Problem

Onlook addresses the persistent gap between visual design and software implementation. Designers can create polished mockups, but turning those designs into working interfaces often requires engineering handoffs, repeated interpretation, and maintenance of a separate design system. The resulting pain is slower iteration, engineering bandwidth spent on UI translation, and drift between the design and the shipped product. Onlook’s core economic proposition is to reduce that friction by letting designers and product managers work directly with the real code and components that constitute the product.

The main use case is building, prototyping, and iterating on websites or web apps without stopping at a static mockup. A designer can work with a team’s existing React components and design tokens, refine the rendered product visually, and move toward a deployable result while keeping engineers’ codebase as the source of truth.

Product / Service

Onlook is an open-source, visual-first code editor positioned as a “Cursor for Designers,” with a hosted team product in closed beta. Users can import an existing React project or start a new one, edit components directly in a browser-like canvas, and use drag-and-drop and visual styling controls while Onlook writes the changes back to the actual code. Its AI assistant can generate or modify code, and the product is designed to work with common React stacks including Next.js, Vite, Tailwind CSS, Storybook, and shadcn/ui.

The key benefit is that the canvas is not a throwaway design layer: the real React components, code, and design tokens remain the source of truth. Onlook supports prototyping, Figma-to-React workflows, real-time previews, collaboration, and deployment. The self-hosted version is free under its open-source model, while the hosted version is offered to teams through custom pricing and currently requires a demo or beta access.

Market

Onlook competes in the intersection of AI developer tools, visual web development, design-to-code, and collaborative product-design software. Its closest alternatives span both visual builders and prompt-to-app products, including Webflow, Figma Make, Builder.io, Locofy, v0, Bolt.new, Lovable, and Replit Agent. Onlook differentiates itself by editing an existing codebase and real component system rather than primarily generating a separate artifact that developers later have to copy, reconcile, or maintain.

The company has meaningful early traction but remains at an early commercial stage. It is an active YC Winter 2025 company; YC reports that its open-source editor reached number one on Hacker News and number one among trending GitHub repositories, while the current repository snapshot shows 26,358 stars and 2,060 forks under an Apache-2.0 license. Onlook also lists early product partners and describes its hosted offering as closed beta with custom team pricing. PitchBook reports a $500,000 funding total and classifies the company as generating revenue, but the available evidence does not establish a revenue figure or scaled commercial adoption, so the best characterization is early monetization and strong developer-community traction rather than a mature SaaS business.