Compresto is a macOS app designed to compress large media files such as videos, images, GIFs, and PDFs while preserving visual quality. It helps creators, developers, and everyday Mac users significantly reduce file sizes to save storage space, speed up uploads, and simplify file sharing.

The app focuses on fast, high-quality compression that runs entirely on the user’s device, meaning files are processed locally without being uploaded to online services. This improves privacy and makes compression faster compared to many web-based tools.

Key capabilities include batch processing for compressing many files at once, drag-and-drop workflows, and support for multiple media formats in a single tool. Users can also automate tasks with features such as folder monitoring, where new files placed in a folder are automatically compressed.

Compresto can reduce file sizes by up to around 90 percent depending on the file type and settings, helping users prepare media for email attachments, websites, social media, or cloud storage while keeping the original visual quality largely intact.