JSON to CSV

Convert JSON arrays or JSON-Lines files to flat-structure CSV. Securely process files in your browser memory with zero data t

Your files never leave your device. Processed locally. 100% private.

Unlocking Tool Engine...

How To Use JSON to CSV

Complete your task perfectly in just three straightforward steps.

1

Upload JSON

Drop the JSON file or paste JSON.

2

Select Fields

Choose fields to export and set column order.

3

Download

Download the CSV file.

FAQ

Everything you need to know about the JSON to CSV.

What JSON structures are supported?

Arrays of objects, and nested objects (flattened with dot notation).

How are arrays inside objects handled?

Arrays are serialized as JSON strings in their cell.

Is my file uploaded?

No. Everything runs locally in your browser.

File size limit?

Free up to 10 MB, Pro up to 200 MB.

Can I choose which JSON fields become columns?

Yes — deselect fields you do not need before exporting.

How is this different from online JSON-to-CSV tools like ConvertCSV or JSON2CSV?

Most online converters upload your file to a server for processing, which is a privacy risk for sensitive data. Refinata processes everything locally. Additionally, most tools fail on deeply nested JSON or API wrapper objects — Refinata's auto-detection handles both gracefully. The live table preview also lets you verify the output before downloading, which other tools lack.

Related Tools

Continue working with our suite of free data utilities.

CSV to PDF

NEW

Convert CSV data to a formatted PDF table. Supports custom headers and styling. Fast, private, and secure browser-based tool

Open tool

JSON to Excel

NEW

Instantly convert JSON responses or arrays into native Excel (.xlsx) files. Automatically flattens nested objects and formats

Open tool

JSONL to CSV

NEW

Convert JSON Lines files to CSV. Nested objects are flattened automatically. The safest way to process sensitive data with ze

Open tool

Schema DDL Generator

NEW

Auto-generate CREATE TABLE SQL DDL from a CSV file structure. Processed entirely in your browser for 100% data privacy and ze

Open tool

CSV to Markdown

Convert CSV to Markdown table syntax for documentation and README files. Fast, private, and secure browser-based tool with no

Open tool

PDF to Images

NEW

Convert each PDF page to a high-resolution PNG or JPG image. Fast, private, and secure browser-based tool with no signups or

Open tool