Image fit
Check upload limits and create a copy that fits your selected limits.
Make it fit. Know what changed.
Check an image against an upload limit, then create a copy that meets your selected limits. Your file stays in this browser.
Example: for a 200 KB upload with a 1,200 px longest edge, set 200 KB and both maximum dimensions to 1,200.
Choose a file to begin.
Compare detail
Use Overview to see both whole images. At 100%, one image pixel uses one screen CSS pixel; scroll either view to inspect the same area.