TRACE

TRACE is a browser-based platform for building iOS user interfaces with SwiftUI. Instead of setting up Xcode first, you can design and iterate on SwiftUI screens directly from your web browser, making it convenient for rapid UI exploration from almost any computer. TRACE also includes a community-driven component approach: you can discover SwiftUI components, share your own, and remix existing pieces to fit your app’s design.

Once your UI is ready, TRACE supports multiple ways to take it further. You can export your work as an Xcode project for continued development, export Swift files for integration into an existing codebase, or run what you’ve built directly on a device to preview and test interactions in a more realistic environment.

TRACE is especially useful for prototyping and early-stage UI construction—when you want fast feedback loops and an easy way to try variations without constantly rebuilding locally. It can also serve as a reference library of reusable SwiftUI components, helping teams or individuals standardize UI patterns and speed up development.

Note: the project is no longer actively maintained by the original team, so features, compatibility, and support may be limited over time. For customer service inquiries, the listed support email is [email protected]. Pricing information is available at https://www.trace.zip/pricing.