The best alternatives to PhotoShrinker are Bulk Resize Photos, Remove Master, and Compressio. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of PhotoShrinker?
Snowflake Startup Challenge— Win investment & global exposure with Snowflake and NYSE
Bulk Resize Photos is a free web-based image resizer. Your photos are processed on your computer and don't get uploaded anywhere, so it's both super-fast and private.
CompressioWeb is an Open Source Production Grade Image Compression API and WebApp. It compresses JPG, PNG, GIF & SVG images in both Lossy and Lossless formats and is built with Node.js, Express.js and React.js.
AnyCrop is a simple & easy web app for cropping images. It's free, there's nothing to download, and images are processed entirely on your device. Credit to Ryunosuke Kikuno for the photo in one of the screenshots. (https://unsplash.com/photos/_gHuxuCOISg)