Writing about images
Six write-ups on why an image file is the size it is and what to do about it: the real difference between PNG, JPG and WebP, the width a web page actually needs, which favicon sizes still matter, and what a photo tells a stranger about where it was taken.
What EXIF Data Is, and What It Reveals
Every photo carries a hidden block of camera settings, timestamps and often the exact spot you were standing.
Read ImagesHow to Reduce Image File Size (Without Losing Quality)
Most oversized images are oversized for one boring reason, and fixing it takes about thirty seconds.
Read ImagesPNG vs JPG vs WebP: Which One Should You Use?
One rule covers ninety per cent of cases, and the exceptions are worth knowing because getting it wrong is expensive.
Read ImagesWhat Size Should Images Be on a Website?
Concrete pixel widths and file sizes for every common slot, and why the retina answer is not "double everything".
Read ImagesHow to Crop an Image to an Exact Aspect Ratio
The rectangle you need is one division away. Here is the formula, the offsets for a centred crop, and how much of the picture each common ratio costs you.
Read ImagesWhat Favicon Sizes Do You Actually Need?
Five sizes cover every browser and phone in real use. The other fifteen files the old cheat sheets told you to generate are for platforms nobody runs.
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