csv
→json
Convert CSV to JSON — Free, Fast & Private
Convert CSV spreadsheet data to structured JSON. Auto-detects headers, data types, and delimiters. Perfect for API development and data processing.
Auto-detect headersType inferenceNo file limitInstant conversion
How to Convert CSV to JSON
- 1
Upload your CSV file or paste CSV data.
- 2
The converter auto-detects headers and types. Click Convert.
- 3
Download your JSON for APIs or data processing.
CSV vs JSON — Format Comparison
| Feature | CSV | JSON |
|---|---|---|
| Format | Tabular | Hierarchical |
| Use | Spreadsheets | APIs, code |
| Structure | Flat rows | Objects, arrays |
| Best for | Analysis | Development |
| Tools | Excel, Sheets | APIs, apps |
When to Convert CSV to JSON
- •API development
- •Importing spreadsheet data into apps
- •Data pipelines
- •Config from spreadsheets
Frequently Asked Questions
Does it auto-detect delimiters?
Yes. Handles comma, semicolon, and tab-separated values automatically.
What about CSV with headers?
Headers become JSON keys. Each row becomes an object.
Can I convert Excel exports?
Yes. Export from Excel as CSV, then convert to JSON. Works with any CSV format.
Is the JSON valid?
Yes. Output is standard JSON, ready for APIs or programming.