Excel → JSON

Turn each sheet into JSON: the header row becomes the keys, numbers stay numbers and dates become ISO 8601. Runs in your browser.

Drop Excel or CSV files here, or click to choose.xlsx, .csv or .tsv · processed on your device, nothing is uploaded

First row is the headerEach row becomes an object keyed by the header. Off: arrays of cell values.Pretty printIndented, easier to read. Off: one compact line.