JSON to CSV Converter — Free Online Tool | GadgetSurge

About JSON to CSV Converter

Converting JSON to CSV is essential when you need to analyse API response data in a spreadsheet, export application data for reporting, or prepare JSON data for tools that only accept tabular input. This converter handles the transformation instantly.

The converter expects a JSON array of objects where each object has the same set of keys. The keys become CSV column headers and each object becomes a row. Nested objects are flattened where possible.

This is the reverse operation of the CSV to JSON converter. Together they let you move data freely between the tabular world (spreadsheets, databases) and the structured world (APIs, web applications).

All processing runs in your browser — your JSON data never leaves your device, making it safe to convert sensitive or proprietary data.

How to Use JSON to CSV Converter

1. Paste your JSON array into the input field. The JSON must be an array of objects with consistent keys.
2. Click "Convert" to generate the CSV output.
3. The first row of the CSV will contain the keys from your JSON objects as column headers.
4. Copy the CSV or download it as a .csv file to open in Excel or Google Sheets.

Common Use Cases

• API data to spreadsheet: Convert JSON responses from REST APIs into CSV to analyse data in Excel or Google Sheets.
• Database export for reporting: Convert JSON database query results to CSV for business reports and stakeholder dashboards.
• Data sharing with non-technical teams: Convert JSON data to CSV so business stakeholders can work with it in familiar spreadsheet tools.
• Bulk import preparation: Convert JSON datasets to CSV format for bulk import into CRMs, email platforms, or other tools that accept CSV.
• Log analysis: Convert JSON-formatted application logs to CSV for analysis in spreadsheet tools.

Frequently Asked Questions

What JSON structure does this converter accept?

The converter expects a JSON array of objects: [{...}, {...}, ...]. Each object should have the same keys. If objects have different keys, missing values will be blank in the output. Nested objects and arrays may be serialised as strings.

Can I convert a single JSON object (not an array)?

A single object will be converted to a two-row CSV — one header row and one data row. For multi-row output, your JSON should be an array of objects.

How are nested objects handled?

Nested objects are typically serialised as JSON strings within the CSV cell. If you need nested data flattened into separate columns (e.g., address.city becomes a separate column), you will need to flatten the JSON first before converting.

Will the CSV open correctly in Excel?

Yes. The output uses standard comma-separated format with double-quote escaping for values that contain commas or newlines. It is compatible with Excel, Google Sheets, LibreOffice Calc, and any other standard CSV reader.

What encoding is used for the CSV output?

The output is UTF-8 encoded, which handles all international characters, emojis, and special symbols. If Excel shows garbled characters when opening the file, select "UTF-8" as the encoding when importing (File → Import → CSV).