Excel to JSON
Convert .xlsx to JSON
Free forever — no sign-up, nothing uploaded. Files never leave your device.
Excel to JSON
Convert .xlsx to JSON
Drop your file here
or browse from your device
Browse filesdocument.pdf
1.2 MB
report.pdf
860 KB
100% private
Nothing is uploaded — everything runs in your browser.
Free forever
No account or payment required.
No sign-up
Open the tool and start using it right away.
Local processing
Processing time depends on your input and device.
About this tool
Turn Excel sheets into JSON objects or arrays, using the first row as keys — processed entirely client-side.
Excel to JSON converts the sheets of an Excel workbook into JavaScript Object Notation. With the header-row option, each sheet becomes an object whose keys come from the first row — ready for API payloads, frontend config, or any tooling that consumes JSON.
Multi-sheet workbooks produce a clean structure with one object per sheet, and you can toggle between raw JSON and a grid preview of your data. Since all parsing happens in the browser, spreadsheets with sensitive content never leave your machine.
Key features
Everything you get with Excel to JSON — no premium upsell.
Convert Excel sheets to JSON objects
First-row-as-header mapping, toggleable
One object per sheet in multi-sheet workbooks
Empty cells omitted for compact output
Live JSON preview and a grid view
100% client-side conversion
How to use Excel to JSON
Follow the steps below to use the tool.
- 1
Open the workbook
Upload an .xlsx file with the upload button.
- 2
Set the header option
Keep First row is header enabled to use row 1 as object keys.
- 3
Inspect the JSON
Browse the generated JSON or flip to the grid view.
- 4
Download .json
Save the JSON file to use in your project.
Still free, still private — your files never leave your device.
Launch Excel to JSONFrequently asked questions
Quick answers before you launch the tool.
Related tools
Saved you searching — here are similar utilities.