PWA Manifest Checker & Formatter
Verify essential PWA fields like icons and start_url. Fix syntax errors and export minified JSON.
Ready: Enter JSON or JSON-like data on the left.
Supports unquoted keys, single quotes, trailing commas, etc.
Click the "Format Display" button above to view structured results
Manifest.json Validator - Optimize PWA Config Files
Ensure your PWA is installable! Validate your manifest.json for missing fields, beautify the structure, and reorder keys according to standards. Perfect for passing Lighthouse audits and improving mobile UX.