Is this the same as pandas melt?

Yes — it is the exact equivalent of pandas.melt().

Unpivot / Melt

Transform wide CSV tables to long format. Convert column headers into row values. Processed entirely in your browser for 100%

Your files never leave your device. Processed locally. 100% private.

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Complete your task perfectly in just three straightforward steps.

Drop your wide-format CSV file.

Choose which columns are identifiers and which are values to melt.

Download the long-format CSV.

Everything you need to know about the Unpivot / Melt.

What is unpivoting?

Transforming wide tables (one column per time period) into long format (one row per observation).

Can I rename the variable and value columns?

Yes — enter custom names for the output variable and value columns.

Is my file uploaded?

No. Everything runs locally in your browser.

File size limit?

Process files up to the browser memory limit.

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