Compresto is a macOS app that batch compresses videos, images, GIFs, and PDFs on the Mac itself, with hardware-accelerated encoding and no uploads. It can watch a folder, take files dropped on a floating Drop Zone, or run from Raycast, so a whole export folder shrinks without opening the app.

Up to 90% smaller: the vendor's own comparisons show a 32.1 MB 4K video at 13.3 MB (−59%), a 1 MB JPEG at 408 KB (−60%), and a 1.3 MB PDF at 281 KB (−78%).
Batch and automation: queue hundreds of files at once, compress new files the moment they land in a watched folder, and convert any video to a GIF.
One-time licences: Personal is $49 for one Mac and Standard is $98 for two Macs, both with lifetime updates, and the app needs macOS 13 or later on Intel or Apple Silicon.

All processing happens locally, so files never leave the machine, and a free browser compressor covers a single image without a purchase.