Text Tools
How to Create a Clean URL Slug for SEO and Better Sharing
A good URL slug is short, readable and stable. Learn what makes a slug clean, see good and bad examples, and find out when — and when not — to…
Blog & Guides — Page 3
Clear, practical explanations of the everyday tasks our tools help with — how the calculations work, which settings to choose, and the mistakes worth avoiding.
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Productivity
What Is Reading Time and How Is It Calculated?
"5 min read" is based on a simple formula — and a lot of assumptions. Here is how reading time is calculated, why reading speeds vary so much, and…
Image Tools
How to Compress Images Without Losing Too Much Quality
Big images slow down websites and bounce off upload limits. Learn how dimensions, formats and quality settings affect file size, and follow a simple…
Calculators
How to Calculate Percentage: Simple Methods, Examples, and Formulas
Every percentage question is a variation on one simple idea. Learn the formulas for percentages of a number, percentage change and discounts — and…