Random Letter Generator (Multi-Language)
Generate random letters from 8+ alphabets (English, Greek, Cyrillic, Japanese). Features speech synthesis, timer, font randomization, and phonetic filters.
About
This is not just a randomizer; it is a linguistic engine designed for educators, gamers, and designers. Whether you are playing a high-stakes round of word games, teaching phonics, or testing typography, precision matters.
Unlike standard tools that rely on a simple rand function over a fixed string, this application operates on a structured database of Unicode ranges. The probability of selecting a specific grapheme L from a set S is defined as 1|S|, ensuring uniform distribution unless specific filters (like Vowels Only) are applied.
We support full phonetic filtering. For example, in the Greek alphabet, selecting "Vowels" will strictly limit the domain to { α, ε, η, ι, ο, υ, ω }. This level of granularity makes the tool indispensable for specialized linguistic tasks.
Formulas
For advanced users interested in the combinatorics of character generation:
The probability P of generating a specific sequence of n unique letters from an alphabet of size N (without replacement) is:
P(sequence) = 1P(N, n) = (N − n)!N!
When the "Allow Duplicates" setting is enabled (sampling with replacement), the total number of possible outcomes for a sequence of length n becomes Nn.
Reference Data
| Alphabet System | Character Count | Range (Unicode) | Usage Context |
|---|---|---|---|
| Latin (Standard) | 26 | A - Z | English, Western Europe, Scrabble, Wordle. |
| Greek | 24 | α - ω | Mathematics, Physics, Fraternity naming. |
| Cyrillic | 33 | а - я | Russian, Slavic languages. |
| Hebrew | 22 | ℵ - &tav; | Biblical studies, Ivrit. |
| Japanese (Hiragana) | 46 | あ - ん | Early education, grammatical particles. |
| Japanese (Katakana) | 46 | ア - ン | Foreign loanwords, onomatopoeia. |
| Arabic | 28 | ا - ي | Abjad script, standard Arabic. |