Articles
Guides and tutorials for everyday text, data, and developer tasks — each one paired with a free tool.
Text & Writing
How to Remove Duplicate Lines from Text
Duplicate lines show up constantly when merging lists, exporting data, or combining files. Here's how to clean them quickly.
What Is Lorem Ipsum and Why Do Designers Use It?
"Lorem ipsum dolor sit amet..." has been the default placeholder text for over 500 years. Here's where it comes from and why it's still the best option.
Data & JSON
How to Validate JSON (And Fix Common Errors)
A single misplaced comma or missing bracket can break your entire application. Here's how to validate JSON and understand the most common errors.
How to Format JSON for Readability
Raw JSON is often compressed into a single line. Formatting it with consistent indentation makes debugging and reviewing far easier.
Developer Tools
How to Escape HTML Characters (And Why It Matters)
Displaying user-generated content without escaping HTML special characters is one of the most common causes of XSS vulnerabilities. Here's how to do it right.
How to Create SEO-Friendly URL Slugs
A slug is the human-readable part of a URL. Clean, consistent slugs improve readability, shareability, and search engine rankings.