Compress Buddy

Compress Buddy is a free, browser-based tool for shrinking lots of images without sending them to a server. All processing happens on your device, so the files stay local — handy if you prefer to keep photos and client assets private.

You pick a group of images, the app applies compression while trying to keep resolution and visual quality, and then you download everything as a single zip. The core workflow is available at no cost on the website.

• Bulk file selection
• Automatic compression aimed at preserving quality
• Privacy-first, in-browser processing
• Download compressed files as one zip

Official site: https://compressbuddy.com/