Image format guides
Plain-language answers about PNG, JPG, WebP, AVIF, favicons and file size.
- PNG vs JPG vs WebP vs AVIF: which image format should you use?
A plain-language comparison of PNG, JPG, WebP and AVIF: compression, transparency, file size and compatibility, with a quick way to choose.
- How to convert PNG to JPG without losing quality
You can't convert to JPG with zero loss, but you can make it effectively invisible. The settings, the traps and when to pick a different format.
- Transparent PNG to JPG: why the background turns black or white
JPG can't store transparency. Here's what happens to transparent pixels, why you sometimes get black, and how to choose a clean background.
- How to reduce PNG file size without ruining the image
Six practical ways to make PNG files smaller, from resizing and color reduction to switching formats, and how to know which one fits your image.
- Favicon sizes and formats: what you actually need in 2026
Which favicon files to create, the sizes that matter, the HTML to link them and how to make a favicon.ico from a PNG.