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Convertisseur Excel en JSON

Excel en JSON

Fonctionne dans votre navigateur · Aucun envoi

L’outil et les instructions de cette page sont en anglais pour le moment. Il fonctionne de la même façon : tout se passe dans votre navigateur.

Drag & drop an Excel file here

or

Excel .xlsx or .xlsm, or OpenDocument .ods (LibreOffice)

Your files stay on your device. Nothing is uploaded.

  • Rien ne quitte votre appareil
  • Aucune limite de taille imposée par un serveur
  • Sans inscription, sans filigrane
  • Gratuit

How to convert Excel to JSON

  1. Choose an .xlsx, .xlsm or .ods file.
  2. Pick the sheet and the JSON layout.
  3. Download the JSON, or copy it.

JSON layouts

  • List of objects: the first row gives the names, for example [{"Name": "Ann", "Age": 34}].
  • List of rows: every row as an array, including the first.
  • Empty first-row cells are named "Column 3" and so on; repeated names get "(2)".

Values

  • Numbers stay numbers, TRUE/FALSE become true/false, empty cells become null.
  • Dates become text like "2024-03-01".
  • Values are what the spreadsheet app last calculated.

Your spreadsheet stays on your device

Everything happens in your browser. Your spreadsheet is never uploaded, and this site's security policy blocks the page from sending files anywhere.

Questions fréquentes

Can it read Google Sheets?

Download the sheet from Google Sheets as .xlsx (File › Download), then open that file here.

Is my spreadsheet uploaded?

No. It is processed in your browser and never sent anywhere.