Word Scrambler

Scrambled words are good for classroom puzzles, spelling practice, party games and for seeing a famous reading effect for yourself: most people can still read a sentence when only the inner letters of each word are mixed up. This tool shuffles the letters of every word, either keeping the first and last letter in place or mixing the whole word, and leaves punctuation, spaces, numbers and capital positions untouched. Worksheet mode lists each word once, fully scrambled, with an answer key.

How to use this tool

1. Type or paste your text or word list.
2. Choose inner-letter scrambling or whole-word scrambling, and the shortest word to change.
3. Tick “worksheet” to get a numbered puzzle list with answers.
4. Leave the seed empty for a new mix each time, or enter one to get the same puzzle again.

Formula

Scrambled word = letters at the chosen positions shuffled with Fisher–Yates; retried until the word differs from the original

Words are found with the browser’s Unicode word rules, so contractions such as “don’t” and letters from any alphabet are handled. Only letters move; apostrophes, hyphens and digits keep their positions, and a capital letter stays at the same position (Hello → Hlelo, not hlelO). A word whose movable letters are all the same, such as “bee” in inner mode, cannot change and is left alone. Random numbers come from the browser’s secure generator, or from a seeded generator when you give a seed.

Example

In inner mode, “Scrambled words are surprisingly easy to read” might become “Sacrbmled wodrs are slgnsripuiry esay to raed”: the first and last letters stay, “are” and “to” are shorter than four letters and stay as they are, and the result is still readable. A four-letter word like “abcd” can only become acbd, because its two inner letters have one other order.