## JSON vs CSV at a Glance
| Feature | JSON | CSV |
|———|——|—–|
| Nested data | β
Yes | β Flat only |
| File size | Larger | Compact |
| Excel compatible | β Not directly | β
Yes |
| JavaScript native | β
Yes | Needs parsing |
| Database import | Varies | β
Most DBs |
## When to Use JSON
JSON is the right choice when your data has **nested or hierarchical structure**, you’re building a **REST API**, or you’re storing **configuration**.
## When to Use CSV
CSV wins when your data is purely **flat/tabular**, you need to open it in **Excel or Google Sheets**, or you’re doing a **database import**.
## Converting Between Formats
**JSON to CSV:** Paste your JSON array and download a clean CSV.
**CSV to JSON:** Upload or paste your CSV and get a JSON array.
**JSON to XML:** For SOAP APIs and legacy systems.