Web App Manifest Studio
Build or validate a web app manifest and preview its launch identity.
Private by design
Your inputs stay on your device and are not sent to our servers. Optional usage analytics does not receive your files or tool inputs.
How to use Web App Manifest Studio
- Add your source or choose Try sample; Undo sample restores previous inputs.
- Choose the workflow and review results, diagnostics and method notes.
- Download the useful artifact, complete records or a summary report.
What are the limits of Web App Manifest Studio?
Generates a webmanifest JSON file; does not install a service worker or claim installability. Validates same-origin start/id/scope relationships and icon sizes/purposes. Icon paths must point to real deployed files; use the existing Favicon Generator to make image assets. Colors affect the exported manifest, independently of site theme. Text input: 5 MB total. XML external entities and includes are disabled. No automatic local storage. Reports summarize the selected result; CSV/JSON retain complete records.