Web App Manifest Generator is a free, browser-based tool built for developers adding installability to a Progressive Web App.
Fill in your app's name, colors and display mode to get a ready-to-use manifest.json.
How to use the Web App Manifest Generator
- Fill in your app name, short name and start URL.
- Choose a display mode and pick your theme/background colors.
- Click Generate manifest.json.
- Save the result as manifest.json and link it from your HTML <head>.
Why use FreeToolsNets's Web App Manifest Generator?
- 100% free, with no usage limits and no account required.
- Everything runs locally in your browser — nothing you type is uploaded or stored on a server.
- Works on desktop, tablet and mobile in any modern browser.
- No installation, no plugins, and no ads blocking the tool itself.
- Part of FreeToolsNets's Website & SEO Tools collection.
Frequently asked questions
Do I still need icon files?
Yes — the generated manifest references /icon-192.png and /icon-512.png; add matching image files to your project.
How do I link the manifest?
Add <link rel="manifest" href="/manifest.json"> to your page's <head>.
Is this tool free to use?
Yes, completely free on FreeToolsNets, with no sign-up and no limits.
Is my data sent to a server?
No. Everything runs locally in your browser using JavaScript — nothing you enter is uploaded anywhere.
Does it work on mobile?
Yes, the widget is fully responsive and works on phones, tablets and desktops.