Pixel Peeper lets you check the Lightroom edits made to a JPEG
(Digital Photography Review)

Pixel Peeper is an EXIF viewer that will show how a JPEG was edited in Lightroom - provided it was, you know, edited in Lightroom. This photo wasn`t. Freelance web developer Piotr Chmolowski is the creator of Pixel Peeper, a simple web application that displays EXIF information and any Lightroom edits made to an image. By uploading any JPEG image (the site`s fine print states that photos are not saved to a server) you`ll see the camera and lens used to make the image, exposure settings, and the positions of each Lightroom adjustment slider - provided the owner of the image hasn`t chosen to hide that data. I made a little website that takes a JPG image and shows you how it was edited in Lightroom (+ camera settings)https://t.co/EFG3UhMdTS pic.twitter.com/P8EaienbZ2 - Piotr Chmolowski (@p_ch) June 19, 2017 The site is quick and certainly easy to use. Chmolowski mentions that he`s looking to add an option that would use an image`s URL rather than requiring the user to download an image they`re curious about. If you`ve often wondered how a particular image was edited, it might be worth bookmarking Pixel Peeper for future reference.