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Guides
Short, practical answers to the questions behind the tools — formats, formulas, and the fixes people actually search for.
Image to PDF
How to Combine Photos into One PDF (Free, No App Needed)
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PNG to JPG
PNG vs JPG: Which Format Should You Actually Use?
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Compress Image
How to Reduce Image File Size Without Losing (Visible) Quality
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Resize Image
Common Image Sizes for Web and Social Media
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Color Converter
HEX, RGB and HSL: Color Codes Explained Simply
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WebP to PNG
Can’t Open a WebP File? Here’s Why — and the 10-Second Fix
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Word Counter
How Long Should It Be? Word Count Guidelines That Actually Matter
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Password Generator
What Makes a Password Strong (Length Beats Complexity)
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Percentage Calculator
How to Calculate Percentages by Hand (The Only 3 Formulas You Need)
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Age Calculator
How to Calculate Age from a Date of Birth — Exactly
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