Question 1

How do I convert JSON to CSV online?

Accepted Answer

Simply paste your JSON data in the input area, select "JSON to CSV" mode, configure your options (delimiter, headers, flatten nested objects), and click "Convert to CSV". The converted CSV will appear in the output area, ready to copy or download.

Question 2

How do I convert CSV to JSON online?

Accepted Answer

Paste your CSV data in the input area, select "CSV to JSON" mode, make sure "Include Headers" is enabled if your CSV has a header row, and click "Convert to JSON". The tool will automatically detect column types and create a properly formatted JSON array.

Question 3

Can I convert JSON with nested objects to CSV?

Accepted Answer

Yes, the converter supports nested JSON objects. Enable the "Flatten Nested Objects" option to convert nested structures like {"address": {"city": "NYC"}} into flat columns like "address.city". This makes the data compatible with CSV format.

Question 4

What delimiters are supported for CSV?

Accepted Answer

The converter supports four delimiters: comma (,) which is the standard CSV delimiter, semicolon (;) commonly used in European locales, tab for TSV files, and pipe (|) for special use cases. Select your preferred delimiter before converting.

Question 5

How are arrays handled when converting JSON to CSV?

Accepted Answer

Arrays in JSON are converted to JSON string format in the CSV output. For example, ["tag1", "tag2"] becomes "[""tag1"",""tag2""]" in the CSV cell. When converting back to JSON, these array strings are automatically parsed back into proper arrays.

Question 6

Is my data secure when using this converter?

Accepted Answer

Yes, completely secure. All conversion happens in your browser using JavaScript. Your JSON and CSV data is never uploaded to any server. This makes it safe to convert sensitive data, API responses, or confidential information.

Question 7

What happens if my JSON is invalid?

Accepted Answer

The converter validates your input and shows clear error messages if the JSON is invalid. Common issues include missing quotes around keys, trailing commas, or syntax errors. The error message will help you identify and fix the problem.

Question 8

Can I convert a single JSON object instead of an array?

Accepted Answer

Yes, you can convert a single JSON object. The converter automatically wraps single objects into an array with one element, producing a CSV with a header row and one data row.

Question 9

How do I handle CSV files without headers?

Accepted Answer

Uncheck the "Include Headers" option before converting. For CSV to JSON, this will create an array of arrays instead of an array of objects. For JSON to CSV, this will output data rows without a header row.

Question 10

What is the maximum file size I can convert?

Accepted Answer

Since processing happens in your browser, there is no server-imposed limit. However, very large files (over 10MB) may take longer to process depending on your device performance. For extremely large datasets, consider splitting them into smaller chunks.

JSON to CSV / CSV to JSON Converter

Features

Perfect For

Data Migration

Spreadsheet Import

API Integration

Data Analysis

JSON CSV Converter - Frequently Asked Questions

More Developer Tools

Put your customer conversations on autopilot

AI Voice Assistant

WhatsApp Bot Builder

AI Website Chatbot

Video Localization

Call Analytics

Edesy CRM

Number Masking

Virtual Phone Number

SIP Trunking

Shopify Subscriptions