CodeItBro

Random Letter Generator

Generate random letters, numbers, or custom characters. Fully customizable with unique filtering, separators, and advanced presets.

26 chars available
Letter Case
Result will appear here...

Pick a Letter, Any Letter

Need a random character for a game of Scattergories? Or maybe a unique string for a password? This tool generates cryptographically strong random letters uniformly from your chosen set.

AZ7

More Than Just A-Z

Custom Pools

Don't limit yourself to English. Paste Greek, Cyrillic, or Emoji characters to pick from anything.

True Randomness

We use crypto.getRandomValues() where possible for better randomness than standard math functions.

How It Works

The Random Letter Generator runs entirely in your browser using JavaScript. Unlike other tools that send your data to a server, we process everything locally on your device. This guarantees 100% privacy and blazing fast speed.

  • No server interaction – data never leaves your device
  • Instant results since there is no network latency
  • Works offline once the page is loaded
  • Free to use with no usage limits

How to Use

1

Choose Charset

Select a preset (A-Z, 0-9) or type your own custom characters.

2

Configure

Set quantity, separator, casing, and uniqueness rules.

3

Generate

Click generate to get your random sequence.

Example Usage

Generating a simple sequence of random letters.

Input
Preset: A-Z, Quantity: 5, Separator: Comma
Output
X, A, M, P, L

Frequently Asked Questions

Can I generate passwords with this?
Yes! Select 'Alphanumeric' or 'Special Chars', set a length of 12+, and choose 'No Separator'.
What is the 'Unique' option?
It ensures no character appears twice in the result. Useful for shuffling a list or picking lottery numbers.
Is it truly random?
It uses your browser's crypto-strong random number generator (Math.random) which is sufficient for most non-cryptographic use cases.

Related Tools

File Corruptor

Intentionally corrupt any file by randomly modifying its bytes. Great for testing or harmless pranks.

Spacebar Speed Test

How fast can you hit the spacebar? Test your finger speed with this 5, 10, or 30 second challenge.

Mouse Sensitivity Calculator

Convert mouse sensitivity between popular FPS games like Valorant, CS:GO, Apex Legends, and Overwatch.

ASCII Art Generator

Convert text into ASCII art styles.

Random Date Generator

Generate random dates with customizable ranges and formats. Perfect for testing and data generation.

The Random Letter Generator is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.