Convert XLSX to JSON

Turn a spreadsheet into JSON for use in code and APIs.

No login requiredFiles stay private

Drop files here, or click to browse

XLSX, XLS, CSV, ODS no file size limit

Browse files

Your files never leave your device. All processing happens locally in your browser.

Open .xlsx, .xls, .csv, or .ods spreadsheets without Excel or Google Sheets. The file is parsed entirely in your browser.

JSON tips

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The JSON export uses the first row as keys, producing an array of objects per row.

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Handy for seeding a database or loading reference data into an app from a spreadsheet.

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Switch sheets and export each one as needed.

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Everything is processed in your browser.

Choose File

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Process

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Download

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Completely free — no hidden costs, ever

✓No account, email, or login required

✓Files never leave your device

✓No file size limits whatsoever

✓No watermarks on any output

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