Includes digits
This tool emits letters only.
Fix: Use Random String Generator for alphanumeric output.
Random Letter Generator
Generate random letters (a-z, A-Z, or mixed) of configurable length — ideal for games, puzzles, and tests
Count:
Case:
Input
Loading editor...
Output
Output will appear here...
Advertisements
content bottom • up to 300x250
Advertisements
sidebar • 160x600
What is Random Letter Generator
Last reviewed:
Random Letter Generator picks random letters from a-z, A-Z, or a mixed-case alphabet. You control length and batch size to generate one letter or thousands of letter strings.
Teachers, game designers, and developers use it for phonics practice, random avatar initials, CAPTCHA-style puzzles, and placeholder data.
Why use it
- Classroom phonics drills and word games.
- Random avatar initials for placeholders.
- Build CAPTCHA-style letter puzzles.
- Seed mock data in lowercase-only fields.
- Randomize call-sign style identifiers.
Features
- Lower / upper / mixed case
- Any length up to 4096
- Up to 10,000 strings per batch
- Perfect for games & drills
- Zero-upload Random Letter pipeline, nothing touches a server
How to use Random Letter Generator
- Set length. Pick how many letters per string.
- Pick case. Lower, upper, or mixed.
- Run. Copy the list.
Example (before/after)
Input
5
Output (length=5, mixed case, count=3)
KmTlr qJbDp HxRsE
Common errors
Unwanted ambiguity
Letters like I/l/1 are confusing visually.
Fix: Filter manually if you need 'unambiguous' output.
FAQ
Lowercase only?
Yes — pick lower, upper, or mixed via the toolbar.
What's the maximum length?
4096 letters per string, 10,000 strings per batch.
Can I add digits?
Use Random String Generator with the alnum charset.
Are non-ASCII letters supported?
No — this tool covers a-z / A-Z.
Is input uploaded?
No — each random letter is picked locally using your browser's RNG.
Related tools
Pair with string, word, and name tools. You can also browse the full Random Content Generators category for more options.
Random String Generator
Generate random alphanumeric, hex, letter, or symbol-included strings with configurable length and charset
Random Word Generator
Generate random English words from a curated list — perfect for passphrases, prompts, and placeholders
Random Name Generator
Generate realistic first+last name pairs — perfect for test data, prototypes, and fake personas
Random Hex String Generator
Generate cryptographically strong random hex strings — ideal for IDs, tokens, and test fixtures
Random Color Generator
Generate random hex, RGB, or HSL color values — great for design prototypes and mock data
Password Generator
Generate strong passwords with adjustable length and character types. Includes a real-time strength meter and copy button for quick password creation.
Random Binary Number Generator
Generate random binary (0/1) strings of any length — handy for logic simulations and tests
Random Boolean Generator
Flip a virtual coin — outputs true/false, yes/no, heads/tails, 1/0, or on/off
Random Choice Picker
Pick one or many items from a list — with or without repeats — for raffles, decisions, and sampling
Random Decimal Number Generator
Generate random decimal numbers in a min/max range with configurable precision
Random Email Address Generator
Generate realistic fake emails in a configurable domain — perfect for QA, load tests, and seed data
Random MAC Address Generator
Generate RFC-friendly locally-administered MAC addresses in colon, dash, Cisco-dot, or bare format