Convert List to Columns

Convert list items into a column-based layout.

Input
List Item Separator
Split list items by a symbol.
Split list items by a regex.
Input Separator. Enter split character or regex.
Remove empty list items before formatting.
Column Layout
Number of columns.
Column Separator.
Fill missing cells with a custom symbol.
Padding Symbol.
Arrangement
Fill columns from top to bottom.
Fill rows from left to right.
Column Alignment
Align columns by padding items.
Alignment for padded columns.
Output

What happens when you run this tool

Convert list items into a column-based layout.

The main value here is precision. You can inspect the transformation before the content goes into code, documentation, a spreadsheet, or another parser.

How the conversion reshapes the data

Convert List to Columns changes data from List into Columns. That is more than a cosmetic rewrite. Field layout, quoting, nesting, and even type representation can shift because the destination format has different rules and limits.

List tools usually treat each line or separator-delimited value as a discrete item, so separators and blanks affect the result.

This tool is deterministic: the same input and the same settings produce the same output every time. All processing happens in your browser, so your input stays on your device during the transformation.

Practical situations where it helps

Format lists for display.

Create table-like outputs.

Align list items into columns.

Examples

Quick before and after

Input
Convert List to Columns input:
Email: john.doe@example.com
Status: active

Output
Convert List to Columns output:
Email: john.doe@example.com
Status: active

Input expectations and common surprises

Conversion tools are constrained by the destination format. If the source can express nesting, comments, repeated keys, or mixed data types more richly than the target, the output may need to flatten or reinterpret part of the structure.

For deterministic tools, the same input and the same settings should reproduce the same result. If not, the input likely changed in a small but meaningful way.

Frequently Asked Questions

Does conversion only change formatting, or can structure change too?

Structure can change as well. Conversions often have to adapt the source to fit what the destination format can represent.

What if the target format cannot represent everything in the source?

Some tools have to flatten, serialize, or simplify parts of the source structure. Review the output before treating the conversion as lossless.

Will the same input and settings always produce the same output?

Yes. This tool is deterministic, so repeating the same input with the same settings produces the same result.

Does this tool process data in the browser or on a server?

This tool runs locally in your browser, so your input is processed on your device rather than being uploaded for server-side conversion.