI feedback on SEO and accessibility

• Self-hosted or cloud version

• Exports clean HTML/CSS

• Team collaboration

• Built for non-coders

• Sleek design interface

• Fully open-source

• Fast performance

• Smaller community

• Still developing advanced features

Perfect for: Creative teams, designers, and agencies that want design freedom + AI assistance.

6. TeleportHQ — AI-Powered Open-Source Front-End Platform

Website: https://teleporthq.io

Overview

TeleportHQ is an AI-assisted open-source front-end builder that generates React, Next.js, or plain HTML code automatically.

It’s ideal for developers and startups that want to skip repetitive front-end tasks.

• AI code generation from UI design

• Real-time visual editor

• Smart layout suggestions

• Integration with frameworks (React, Vue, Angular)

• Open-source (MIT license)

• Cloud collaboration

• Free for individuals and small teams

• Developer-friendly

• Saves hours of coding

• Open architecture

• Not suitable for beginners

• AI features need set up

Perfect for: Front-end developers and AI startups who want AI-assisted design automation.

 7. Framer AI — Free AI Website Builder with Open Integration

Website: https://www.framer.com

Overview

• Full AI layout generator

• Instant content and image creation

• Live preview and hosting

• No-code visual editor

• Export HTML or host with Framer

• Integrates with OpenAI and design tools

• Extremely fast

• Easy for beginners

• Free plan with no code needed

• Closed-source

• Limited customization

Perfect for: Non-technical users who want to quickly launch AI-generated landing pages.

Comparison Table: Open-Source AI Website Builders

 Benefits of Open-Source AI Website Builders

1. Complete Control: You own your website, files, and hosting.

2. Free Forever: Most tools are open-source or offer free tiers.

3. AI Efficiency: Automate layout, SEO, and copywriting.

4. Scalability: Add plugins, AI models, or APIs as you grow.

5. Privacy & Transparency: No vendor tracking or hidden code.

How to Choose the Right Builder for You

👉 The best part? You keep your freedom, your files, and your creativity.