Web Manifest Generator
Free online web manifest generator tool, no installation required
About Web Manifest Generator
Builds a W3C Web App Manifest (manifest.json) for Progressive Web Apps from a short form. Configure the app identity (name, short_name, description, start_url), display mode, orientation, theme/background colors with native color pickers, and icon sizes; the tool serializes everything to formatted JSON that can be copied or downloaded as manifest.json.
How to Use
1. Fill in App Name (required) plus optional Short Name, Description, and Start URL. 2. Pick Display Mode (Standalone, Fullscreen, Minimal UI, Browser) and Orientation (Any, Portrait, Landscape). 3. Set Theme Color and Background Color using the color swatches or hex inputs. 4. Enter icon sizes as a comma-separated list (default 192x192,512x512). 5. Click Generate, then Copy or Download.
Manifest Fields and Icons
The output always includes name, start_url, display, theme_color, background_color, orientation, and icons; short_name and description are added only when filled. Each icon entry is emitted as { src: "/icons/icon-<size>.png", sizes: "<size>", type: "image/png" } based on the sizes you list, so you can reference your pre-generated PNG assets.
▶What is the difference between Standalone and Minimal UI display modes?
▶Where do the icon files come from?
▶Why does the Generate button stay disabled?
▶Are short_name and description always included?
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