AnsRioSmart tools. Clear answers.
Home / Developer & data / Transpose CSV rows and columns
Developer & data

Transpose CSV rows and columns

Transpose CSV rows and columns: Treat every CSV row as data and swap row/column indices: output[j][i]=input[i][j].

Make it your own ⌁ Runs on your device

Your inputs are processed locally and are not added to analytics or saved history.

YOUR RESULT
Ready when you are.

Enter your values, then select Transpose CSV.

How it works

Treat every CSV row as data and swap row/column indices: output[j][i]=input[i][j].

Input definitions

Rectangular CSV
Plain text; maximum 200,000 characters.

A worked example

Rectangular CSV
name,Ada,Lin score,10,20
3 rows × 2 columns

Assumptions & limits

Plain text on your device, with no remote fetch. CSV input is comma-separated with unique nonempty headers, at most 1,000 rows and 50 columns; downloads escape spreadsheet formula prefixes. Transpose is limited to 200 rows; the shared CSV parser allows at most 50 input columns.

Sources & review

Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.

Method updated 2026-10-17. Content checked against the stated method and examples. Our verification approach.

Common questions

Is the first CSV row treated as a header during transpose?

No. Every cell participates in the transpose, including labels. A two-row, three-column table becomes three rows and two columns.

How does Transpose CSV rows and columns work?

Treat every CSV row as data and swap row/column indices: output[j][i]=input[i][j].

What are the limits of Transpose CSV rows and columns?

Plain text on your device, with no remote fetch. CSV input is comma-separated with unique nonempty headers, at most 1,000 rows and 50 columns; downloads escape spreadsheet formula prefixes. Transpose is limited to 200 rows; the shared CSV parser allows at most 50 input columns.

How do I keep the full worksheet?

Run the tool and choose Download file. The on-page table is a preview and may show only the first 20 rows; the downloaded file contains the full result. CSV downloads escape spreadsheet formula prefixes. Inputs and files are processed on your device.

↗
Made for the question in front of you.

No sign-up. Tool inputs stay on your device.

How we work