Image Formats
JFIF vs JPEG: What’s the Difference?
JFIF and JPEG are almost always the same image data. Here is what each name really means, why Windows saves pictures as .jfif, and how to convert them without losing quality.
· 3 min read
Guides on image formats, compression and web performance.
Image Formats
JFIF and JPEG are almost always the same image data. Here is what each name really means, why Windows saves pictures as .jfif, and how to convert them without losing quality.
· 3 min read
Image Formats
WebP usually produces smaller files than JPEG at the same visual quality, but JPEG still wins on compatibility. A practical guide to choosing between them.
· 3 min read
Image Formats
AVIF usually beats WebP on file size, WebP beats AVIF on encoding speed and support in older software. Here is how to decide — and how to use both.
· 2 min read
Image Compression
Seven techniques that actually shrink images — from choosing the right dimensions to modern formats and metadata removal — in the order that saves the most.
· 3 min read
Tutorials
A step-by-step guide to converting PNG images to WebP — lossy or lossless — with transparency intact, plus how to use the result on your website.
· 2 min read
Image Compression
A 3 MB photo that looks like any other? Megapixels, quality 100, noise, metadata and embedded thumbnails are usually to blame. Here is how to find the cause and fix it.
· 2 min read
File Formats
JFIF files are JPEG images with an unusual extension. Learn where they come from, which programs open them, and the quickest way to turn them into JPG or PNG.
· 2 min read
Image Compression
From run-length encoding to discrete cosine transforms and AV1 prediction: a clear, non-mathematical tour of how image formats make pictures small.
· 3 min read
Web Performance
AVIF, WebP, JPEG, PNG or SVG? A practical decision guide for every kind of image on a website, with markup you can copy.
· 2 min read
SEO & Images
File names, alt text, formats, dimensions, structured data and sitemaps: everything that helps your images rank in Google Images and speeds up your pages.
· 2 min read