Random Letter Generator (A to Z)

Press Generate for a letter of the alphabet. Ask for up to 100 at once, limit the draw to vowels or consonants, leave letters out, or forbid repeats.

Runs in your browserFree, no sign-upLast reviewed October 13, 2026

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Quick answers

How do I pick a random letter from A to Z?: Leave How many letters at 1 and Letters to draw from on All 26 letters, then press Generate. Each letter has a 1 in 26 chance, about 3.85%. Press Generate again for another letter.
What is the chance of getting a vowel?: 5 in 26, about 19.23%, on a single draw from the full alphabet, counting A, E, I, O and U as the vowels. Over five letters with repeats allowed, the chance of at least one vowel is 65.63%.
Can I generate random letters with no repeats?: Yes. Tick No repeats and each letter is drawn at most once. The count then cannot exceed the letters available: 26 for the full alphabet, 21 for consonants, 5 for vowels, and fewer if you leave letters out.
Which letters does the Scattergories die leave out?: The 20-sided Scattergories die has no Q, U, V, X, Y or Z. To copy it, type QUVXYZ into Letters to leave out. The pool becomes 20 letters and each has a 1 in 20 chance, exactly 5%.
Is Y counted as a vowel?: No. Vowels only draws from A, E, I, O and U. Consonants only draws from the other 21 letters, which includes Y. If you want Y treated differently, use All 26 letters and leave out the letters you do not want.
Are the letters truly random?: They are pseudo-random. A seed number is fed into an algorithm, and the same seed with the same settings always gives the same letters. Each press of Generate uses a new seed. That is fair for games and classrooms but is not cryptographically secure.

What Random Letter Generator does

This random letter generator draws letters from the English alphabet with an equal chance for each one: 1 in 26 from the full A to Z. Ask for a single letter or up to 100, in upper case, lower case or a mix. You can draw from vowels only (A, E, I, O, U), from the 21 consonants only, or type the letters you want left out, such as Q, X and Z for a word game. Tick No repeats and every letter appears at most once, which turns a 26-letter draw into a shuffled alphabet. Each result shows the seed it came from, so the same letters can be produced again. The letters are pseudo-random: good for games and lessons, not for passwords.

Example draws you can reproduce

Real results from the tool. Each used 100 in Seed (optional), so entering the same settings and seed gives you the same letters. Leave the seed blank and you get different letters on every press.

One letter from A to Z

How many letters 1, Uppercase, All 26 letters, Seed (optional) 100.

Draw panel: Letters in the pool 26, Chance of each letter 1 in 26 (3.85% on every draw).

Five letters, repeats allowed

How many letters 5, Uppercase, All 26 letters, Seed 100.

F I N X O

Five different letters without Q, U, V, X, Y, Z

How many letters 5, Letters to leave out QUVXYZ, No repeats ticked, Seed 100.

O D S N W

The pool is 20 letters, the same set as the Scattergories die.

Three vowels

How many letters 3, Vowels only, Seed 100.

E E I

With only five letters in the pool, repeats are common unless No repeats is ticked.

Four lowercase consonants

How many letters 4, Lowercase, Consonants only, Seed 100.

g j p x

Eight letters in mixed case

How many letters 8, Both, mixed at random, All 26 letters, Seed 100.

F i n X O R A n

The letters are drawn first and each is then set to upper or lower case with a 50% chance.

The whole alphabet in random order

How many letters 26, No repeats ticked, Seed 2024.

S T C Y U O W A M J E F B G Q K Z I D H N L X P R V

Chance of each letter by pool

Every letter left in the pool is equally likely. The figures are the ones shown in the tool's Draw panel.

Letters to draw from	Letters in the pool	Chance of each letter	As a percentage
All 26 letters	26	1 in 26	3.85%
Consonants only	21	1 in 21	4.76%
All letters, QUVXYZ left out	20	1 in 20	5%
Vowels only	5	1 in 5	20%

With No repeats ticked these are the chances for the first letter only. After each draw the pool shrinks by one.

How likely are repeats and vowels in a random draw?

For draws from all 26 letters with repeats allowed. Each letter is independent, so repeats turn up sooner than most people expect.

Letters drawn	Possible sequences	Chance all letters are different	Chance of at least one vowel
1	26	100%	19.23%
2	676	96.15%	34.76%
3	17,576	88.76%	47.31%
5	11,881,376	66.44%	65.63%
10	26 to the power 10	13.65%	88.18%

Vowels here are A, E, I, O and U. In a ten-letter draw there is an 86.35% chance that at least one letter appears twice.

How a letter is chosen

letter = pool[ floor( r x pool size ) ], where r is the next pseudo-random number from 0 up to but not including 1

The pool is the alphabet in order after your vowel, consonant and leave-out choices. For each letter the generator produces a number r and takes the letter at that position, so every letter covers an equal slice of the range. With No repeats ticked the pool is instead shuffled with a Fisher-Yates shuffle and the first letters are taken. Mixed case is decided afterwards, letter by letter, with a 50% chance of each case.

Seeds: why a draw can be repeated, and what that means

The numbers behind each draw come from a small seeded generator (mulberry32). A seed is a whole number that fixes the entire sequence: same seed, same settings, same letters, on any device.

When you press Generate with Seed (optional) left blank, the page picks a new seed from about a million possibilities and shows it as Seed used. Type that figure into Seed (optional) and the draw comes back, which is handy when someone asks you to prove what was drawn or when a lesson needs the same letters on every pupil's screen. Any whole number from 1 to 4,294,967,295 is accepted.

The same property is why the output must not be used for anything secret. Anyone who knows or guesses the seed can produce the same letters, and a million seeds is a small space to search. It also means that from the button alone, a draw of five letters can show at most about a million of the 11,881,376 possible sequences. For a single letter or a handful of letters in a game, this makes no practical difference.

Uses for a random letter

Category games such as Scattergories and Stop (Tutti Frutti), where everyone names things beginning with the drawn letter. Leave out the hard letters first.
Phonics and spelling practice: draw a letter and ask for its sound, a word that starts with it, or the letter that comes next.
Writing and drawing prompts: a character name, a place or an object beginning with the letter.
Choosing initials for groups or labels, such as Team K and Team R, using No repeats so no label is used twice.
Probability lessons: draw 100 letters and compare the table of how often each came up with the expected 3.85%.
Picking a starting letter for a vocabulary quiz or an alphabet scavenger hunt.

What this page does not do

It uses the 26 letters of the English alphabet only. There are no accented letters, digits or symbols; for those, use the Random String Generator.
It does not weight letters by how common they are in English. E is no more likely than Z.
There is no spinning wheel or animation. The letter appears as soon as you press Generate.
It does not make words or pronounceable strings; the letters are independent of each other.
It does not pick from your own list of names or options. The Random Choice Picker does that.

How to use it

1
Set How many letters to a number from 1 to 100.
2
Choose a Case: Uppercase, Lowercase, or Both, mixed at random.
3
Under Letters to draw from, pick All 26 letters, Vowels only or Consonants only.
4
Optionally type letters into Letters to leave out, for example QUVXYZ, and tick No repeats if each letter may appear only once.
5
Press Generate. Press it again for new letters, or type an earlier Seed used figure into Seed (optional) to get that draw back.

Answers to common questions

How many letters can I generate at once?

From 1 to 100 per press. With No repeats ticked the limit is the size of the pool, so 26 at most. For long random strings that include digits, the Random String Generator goes up to 128 characters per string.

Why did I get the same letter twice in a row?

Because each draw is independent. With repeats allowed, the chance that two letters in a row match is 1 in 26, and in a five-letter draw there is a 33.56% chance that some letter appears more than once. Tick No repeats to rule it out.

How do I get a random vowel or a random consonant?

Change Letters to draw from. Vowels only gives A, E, I, O or U with a 1 in 5 chance each. Consonants only gives one of the other 21 letters with a 1 in 21 chance each, about 4.76%.

Can I get the same letters again later?

Yes. Note the Seed used figure in the Draw panel, keep the other settings the same, and type that number into Seed (optional). The same letters come back in the same order for as long as the box holds that seed.

What does Both, mixed at random do?

It draws the letters as usual and then sets each one to upper or lower case with an equal chance. With No repeats ticked, a letter still appears only once regardless of case, so you will not get both G and g.

Can I use these letters for a password?

No. Letters alone make weak passwords, and this generator is seeded and reproducible, not cryptographically secure. Use a password generator that draws on your device's secure random source.

How is this different from the Random String Generator?

That tool builds strings of a set length from letters, digits or hexadecimal, for test IDs and tokens. This one draws individual letters of the alphabet, with vowel and consonant pools, a leave-out list, a no-repeat option and the chance of each letter.

Does it work for alphabets other than English?

No. The pool is fixed to the 26 basic Latin letters A to Z. Letters such as Ñ, Ø or ß and other scripts are not included.