Guides

Practical answers about image formats, file sizes, privacy and the web.

JPG vs PNG vs WebP vs AVIF: Which Image Format to Use
Compare JPG, PNG, WebP and AVIF: quality, file size, transparency and compatibility, with a simple rule for photos, logos and websites.
How to Reduce Image File Size Without Losing Quality
Five effective ways to make images lighter without visible quality loss: dimensions, quality, format, metadata and compression to a target size.
What Is a HEIC File and How to Open It on Any Device
What the HEIC format is, why iPhones use it, how to open HEIC photos on Windows and Android, and how to stop getting HEIC files.
Social Media Image Sizes Guide: Instagram, Facebook, X
Recommended image sizes for Instagram, Facebook, LinkedIn, X (Twitter) and YouTube, with free tools to resize and crop to each format.
What Is EXIF Data and How to Remove It From Photos
What EXIF metadata contains (GPS location, camera, date), the privacy risks of sharing it, and how to view and remove it from your photos.
How to Optimize Images for a Website: A Practical Guide
Make your web pages load faster with properly sized, compressed and modern-format images: dimensions, WebP and AVIF, lazy loading and Core Web Vitals.