Flip your CSV data so rows become columns and columns become rows. Everything runs in your browser — your data never leaves your device.
Transposed CSV will appear here...Load CSV and it transposes automatically
Three simple steps to transpose your CSV data.
Paste your CSV data directly into the input area or upload a file. Columns are auto-detected.
Rows become columns and columns become rows. Toggle whether the first row serves as headers.
Preview the transposed data and copy to clipboard or download as a new CSV file.
A CSV transpose tool rotates a matrix of data so that rows become columns and columns become rows. It's the equivalent of a matrix transpose in linear algebra applied to tabular data. Transposing is useful when your data is structured horizontally (fields in rows) but you need it vertically (fields in columns), or vice versa.
This tool runs entirely in your browser with no data upload, making it ideal for sensitive datasets. The first-row-as-header option ensures column names are preserved correctly after the transpose.
Reshape data layouts
Convert horizontal records to vertical ones or restructure data for different tools.
Prepare for import
Some tools expect data in a specific row/column orientation that differs from your source.
Pivot reports
Transform summary rows into columns for better comparison and charting.
Save time
No need to open a spreadsheet — transpose right in your browser instantly.
Transposing swaps rows and columns. If your CSV has 3 rows and 5 columns, the transposed output will have 5 rows and 3 columns. Each original row becomes a column in the new output.
When enabled, the first row of your CSV is treated as column headers. During transpose, these headers become the first column of the output. When disabled, all rows are treated as data rows.
Yes. If rows have different numbers of columns, shorter rows are padded with empty cells so the resulting matrix is rectangular. This ensures the transposed output is valid CSV.
Yes. Everything runs in your browser. Your file is never uploaded to any server. You can verify this by disconnecting from the internet and using the tool offline.
For a complete CSV workflow, explore our other free tools:
All processing happens in your browser. Your data never leaves your device.