manifest.webmanifest generator

About web app manifest

The manifest.webmanifest (or manifest.json) describes how your web app should behave when installed on a device. It contains information such as the app name, icons, theme and background colors, and how the app should be displayed.

Why it matters

• Enables users to install your web app to their home screen.
• Controls the launch experience (standalone, fullscreen, etc.).
• Provides icons for different device sizes and resolutions.

Best practices

• Provide multiple icon sizes (e.g., 192x192, 512x512) and use PNG or WebP formats.
• Keep start_url and scope consistent with your app routing.
• Define theme_color and background_color to match your branding.
• Serve the manifest from the root or reference it in your HTML head: <link rel="manifest" href="/manifest.webmanifest">

Tip: Use a service worker in combination with a manifest to enable offline installable experiences.