The best open source alternative to Onlook is WebStudio. If that doesn't suit you, we've compiled a ranked list of other open source Onlook alternatives to help you find a suitable replacement. Other interesting open source alternatives to Onlook are: Plasmic and Nordcraft.
Onlook alternatives are mainly Frontend Development Tools but may also be Low-Code/No-Code Platforms or Website Builders. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Onlook.
Powerful no-code platform for building responsive websites. Combines visual editing with full HTML/CSS customization.

WebStudio revolutionizes web development by bridging the gap between visual design and code-level control. This innovative platform empowers both designers and developers to create stunning, responsive websites without compromising on flexibility or performance.
Key benefits of WebStudio include:
WebStudio is perfect for freelancers, agencies, and in-house teams looking to streamline their web development process. Whether you're building a simple landing page or a complex web application, WebStudio provides the tools and flexibility to bring your vision to life efficiently and professionally.
Open-source visual editor for building websites and web apps. Connect to any data source, design custom UIs, and ship production React code without leaving your stack.

Plasmic is a visual builder and content platform for teams that want to move fast without abandoning their existing codebase. Unlike tools such as Softr or Glide that keep you inside a walled garden, Plasmic generates real React code and integrates directly into your current applications. No iframes, no lock-in.
It's built for mixed teams. Developers can register their own components as drag-and-drop building blocks, then hand the canvas over to designers, marketers, or product managers who can build and publish without filing a ticket. The result is fewer bottlenecks and a smaller backlog.
Key capabilities include:
Plasmic covers a wide range of use cases: internal tools, customer portals, SaaS products, storefronts, and content-heavy marketing sites. Tools like AppSmith and Builder overlap on internal tools, but Plasmic's Figma-to-code workflow and deep React integration make it a stronger fit for teams that also ship public-facing products.
The free plan has no time limit, and self-hosting is available for teams that need full infrastructure control.
Visual web development engine combining design and development tools. Build immersive, interactive web experiences with component-based framework, real-time collaboration, and powerful visual editor.

The world's first Web Development Engine - Nordcraft brings game development quality tooling to web development. Just as game studios rely on Unreal Engine to create AAA games, web teams can now use Nordcraft to build exceptional web applications.
Visual tools meet powerful framework - Built on web standards with a component-based architecture familiar to React, Vue, and Svelte developers. Features a lightweight 24kb runtime, server-side rendering, and a fast reactive core based on signals.
End the assembly line workflow - Skip the traditional Figma-to-Jira-to-code handoffs. Designers and developers collaborate directly in one tool, building with live data and seeing changes in real-time.
Complete development suite includes:
Open source and self-hostable - Released under Apache License 2.0, giving you full control over deployment and customization. Enterprise support available with onboarding workshops and dedicated channels.
The leading AI Code Review platform. Ship better quality code in 50% less time, with 90% fewer bugs.
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