TinyJPG - Compress JPEG images with perfect quality and file size

Bandizip - Bandizip : All-In-One Free Zip Archiver. Bandizip is a lightweight, fast and free All-In-One Zip Archiver.

Promo Instant Image Resizer - Automatically optimize images for web & social media (free!)

The Unarchiver - Get the top application for archives on Mac. It's a RAR extractor, it allows you to unzip files, and works with dozens of other formats.

Compressor - Compressor adds power and flexibility to Final Cut Pro X export.

File Roller - File Roller is an archive manager for the GNOME desktop environment.