Learn
How to work with text, colors, and encodings. Step-by-step guides that answer the questions you actually run into.
In-depth guides
When you need more than a quick tip. These cover the full picture so you can make good decisions.
Complete Guide to Text Encoding
Master Base64, URL encoding, HTML entities, UTF-8, binary, and hex. When to use each encoding scheme with practical examples.
Complete Guide to Web Color Accessibility
WCAG contrast ratios, color blindness simulation, accessible palettes. Test and fix color accessibility.
Complete Guide to SEO-Friendly URL Slugs
Structure, best practices, hyphenation, and tools for SEO-friendly URL slugs.
Complete Guide to Text Case Conventions
camelCase, kebab-case, snake_case, PascalCase, title case. When and how to use each for code, URLs, and content.
Complete Guide to Regular Expressions for Text
Regex patterns, replace, capture groups. Use for text processing, validation, and parsing.
Complete Guide to Character Count and Word Analysis
Word count, character count, keyword density, frequency analysis, readability. Tools for writers and SEO.
Quick how-tos
Short guides when you just need the steps.
How to Write Check Amounts in Words
Spell dollar amounts for checks, including cents as xx/100, with a free converter.
UPC and GTIN Check Digit Explained
How barcode check digits work, with a worked UPC-A example and calculator.
Text Case Styles Cheat Sheet
lowercase, Title Case, camelCase, kebab-case, snake_case, and when to use each.
How to Create SEO-Friendly URL Slugs
Step-by-step guide to turning titles into clean, readable URLs that search engines and users prefer.
Understanding Color Contrast for Accessibility
Learn WCAG contrast ratios, when to use AA vs AAA, and how to test your colors.
Text Encoding Explained: Base64, URL Encode, and More
Understand Base64, URL encoding, HTML entities. When to use each and how they work.
Not sure where to start? Browse tools by category or look up a term.
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Convert text to lowercase
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Generate clean, SEO-friendly URL slugs from any text
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Count words, characters, and sentences in text
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Convert text to title case format
Number to Words
Convert numbers to words
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Calculate difference between dates
Ordinal converter
Text Diff Tool
Compare two texts and find differences
Base64 Encode/Decode
Encode and decode Base64 strings