How do I shuffle text lines?

Select 'Shuffle (randomise)' and click Run. The tool uses a Fisher-Yates shuffle to randomly reorder all lines in your text.

How do I add a prefix to every line?

Select 'Add prefix / suffix', enter your prefix text, leave the suffix blank, and click Run. Every line will have the prefix prepended to it.

Text Line Tools — Shuffle, Reverse, Join, Rotate

Text line manipulation is a fundamental part of data processing. This tool provides a collection of the most common line-level text operations — shuffling lists, reversing order, joining lines, rotating lists, and adding HTML or CSV prefixes and suffixes to each line.

Available Operations

Shuffle: Randomly reorder all lines using a Fisher-Yates shuffle
Reverse: Flip the order of all lines (last line becomes first)
Reverse text: Reverse the characters on each individual line
Join lines: Merge all lines into a single line with a custom separator
Rotate left/right: Move the first/last line to the other end of the list
Add prefix/suffix: Prepend and/or append text to every line (e.g., add HTML tags)
Number lines: Add sequential line numbers with a configurable separator

Frequently Asked Questions

How do I create an HTML list from plain text?

Paste your items one per line, select "Add prefix/suffix", set prefix to <li> and suffix to </li>, then click Run. The output will be ready to paste inside <ul> or <ol> tags.

Is the shuffle truly random?

The shuffle uses Math.random() via the Fisher-Yates algorithm, which provides uniform randomness. It is suitable for most purposes but is not cryptographically secure — don't use it for lottery draws or security-sensitive applications.

Text Line Tools online

Shuffle, reverse, join, rotate, prefix, and suffix text lines — runs in your browser

Available Operations

Frequently Asked Questions

How do I create an HTML list from plain text?

Is the shuffle truly random?