Package.json Generator
RunDev
Free online package.json generator - create package.json files for Node.js projects. No installation, no sign-up required. Works entirely in your browser.
Output
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Diff View
Side-by-side comparison.
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Copy as Code
Proper IDE formatting.
💰 Completely Free
No sign-up, no credit card, no hidden fees. Free to use forever.
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Validation
Catches errors with messages.
How to Use Package.json Generator
- Click Process or press Ctrl+Enter
- Check validation messages for issues
- Copy the formatted result
- Review output with syntax highlighting
Frequently Asked Questions
❓ What is package.json?
package.json is the manifest file for Node.js projects, defining metadata, dependencies, scripts, and project configuration.
❓ What's the difference between dependencies and devDependencies?
dependencies are needed in production; devDependencies are only needed during development (testing, building, linting).
❓ How do I add scripts?
Add commands under the 'scripts' field. Run them with 'npm run
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