CSV or Excel to JSON Converter

JSON is widely used to represent structured, nested data in APIs, configurations, and logs. In contrast, formats like CSV and Excel require flat, tabular structures with simple key-value mappings.Flattening refers to the process of converting deeply nested objects into dot-notation paths (e.g., user.name, user.email).

Why Flatten JSON?

📊 Enables seamless CSV/Excel export
🧪 Helps in preprocessing for machine learning models
🛠️ Facilitates importing into relational databases
📁 Makes data readable and mappable for spreadsheets

Example: Before and After Flattening

Original JSON

{
    "user":{
        "name": "Alice",
        "email": "alice@example.com",
        "profile": {
            "age": 30,
            "location": "Seoul"
        }
    }
}

Flattened JSON

{
    "user.name": "Alice",
    "user.email": "alice@example.com",
    "user.profile.age": 30,
    "user.profile.location": "Seoul"
}

How It Works in This Tool

When you convert JSON to CSV or Excel using this tool, nested fields are automatically flattened. This ensures that each row and column remains consistent and easy to parse.

Try It Yourself