4 Best Open Source Solo Alternatives
A curated collection of the 4 best open source and self-hosted alternatives to Solo in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Solo in 2026? The top open-source alternative is Builder — Visual development platform for React, Vue, Svelte, Qwik.
Other highly rated open-source Solo alternatives include Frappe Builder, Silex and Flow.
Visual development platform for React, Vue, Svelte, Qwik
Builder.io is a visual development platform that allows developers and designers to create, edit, and deploy websites and applications without writing code. It supports modern frameworks including React, Vue, Svelte, and Qwik, making it ideal for teams looking to accelerate development while maintaining flexibility. - Drag-and-Drop Interface: Build pages visually with an intuitive drag-and-drop editor. - Multi-Framework Support: Compatible with React, Vue, Svelte, Qwik, and more. - Real-Time Collaboration: Enable teams to collaborate seamlessly on projects. - Content Management: Integrate with any CMS or use Builder.io's built-in content management system. - Performance Optimized: Deliver fast-loading, optimized websites with built-in performance tools. - Custom Components: Extend functionality with custom components and integrations. - Deployment Flexibility: Deploy to any hosting provider or use Builder.io's hosting solutions. - SEO-Friendly: Built-in tools to ensure your site is search engine optimized. Builder.io is primarily a cloud-based platform, but it offers self-hosting options for enterprise customers. The open-source core (Builder) can be self-hosted, providing full control over data and infrastructure. The platform is built with modern web technologies and supports deployment on various cloud providers.
Open source low-code website builder
Frappe Builder is a modern, open-source low-code platform designed for visually creating and publishing high-performance webpages. Built on the Frappe Framework, it combines simplicity with powerful features to streamline web development. - Drag-and-Drop Interface: Easily design webpages using a clean, focused canvas with reusable template blocks for headings, paragraphs, forms, lists, and more. - Minimalist Workspace: Features a clutter-free interface with Layers View for organization, a Properties Panel for fine-tuning typography and layout, and a Component Picker for reusable elements. - Dynamic CMS Capabilities: Fetch, loop, and display dynamic data using simple Data Scripts, perfect for blogs, product listings, portfolios, and custom layouts without heavy frameworks. - Smart Theming: Built-in light and dark mode support with automatic theme transitions, ensuring typography, surfaces, and UI elements remain perfectly aligned. - Interactive State Customization: Easily customize hover, focus, and active styles without writing CSS. - Performance Optimized: Pages built with Builder are lightning-fast, with optimized HTML/CSS rendering, minimal JavaScript, and fewer network requests. - Designer-Friendly: Skip the handoff process by importing designs directly into Builder. Frappe Builder is built on the Frappe Framework and is open-source, allowing for self-hosting on your own infrastructure. It supports deployment on platforms like Frappe Cloud, providing a scalable and customizable solution for teams of all sizes.
Free open-source visual website builder
Silex is a free, open-source, and community-owned visual website builder designed for professional web designers and no-code developers. It enables users to create fast, accessible, and SEO-optimized static websites without writing code, while supporting dynamic data integration with popular CMS platforms like WordPress, Strapi, and Supabase. - Visual Drag-and-Drop Editor: Build websites intuitively with a no-code interface. - CMS & API Integration: Connect to WordPress, Strapi, Squidex, Supabase, and custom APIs for dynamic content. - Static Site Hosting: Deploy and host static sites directly within Silex. - Template Library: Access a growing collection of professionally designed templates. - Eco-Friendly & Fast: Optimized for performance, accessibility, and sustainability. - Self-Hosting Support: Deploy Silex on your own infrastructure anytime. - Community-Driven: Maintained by a French non-profit (Silex Labs) with no investor influence. - Award-Winning: Recognized as the OW2 Best Project Award 2026 winner in the Technology category. Silex is built with modern web standards and is fully self-hostable. The project is open-source (MIT license) and can be deployed on any server or cloud platform. Documentation for self-hosting is available here. The team is also developing a desktop app with local-first, offline-first open-source AI integration for future releases.
Privacy-focused modern web browser
Flow Browser is a modern, privacy-focused web browser designed for speed, security, and seamless browsing. With a minimalist interface and powerful features, it enhances productivity while prioritizing user privacy. - Privacy-First: Built-in adblocker and tracker protection for a cleaner browsing experience. - Multiple Profiles: Separate settings and extensions for different user profiles. - Spaces & Pinned Tabs: Organize tabs into spaces and pin frequently used ones for quick access. - Command Palette: Quick access to browser features via keyboard shortcuts. - Offline Games: Built-in games for entertainment without an internet connection. - Chrome Extensions Support: Full compatibility with Chrome Web Store extensions. - Widevine Support: Stream DRM-protected content from services like Netflix. - Sleep Tabs: Reduce resource usage by putting inactive tabs to sleep. - Customizable UI: Personalize app icons and interface to fit your workflow. Flow Browser is a desktop application available for Windows, macOS, and Linux. It does not require self-hosting as it is a client-side application. The source code is open-source and available on GitHub.
About Solo
Solo is an AI-powered website builder designed for small businesses and professionals. It simplifies website creation by generating a complete site from a few simple inputs, including business type, services, and preferences.
Key Features of Solo
- AI-Powered Website Creation: Generate a professional website in minutes by answering a few questions about your business.
- Custom Domain Hosting: Connect and host a custom domain for free, with lifetime domain options available.
- SEO Optimization: Automatically adds relevant SEO keywords to help drive search traffic.
- Social Media Integration: Import reviews and showcase content from existing social platforms.
- Booking & Scheduling: Link supported calendars (Calendly, Tidycal) to enable easy client bookings.
- Mobile-Optimized Design: Websites automatically adapt to look great on all devices.
- Client Contact Forms: Receive customer messages directly to your inbox for easy follow-ups.
- Collaboration Tools: Invite editors to collaborate on design and content.
- Analytics Integration: Connect Google Analytics to track referrals, pageviews, and more.
- Payment Integration: Sell products using Stripe or PayPal payment links.
Tech / Self-Hosting
Solo is a fully managed SaaS platform with no self-hosting options. The service handles hosting, security, and updates automatically. Users can connect custom domains and manage their websites through the Solo dashboard.