Guides
How to get images smaller, converted and the right size on a Mac. Each guide starts with what macOS can already do for free.
How to compress images on a Mac without losing quality
Three ways to make photos smaller on a Mac, from Preview to batch tools, and how to shrink them without visible quality loss.
ReadHow to convert HEIC to JPG on a Mac, one photo or hundreds
Convert iPhone HEIC photos to JPG on a Mac with Finder, Preview, Photos or the command line, and in batches with Shrinker Studio.
ReadHow to batch resize images on a Mac
Resize many images at once on a Mac with Preview, Finder Quick Actions or sips, and with crops that keep the subject in frame.
ReadWebP vs AVIF vs JPEG XL: which image format should you use?
A plain comparison of WebP, AVIF, JPEG XL, JPEG and PNG for the web: file size, quality, browser support and when to use each.
ReadHow to reduce an image to a specific size in KB on a Mac
Get a photo under 100 KB, 200 KB or 1 MB for an upload form or email, without guessing at quality settings.
Read
Coming to Shrinker Pro in November 2026.
Shrinker Studio arrives inside Shrinker Pro, which is free. Every Studio tool will work for your first 10 exports, no account needed. Then it is US$49, once (US$35 until Cyber Monday, 30 November 2026): no subscription, no paid packs.
macOS 14 Sonoma or later · Apple silicon