Guides
Short, practical explainers that help you understand the text formats and techniques behind our tools.
Base64 Encoding Explained: What It Is and When to Use It
How Base64 turns bytes into safe text, why the output is longer, and the common mistake of treating it as encryption.
URL Encoding Explained: Percent-Encoding Made Simple
Which characters are allowed in a URL, why a space becomes %20, and how to avoid double-encoding bugs.
Keyword Density: What It Means for SEO Today
How keyword density is calculated, why there is no perfect percentage, and how to use frequency data to write better pages.
JSON Formatting and Validation: A Practical Guide
The rules of valid JSON, the errors that break it most often, and when to format or minify.
Text Case Styles: Title Case, Sentence Case, camelCase and More
A reference to the common capitalisation styles in writing and programming, and when to use each one.
How to Clean Messy Text: A Step-by-Step Workflow
A repeatable order of operations for tidying text copied from PDFs, spreadsheets, emails and web pages.
How Long Should It Be? A Guide to Word and Character Counts
Typical length limits and targets for essays, web pages, meta tags, social posts and speeches, and how counting works.