Onlook

Onlook

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Onlook is an open-source, local-first desktop app that lets developers visually edit React components and writes changes back to source code in real time.

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Onlook is the fastest way for anyone to build, deploy, and iterate on websites and web apps. We built an open-source, visual editor for code that merges design, development, and AI. Since launching, Onlook hit #1 on Hacker News, was the #1 trending repo on GitHub—above DeepSeek—and has earned over 8,500 GitHub stars. Founded by Daniel Farrell, a designer of 10+ years and former Head of Growth, and Kiet Ho, an ex-Amazon and ex-ServiceNow engineer, Onlook is on a mission to finally solve the gap between design and development.

Onlook is a local-first, open-source desktop application designed for developers working with React applications. The app enables users to edit their React components directly within a visual interface, similar to tools like Figma, and instantly writes those changes back to the source code in real time. This workflow streamlines the development process by allowing designers and developers to collaborate more effectively, reducing the need to switch between code and design environments.

Key features of Onlook include the ability to visually manipulate React app elements, with all modifications reflected immediately in the underlying codebase. The app supports a seamless, local-first approach, ensuring that users maintain control over their data and workflow without reliance on cloud services unless desired. Onlook’s open-source nature provides transparency and flexibility, making it accessible for customization and integration into various development environments.

Onlook is particularly suitable for teams and individuals seeking to improve iteration speed and visual precision in React application development. By bridging the gap between design and development, Onlook helps reduce inconsistencies and accelerates the feedback loop, supporting a more efficient and collaborative app-building process.

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Website: onlook.com

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Onlook - Desktop App for Mac, Windows (PC) - WebCatalog