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.

Input (JSON / JSON-like)Supports unquoted keys, single quotes, trailing commas, etc.

Formatted Result (Tree Structure)

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.

Common Use Cases

Backend Development

Format API response data and verify if JSON format is correct

JSON to Code

Frontend Development

Convert JSON data to TypeScript interface definitions to improve development efficiency

JSON to Code

Configuration File Management

Format configuration files such as package.json and tsconfig.json

Markdown Editor

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