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Web Manifest Generator

Build a site.webmanifest file with your app name, icons, colours and display mode.

Build a web manifest

Icons listed: 0
JSON check: valid
Each icon line takes an address, then an optional sizes value, an optional type and an optional purpose.

How to use the Web Manifest Generator

  1. Fill in the application name, the short name and the start address.
  2. Choose the display mode, the orientation and the theme colours.
  3. Copy the JSON into a file named site.webmanifest.

Features

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Frequently Asked Questions

Common questions about the free online web manifest generator.

It is a JSON file that gives a web app its name, icons, colours and display mode so it can be installed on a device.
Reference it from the head of every page with a link element that has the rel value manifest and the address of the file.
Set name for the full application name and short name for the label shown under the icon, which should stay short.
It is the page opened when someone launches the installed app, usually the root path or a dedicated app entry page.
Standalone hides the browser interface and looks like a native app. Fullscreen, minimal ui and browser are the other options.
The theme colour tints the browser bar and the background colour fills the splash screen while the application starts.
Provide at least a 192 pixel and a 512 pixel square icon in PNG format so installers can pick a suitable size.
Yes. Browsers ignore a manifest that cannot be parsed, so check the preview and keep the commas and quotes correct.

Last updated: October 10, 2026