I run a small free tool called imgi . You drop in two images, drag a slider to compare them, and get a permanent link to paste anywhere. Before and after shots, mostly: a photo edit against the untouched shot, a game mod next to vanilla, an AI upscale against the source file.
Source: [Dev.to](https://dev.to/henrik_7c448da6b214e2348b/the-zero-egress-trick-that-lets-me-give-away-a-media-tool-for-free-4d7l)