Random Letter Generation and Lorem Ipsum: Two Different Kinds of Placeholder Content
How random letter generators and Lorem Ipsum generators work, and why one is truly random while the other deliberately isn't.
Random letter generation and Lorem Ipsum generation both produce "filler" content, but one is genuinely random while the other is deliberately, precisely not random at all.
Random letters: uniform selection from the alphabet
Each generated letter is drawn with equal probability from the 26 letters of the alphabet (uppercase or lowercase, depending on the setting). Generating 5 letters doesn't favor common letters like E or T over rare ones like Q or Z — every letter has an identical 1-in-26 chance on every draw, unlike the natural letter frequency distribution found in real English text.
Lorem Ipsum: cycling through a fixed word bank, not random at all
Despite looking like nonsense text, classic Lorem Ipsum generators don't actually generate random words — they cycle through a fixed, well-known vocabulary derived from a scrambled passage of classical Latin (originally from a 1st-century BC text by Cicero). The specific words and their approximate frequency are intentionally consistent across implementations, which is exactly why "Lorem ipsum dolor sit amet" is instantly recognizable — it's the same starting phrase nearly every Lorem Ipsum generator produces.
Why Lorem Ipsum is deliberately not meaningful text
The entire point of placeholder Latin-derived text is that it visually resembles real prose (word lengths, punctuation, paragraph structure) without being distracting or readable — a designer evaluating a layout shouldn't be pulled into actually reading the placeholder content, which real (even random English) words would tempt them to do.
Why random letters aren't useful for the same placeholder purpose
Random letter strings don't resemble real words or sentence structure at all, making them useful for very different purposes — generating short codes, testing input validation, or creating random identifiers — but poorly suited to simulating realistic body text the way Lorem Ipsum's word-and-sentence structure does.
Common mistakes to avoid
- Assuming Lorem Ipsum text is randomly generated each time — most implementations deterministically cycle through the same underlying word bank
- Using random letter strings where a genuinely secure random token is needed — for anything security-sensitive, use a proper password or token generator instead
- Treating either tool's output as meaningful content that could be mistaken for real user-facing text in a shipped product
Generate your own placeholder content with the random letter generator and Lorem Ipsum generator.