Convert JSON to XLSX
Convert JSON records into a genuine Excel XLSX workbook privately in your browser.
Drop your JSON files here
Up to 50MB per file.
Conversion Settings
Files never leave your browser
How to Convert
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Upload your JSON files
Drag and drop or select JSON files from your device. You can upload multiple files at once.
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Configure Output
Start the conversion. Crest Convert will prepare the XLSX file using the appropriate format engine.
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Download XLSX files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert JSON to XLSX?
Converting from JSON to XLSX gives you the specific advantages of the XLSX format - whether that's better compression, wider compatibility, or special features like transparency support.
Our converter is fast, secure, and completely free - no sign-up required.
Frequently Asked Questions
Is this conversion safe?
Yes. This conversion runs entirely in your browser - your files are not uploaded to any server.
Will I lose quality?
Object keys become spreadsheet columns and nested keys are flattened with dot notation.
Can I batch convert?
Yes! You can upload multiple JSON files at once and convert them all to XLSX simultaneously. Download them individually or as a ZIP archive.
Is there a file size limit?
Since this conversion happens in your browser, the limit depends on your device's memory. Most devices handle files up to 50MB without issues.
Why convert JSON to XLSX?
Converting JSON to XLSX gives you broader compatibility and flexibility. XLSX may offer better compression, wider software support, or features like transparency that JSON doesn't support.