CSV ViewerBeta

Convert Excel to JSON

Transform your Excel spreadsheets into structured JSON data easily.

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

Converting Excel data to JSON is a common requirement for developers and analysts. While Excel does not natively export to JSON, you can easily save your Excel sheet as a CSV and use a converter to generate JSON. This makes it simple to integrate spreadsheet data into web applications, APIs, and databases.

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

Convert Excel to JSON: 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

How do I convert Excel to JSON?

The easiest way is to save your Excel file as a CSV (Comma Separated Values) and then use a CSV to JSON converter to structure your data.