How do I repeat a list several times?

Set the input separator and a positive copy count. Concatenate places copies after one another, while the other mode interweaves the items.

Can I reverse the repeated list copies?

Enable reverse copies to change the order of the added items. Check a small example first because reversed concatenation differs from reversing the entire final list.

Why does duplicating a list change its item boundaries?

The input separator defines the items before duplication. The output separator joins them afterward, so choose both explicitly when changing from spaces to commas.

Duplicate Text Processor

Tool workspace

Your input stays in this browser.

Needs input

You can run the tool again after any change.

Input list

List options

Split input with

Split separator

Output separator

Number of copies

Concatenate copies

Reverse copied items

Your result appears here

Transform text with Duplicate and the selected rules. Enter the text, set the transformation rules, then copy the result.

This tool runs open-source code from OmniTools (MIT License). See open-source credits.

Duplicate Text Processor repeats list items by a chosen copy count and can concatenate or interweave the copies.

red red blue blue Processing runs in the browser.

Instructions

Provide text or data for this tool.
Choose a symbol or regular-expression split mode.
Enter a positive copy count and select the desired reverse behavior.
Check the join separator because it controls the final list layout.

Example

Input: red blue

Settings: Duplicate Text Processor: Split on newline, copy 2 times, join with newline, and keep concatenation disabled.

Result: red red blue blue

Limits

Duplicate Text Processor: A negative copy count raises a validation error.
Duplicate Text Processor: Fractional counts include only a proportional part of the item list.
Duplicate Text Processor: The operation runs in the browser and does not need a network service.