JSON key compare CLI

A simple, fast, and lightweight CLI tool to recursively compare JSON files and identify missing keys. Built with Bun.

Features

• 🔍 Recursive Comparison: deeply compares nested objects found in your JSON files.
• 📂 Multi-file Support: Compare a base JSON file against multiple other files at once.
• ⚡ Fast: Built on the recursive logic using the fast Bun runtime.
• 🎯 Precise Reporting: specific output pinpointing exactly which keys are missing (e.g., config.database.host).
• ✨ Zero Dependencies: Lightweight and efficient.

Usage

You can run this tool directly using bun.

Installation

Install globally with bun:

bun add -g json-key-compare

Basic Usage

Compare two files:

json-key-compare base.json target.json

Multiple Files

Compare a base file against multiple target files:

json-key-compare en.json fr.json es.json

Example Output

📄 fr.json
   ✗ 2 missing key(s):
     • common.buttons.delete
     • pages.settings.theme

📄 es.json
   ✓ No missing keys

Development

To install dependencies:

bun install

To run tests:

bun test

License

MIT