Manifest Web App Builder
Work with manifest web app right in the browser — adjust the inputs, watch the preview update, and copy the result.
Work with manifest web app, interactively
Work with manifest web app without leaving the page or wiring up a build step. Change the inputs and the preview updates immediately, so you can dial in exactly what you want and copy the result straight into your project.
Private and in your browser
Everything runs locally in your browser. Your input is never uploaded and no account is required, so the tool stays fast and works even offline. The copy and download buttons always use the current result shown in the output panel.
Frequently Asked Questions
What does the Manifest Web App do?
It lets you work with manifest web app interactively: edit the controls, see the result update live, and copy or download the output when it looks right.
Does it send my data anywhere?
No. The Manifest Web App runs entirely in your browser — your input is never uploaded, and it keeps working offline once the page has loaded.
What should I keep in mind?
Use the output as a practical starting point and review it for your specific case before relying on it.
Practical utilities for front-end design and implementation work.