The best open source Website Builder alternative to Bubble is Webstudio. If that doesn't suit you, our users have ranked more than 100 alternatives to Bubble and 15 are open source Website Builders so hopefully you can find a suitable replacement. Other interesting open source Website Builder alternatives to Bubble are CerebrasCoder, Silex, Frappe Builder and Onlook.
Open source website builder that empowers creators to build highly maintainable and fast websites using modern web standards. Webstudio is an Open Source version of Webflow.
An open-source app that generates websites with Llama3.3-70b as fast as you can type. 100% free and open-source.
Create and host your websites for free, with no subscriptions, no restrictions.
Build fast secure static websites as the front-end for your CMS of choice.
Silex is does not allow to create web applications, just websites
Frappe Builder is an open-source low-code website builder built on the Frappe Framework, designed for simplicity, speed, and flexibility. Craft beautiful websites effortlessly with an intuitive visual builder.
Mars is a free dev tool for building web and mobile apps out of micro-apps combining no-code and code interfaces. MarsX is a platform that is designed specifically for startups and aims to make their journey easier, bringing more power and flexibility by allowing them to reuse...
Well, Marx still in development and is not available yet. From what I understand, it will be the result of merging of all the Mars Verse: Unicorn Platform, Fleexy, Marketsy, ... You could give a shot for free to Unicorn Platform to get the vibe. ;)
An open source Claude Artifacts app that can generate full React apps and components with Llama 3.1 405B. 100% free and open source.
Build free, responsive, websites and landing pages with an easy to use online builder. Design and publish online immediately or export the code and host it wherever you want
Grapedrop does not allow to create web applications, just websites
Open-source visual editor enabling no-code website and app development, integration with any framework, WYSIWYG editing, dynamic content features, pre-designed UI component library, collaborative workflows, and rapid publishing for teams across disciplines.
It's the only alternative I have seen which is at the same time open source, "no code" and which let you export the code generated so you are not locked in.
Allows building complete web apps visually with Python for both server and client logic, combining drag-and-drop UI design, cloud and local deployment, fast prototyping, Python ecosystem integration, and component-based workflows.
Open source website builder. Rigel is like no other website builder as it provides complete access to the generated code to the user, to edit it in live time and have complete freedom to manipulate and make changes accordingly.
United States
France
EU
India
Russia
United Kingdom
WebStudio is very impressive. As a long time power user of WordPress, then SSG like Hugo; with WebStudio I'll definitely never look back on these archaic tools. Intuitive, Fast and a must, the team are super friendly and hyper reactive on Discord ;)