Validate package.json
Validate package.json files before committing to ensure they're properly formatted.
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💡 Paste your JSON and it will be validated automatically. The validator checks for syntax errors and provides helpful suggestions to fix common issues.
Code Examples
Here's how to achieve this in different programming languages:
1// Validate JSON in JavaScript2function validateJson(jsonString) {3 try {4 JSON.parse(jsonString);5 return { valid: true, error: null };6 } catch (e) {7 return { valid: false, error: e.message };8 }9}1011const input = `{"name": "my-app", "version": "1.0.0", "dependencies": {"react": "^18.0.0"}, "scripts": {"dev": "next dev"}}`;12const result = validateJson(input);13console.log(result.valid ? '✅ Valid JSON' : '❌ ' + result.error);
More JSON Examples
Validate JSON Object
Example of validating a simple JSON object with key-value pairs.
Trailing Comma Error
Common JSON error: trailing commas are not allowed in JSON.
Single Quote Error
JSON requires double quotes for strings, not single quotes.
Validate Nested JSON
Validate complex nested JSON with objects and arrays.
Validate API Response
Validate a typical REST API response with nested data.