Can I open the downloaded CSV file in Microsoft Excel?

Yes. The output conforms to the RFC 4180 standard, making it fully compatible with Microsoft Excel, Apple Numbers, Google Sheets, and SQL import tools.

Updated: August 2026 • Verified v1.2

JSON to CSV Spreadsheet Table Converter

Developer ToolsHigh Usage

Local Browser Execution: Your input is processed locally in your browser and is not sent to UTL servers.

AST Serialization: JSON Object Keys ➔ CSV Header Row; JSON Object Values ➔ CSV Delimited Records

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Understanding Your Results

Extracts unique keys as table column headers, escapes commas and quotation marks according to RFC 4180, and provides 1-click clipboard copy and .csv file download.

Practical Guidance & Next Steps

Processes data entirely in browser memory, making it safe for confidential user records or customer exports.

What is this?

A data formatting utility that transforms JSON payloads into clean CSV tables for spreadsheet and database ingestion.

How does it work?

1. Paste your JSON array of objects into the editor. 2. Preview the converted CSV table. 3. Copy the CSV text or download the `.csv` spreadsheet file in 1 click.