Character frequency analysis connects directly to Shannon entropy, data compression, and information theory. Here's what the distribution of characters in text reveals about compressibility, password strength, Zipf's Law, and stylometric authorship analysis.
Readability scores measure sentence length and syllable count — not vocabulary familiarity, coherence, or domain knowledge. Here's how Flesch-Kincaid, Gunning Fog, and SMOG actually work, what they miss, and when they're genuinely useful as diagnostic tools.
Lorem Ipsum is neutral enough to let design be evaluated as design — but it also hides real content problems until production. Here's the legitimate case against Lorem Ipsum, when representative real text produces better design decisions, and when Lorem Ipsum genuinely is the right tool.
Git diff, pull request reviews, and three-way merges all run on the Myers diff algorithm. Here's how diff finds the shortest edit between two texts, how to read git diff output, why merge conflicts happen, and how diff applies beyond version control.
Case conventions exist for reasons, not tradition. Here's why Python uses snake_case, JavaScript uses camelCase, CSS uses kebab-case, and how to handle naming across language boundaries when data crosses APIs and databases.
Learn how text diff works, the difference between line, word, and character diff modes, how to read unified diff format, and when to use a text diff tool for documents, code, and configuration files.
Learn how character frequency analysis works, what the classic English letter distribution looks like, and how it's used in cryptography, data cleaning, linguistics, and writing analysis — with a free character frequency tool.
Learn how to sort any text list alphabetically, numerically, by length, or randomly, why numerical sort differs from alphabetical for numbers, and how to use a free sort lines tool for any list.
Learn what Lorem Ipsum is, where it comes from, why designers use it instead of real text, and how to generate any amount of placeholder text for mockups, prototypes, and database seeding.
Learn how ROT13 works, why it was invented for spoiler protection, how it differs from real encryption, and the variations (ROT5, ROT18, ROT47) — with a free ROT13 encoder/decoder tool.
Learn how to use a string repeater to generate repeated text for test data, divider lines, SQL placeholders, UI stress testing, and pattern generation — with separator options and real examples.
Learn how find and replace works beyond basic text substitution — regex patterns, whole word matching, case sensitivity, backreferences — with real examples for data cleaning, templates, and code refactoring.
