CSV ↔ JSON Converter
Convert data between CSV and JSON formats instantly.
What is this Tool?
CSV ↔ JSON Converter bridges the gap between spreadsheets and APIs. Typically, business data lives in Excel/CSV files, while modern web applications communicate via JSON. This tool allows seamless conversion between the two formats.
It features a smart parser that correctly handles tricky CSV edge cases like quoted strings containing commas or newlines (e.g., "New York, NY").
How to use
- Import Data: Paste your raw CSV or JSON text into the appropriate panel. You can also drag-and-drop a file.
- Convert: Click the arrow buttons (→ or ←) to transform the data.
- Validate: If there are syntax errors (like a missing comma in JSON), the tool will alert you immediately.
- Export: Copy the result to clipboard or click the Download icon to save it as a `.csv` or `.json` file.
Why do you need it?
- For Developers: Quickly mock up API responses by converting a client's spreadsheet requirements into JSON.
- For Data Analysts: Flatten nested JSON logs into CSV format to open them in Excel or Tableau for visualization.
- Privacy Focused: Handling large datasets? Don't upload them to a server. Our tool processes megabytes of data locally in seconds.
FAQ
Q. How does it handle nested JSON?
Currently, it flattens simple objects. Deeply nested arrays or objects may be stringified or omitted in CSV format to maintain a tabular structure.
Q. Is there a file size limit?
The limit depends on your browser's memory, but it generally handles files up to 10-50MB without issues since no network upload is involved.
Q. Can I convert Excel (.xlsx)?
Not directly. Please 'Save As CSV' in Excel first, then copy the text here.