Excel (XLSX) to JSON Converter
Free, private and instant. Your files stay on your device.
How to convert Excel (XLSX) to JSON
- Choose or drop your Excel (XLSX) files.
- Click Convert.
- Download your JSON files.
Why convert Excel (XLSX) to JSON?
JSON is what web APIs and modern apps expect, so converting lets you feed your data straight into code.
About the formats
Excel (XLSX). XLSX is the Microsoft Excel workbook format with sheets, formulas and formatting.
JSON. JSON is the standard data format of web APIs and modern software. It stores structured, nested data as readable text.
Private by design
Most online converters upload your files to a remote server. LocalConvert does the work in your browser, so photos, contracts and spreadsheets never leave your device. There is nothing to install and it works on Windows, Mac, Android and iPhone.
Frequently asked questions
Is this Excel (XLSX) to JSON converter free?
Yes. There are no sign-ups, watermarks or daily limits. Convert as many files as you like.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using your own device, so your files never leave your computer or phone. That also makes it fast, and it works for private documents.
Is there a file size limit?
There is no fixed limit. The practical limit is your device memory. Files up to a few hundred megabytes usually work fine on a modern laptop.