This is useful for preserving the original JPEG file as long as possible while preserving metadata like dimensions and quality. “ImageOptim — Compressor, JPEG Optimizer, Image Decompress or” by Mac OS X Images that are too big to handle locally on your computer or that need to be shared with your team can then be easily and cost-effectively compressed and hosted with ImageOptim on Mac. Mac OS X 10.18 and later — the official macOS 10.18 release note If you are a Mac user, you can use the image optimizer in Mac to easily handle JPEG files and save them using a lossless compressed format for online storage, like Dropbox, Google Drive, Picks, iCloud Drive and Microsoft OneDrive. This is one of the most useful apps for the Mac, along with ImageOptim. Lossless JPEG Optimizer for Mac — Mac OS X (or later) It is very important that lossless, high-quality file compression is always implemented. For images on the web, you should have a good idea whether an image is compressed or not. If your image contains a lot of fine detail, compression is almost never recommended for small images. Otherwise, if you can compress an image to the minimum and use as little space as possible, that would be the best solution.