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shuffle-letters

Shuffling letters randomly permutes the characters of a word or phrase — turning "hello" into "olehl" or "elhlo". Useful for generating random-looking strings, anagram puzzle prep, classroom word games, and text obfuscation. The ZTools Shuffle Letters tool runs Fisher-Yates on the character array (preserving multiplicities) and supports preserving spaces, preserving capitalisation, and per-word shuffling vs whole-string shuffling.

Use cases​

Make a quick anagram puzzle​

Take a word, shuffle, and see if you can solve back. Educational for kids.

Obfuscate text for "before / after" reveal​

Shuffled text in a graphic that the reader can rearrange to discover the message.

Random-looking strings​

"hello" → "lhleo" — feels human-typed but isn't a real word.

Test typo-tolerance algorithms​

Shuffled words test whether your fuzzy search / autocomplete handles letter scrambles.

How it works​

  1. Paste text — Word, phrase, sentence.
  2. Pick mode — Per-word (each word shuffled independently) or whole-string (all letters mixed).
  3. Configure — Preserve spaces (default for per-word), preserve capitalisation (positions or letters).
  4. Shuffle — Fisher-Yates on the character array.

Examples​

Input: "hello"

Output: One shuffle: "olehl". Another: "elhlo". 5! = 120 total permutations.

Input: "Hello World", per-word

Output: Each word shuffled independently: e.g. "lloeH dlroW". Spaces preserved.

Input: Same input, whole-string

Output: All 11 letters mixed: e.g. "drlowllHeo". No word boundaries.

Frequently asked questions​

Will I get the same letters back?

Yes — multiplicities preserved. "hello" has two L's; shuffled output also has two L's.

Does shuffling preserve readability?

"Cambridge effect": often yes for short words because we read by overall shape. "hello" / "olehl" — both readable as "hello" with effort.

Can I lock first / last letter?

Yes — the "Cambridge effect" mode locks first and last letters and shuffles only the interior. Demonstrates how readable shuffled text can be.

Privacy?

All in browser.

Tips​

  • For anagram puzzles, shuffle until the result is non-obvious — sometimes Fisher-Yates returns the original.
  • For "Cambridge effect" demos, lock first / last letter — shows how robust reading is.
  • For testing typo-tolerance, shuffle one or two letters only (not the whole word) — closer to real typos.

Try it now​

The full shuffle-letters runs in your browser at https://ztools.zaions.com/shuffle-letters — no signup, no upload, no data leaves your device.

Open the tool ↗

Last updated: 2026-05-06 · Author: Ahsan Mahmood · Edit this page on GitHub