ToolDash
Random Letter Generator

Random Letter Generator

Pick one random letter or a whole string of them from A to Z. Choose uppercase, lowercase or mixed, vowels or consonants only, and whether letters can repeat. It uses your browser's secure random source.

  • Free, no sign-up
  • Runs in your browser — nothing is uploaded
  • Instant results, no waiting on a server

Get random letters from A to Z: choose how many, upper or lower case, vowels or consonants only, and whether letters may repeat. Generated locally with your browser's secure random source.

Settings

How many letters

Which letters

Case

Separator

Result

Press Generate to get your result.

How to generate random letters

  1. 1Enter How many letters you want. The default of 1 gives a single random letter, which is handy for games like Scattergories.
  2. 2Choose Which letters to draw from: all letters, vowels only (a random vowel generator) or consonants only.
  3. 3Pick a Case: UPPERCASE, lowercase or Mixed. Tick No repeated letters if each letter may be used only once.
  4. 4Choose a Separator for the output (space, comma, new line or none), then click Generate again for a fresh set.
  5. 5Click Copy all to copy the letters with the separator you chose.

How this letter randomizer works

This letter randomizer draws from the 26 letters of the English alphabet. Each draw uses the Web Crypto random generator built into your browser rather than Math.random, and picks an index with rejection sampling so that no letter is even slightly more likely than another. With 26 letters that matters: a naive remainder on a random number would favour the first few letters.

Restricting the pool is how you get a random vowel generator or a consonant picker. The vowels are A, E, I, O and U, and the consonants are the other 21 letters including Y. With No repeated letters turned on, the tool draws without replacement, like taking tiles from a bag, so you can deal out up to 26 different letters, 5 vowels or 21 consonants before it runs out. If you ask for more than exist, it explains why instead of repeating.

Random alphabet letters, from a random alphabet letter generator like this one, are useful more often than you might think: choosing the starting letter in word games and classroom activities, naming test fixtures, labelling experiment groups, building sample data or generating a quick mnemonic. Mixed case is handy for filler strings that should look less regular.

For passwords, tokens or secrets use the Password Generator or Random String Generator instead, which add numbers and symbols and report entropy. Nothing here is sent anywhere, because all of the picking happens in your browser.

When people pick random letters

Word games and classrooms

Use it as a random letter picker for Scattergories, spelling games, drama exercises and warm-ups.

Naming and labelling

Assign letters to groups, branches or test cases without bias, with no repeats so each label is unique.

Sample data

Generate random letters for placeholder initials, short codes and form-field tests, in the case you need.

Vowel and consonant practice

Draw only vowels or only consonants to practise phonics, build puzzles or test input validation.

Frequently asked questions

Is each letter equally likely?

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Yes. The generator uses secure randomness with rejection sampling, so every letter in the chosen set has the same chance on every draw.

How do I get only vowels or only consonants?

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Choose Vowels only or Consonants only under Which letters. Vowels are A, E, I, O, U; consonants are the remaining 21 letters, including Y.

Can I stop letters from repeating?

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Tick No repeated letters. You can then draw up to 26 letters, or fewer if you limit the set to vowels or consonants.

Does it support non-English alphabets?

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No, only A to Z. For other characters use the Random String Generator and add your own letters to the extra characters field.

Are the letters stored or sent anywhere?

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No. They are generated in your browser and never leave your device.