CSV to JSON Converter
Convert CSV data to JSON format instantly — paste, convert, copy. No signup required.
No signup requiredAll processing happens in your browser
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How to Convert CSV to JSON
1
Paste or upload your CSV data
Copy your CSV data from a spreadsheet or text file and paste it into the input area. You can also drag and drop a .csv file.
2
Choose your options
Select the delimiter (comma, tab, semicolon, or pipe) and output format that best fits your needs.
3
Click Convert
Hit the Convert button to instantly transform your CSV into clean, formatted JSON.
4
Copy or download the result
Copy the JSON to your clipboard with one click, or download it as a .json file.
Frequently Asked Questions
What is CSV to JSON conversion?
CSV (Comma-Separated Values) to JSON (JavaScript Object Notation) conversion transforms tabular data into a structured, hierarchical format widely used in web applications, APIs, and databases.
Is my data safe?
Yes. All conversion happens entirely in your browser. No data is sent to any server. Your files never leave your device.
What CSV delimiters are supported?
We support comma (,), tab, semicolon (;), and pipe (|) delimiters. The tool also auto-detects the delimiter in most cases.
Can I convert large CSV files?
Yes. Since the conversion runs in your browser, it can handle files up to several megabytes. For extremely large files (100MB+), consider using a command-line tool.
What output formats are available?
Three formats: Array of Objects (most common for APIs), Array of Arrays (compact), and Column Arrays (grouped by column name).
Can I convert JSON back to CSV?
Yes! Click the 'Switch to JSON → CSV' button to reverse the conversion direction.