Vowel Generator
Random draws from the five English vowels — A, E, I, O, U — each exactly equally likely. Pick how many, choose the case, optionally forbid repeats. Everything runs in your browser.
Generate random vowels
The pool is 5 letters: A E I O U. Each draw is uniform.
Where a random vowel earns its keep
Vowel draws come up constantly in classrooms and word games. Phonics and spelling drills use them to pick which vowel sound a round practices; letter-tile word games often let players swap for a guaranteed vowel; fill-in-the-blank worksheets need a fair way to vary the missing letter; and "make a word containing this vowel" is a reliable warm-up for any age group. Because each of the five is exactly equally likely, no student can complain that the tool favors E — over many rounds, each vowel appears about a fifth of the time, though real randomness happily produces streaks of the same vowel along the way.
Drawing without repeats
With "no repeats" on, the generator samples without replacement — a drawn vowel leaves the pool. Draw all 5 that way and you get a random ordering of the whole set, such as A I U E O (that example is a build-time draw by the same tested engine, using a fixed byte script so the page is reproducible). This is the honest version of "shuffle the vowels": every ordering of 5 letters is equally likely, and asking for a sixth unique vowel produces a clear error rather than a quiet repeat.
Need consonants, or a mixed pool?
The Consonant Generator draws from the other 21 letters, and the main generator composes filters — for instance vowels with E excluded, or a custom pool of exactly the letters your ruleset allows. For whole random strings, use the Random Letter Sequence tool, and for Greek vowels (α ε η ι ο υ ω) see the Greek Letter Generator.
Frequently asked questions
Which letters count as vowels here?
The five standard English vowel letters: A, E, I, O, U. Y is treated as a consonant on this site — it is sometimes a vowel sound in words, but as a letter it is conventionally grouped with the consonants, and the consonant generator includes it. If your game rules differ, the main generator’s include list lets you build any pool you want.
Is each vowel equally likely?
Yes — exactly 1 in 5 per draw. The engine draws random bytes from your browser’s cryptographic source and rejection-samples them onto the 5-letter pool, so there is no bias toward any vowel and no weighting by how common vowels are in English words.
Can I draw all five vowels in random order?
Yes: set the count to 5 and switch on "no repeats". The result is a uniformly random ordering of A E I O U — useful for turn orders and worksheet variety. Asking for 6 or more unique vowels is refused with an explanation, because a 5-letter pool cannot supply them.
Is anything sent to a server?
No. Draws happen locally in your browser and are never transmitted, logged, or stored.
Uniform means uniform: each vowel is drawn with equal probability — never weighted by English usage. Draws happen locally in your browser and are never transmitted. Details on the methodology page.