Random Letter Generator
Pick random letters from A to Z in uppercase, lowercase or a mix of both — one letter or a whole sequence at a time. Free, instant and private: every letter is chosen in your browser with cryptographic randomness.
How to use the random letter generator
- Choose the letter case. Pick uppercase A–Z, lowercase a–z, or mixed case to allow both.
- Set the count and options. Decide how many letters you want, choose a separator, and tick "no repeated letters" if each letter should appear only once.
- Generate and copy. Press Generate letters to get your random letter or sequence, then copy it with a single click.
About this tool
This free random letter generator picks fair, unpredictable letters of the English alphabet for classroom games, spelling and vocabulary drills, ice-breaker activities, drawing prompts, name and team selection by initial, random variable naming, and any moment you need a letter with no bias. Choose a single letter for a quick decision, or generate a longer sequence with your preferred separator to build random labels, seating groups or word puzzles.
Letters are selected with your browser's cryptographically secure random number generator (crypto.getRandomValues) and rejection sampling, so every letter from A to Z is equally likely and there is no hidden pattern. Everything runs locally on your device — nothing is uploaded or stored — so the tool is fast, works offline once loaded, and keeps your activity completely private.
Frequently asked questions
Is every letter equally likely?
Yes. The generator uses the browser's secure random source with rejection sampling to avoid bias, so each of the 26 letters has exactly the same chance of appearing on every pick.
Can I get letters without any repeats?
Tick "no repeated letters" and each letter will appear at most once. In this mode you can request up to 26 letters for a single case, or up to 52 in mixed case, since that is how many distinct letters exist.
What is mixed case?
Mixed case draws from both uppercase and lowercase letters, so a result might look like "G d Q k". Use uppercase or lowercase mode instead if you only want one case.
Do you also generate numbers or symbols?
This tool is focused on the letters A to Z. If you need digits or symbols mixed in, try the Random String Generator, which lets you combine letters, numbers and symbols in one string.