CSV ViewerBeta

Excel to JSON Converter

Securely convert your Excel spreadsheets into JSON format.

100% Client-Side & Secure

Visualize CSV data. Period.

Drop files to instantly visualize, chart, and export. Your records never touch a server—processed entirely in your browser.

Drag and drop file here, or click to browse

Supports standard CSV files (.csv, .txt)

Or paste raw CSV text
No CSV handy? Try a sample:

How it works

An excel to json converter helps you transform tabular spreadsheet data into a structured JSON array of objects. By first exporting your Excel file to CSV, you can easily parse and convert the data into JSON format for use in modern web and mobile applications.

Features & Capabilities

Everything you need to scan spreadsheet data

Fast parsing, smart automatic data types scanning, and multiple interactive exports.

Interactive Data Table

Sort columns instantly, query cells using the global regex search, select columns to display, and page through massive row sets at 60fps.

Auto-Generated Charts

Detects headers automatically, categorizes number formats, and builds line charts, comparison bar charts, or proportional pie charts.

Summary Metrics

Get instant statistical insights on all number columns, calculating averages, sum aggregates, variance range, standard deviation, and median rates.

Data Security & Privacy Guaranteed

Unlike other online conversion web services, this utility application processes everything client-side. The file never leaves your computer, ensuring compliance with strict security policies and protecting personal, commercial, or institutional databases from leak risks.

Technical Guide

Excel to JSON Converter: Online Usage & FAQ Guide

Learn how to get the most out of our free local-first visualizer tool for your target workflow.

Frequently Asked Questions

Is there a direct Excel to JSON converter?

Most converters work by first exporting the Excel file (.xlsx) to CSV format, and then converting the CSV text into a JSON array.