Onlook is a design tool that enables designers to visually edit React websites or web applications and synchronize those changes back to the codebase in real-time. It offers a Figma-style interface, allowing users to adjust layouts, change colors, modify text, and more, all without requiring additional setup.

Currently in its alpha release, Onlook is available as a desktop application for both Apple Silicon and Windows platforms.
One of Onlook's standout features app is its integration of AI capabilities, which assist users in building, designing, and experimenting with their ideas, making front-end development more interactive.
The tool also emphasizes code ownership and security, ensuring that all code remains on the user's device and integrates seamlessly with existing build processes.
Key Features of Onlook
Visual Editing for React Apps
- Allows designers to visually modify React websites and applications.
- Works similarly to Figma but directly on live React projects.
Real-Time Code Synchronization
- Edits made in the Onlook interface update the actual codebase in real-time.
- No need for manual adjustments between design and development.
AI-Powered Assistance
- AI helps with designing, building, and experimenting with UI elements.
- Speeds up the iteration process by offering intelligent suggestions.
No Additional Setup Required
- Instantly works on existing React applications.
- No need for extra plugins or integrations.
Code Ownership and Security
- All changes stay on the user’s local device.
- Ensures full control over the codebase without cloud-based dependencies.
Cross-Platform Availability
- Supports Apple Silicon and Windows desktop applications.
Developer & Designer Collaboration
- Bridges the gap between designers and developers.
- Helps teams work together efficiently without technical bottlenecks.
Live Preview & Editing
- Provides an interactive way to tweak layouts, colors, text, and components.
- Instantly see UI changes without rebuilding the project.
Onlook has garnered positive attention from the design and development community. For instance, Adam Argyle, a Chrome CSS Developer Advocate at Google, commented that it's “lookin' rad!” Additionally, Aaron Epstein, co-founder of Creative Market, described it as a “promising new tool for designers,” highlighting its Figma-like front end for visual editing of React applications.