Before and After Photos: How to Make One Comparison That Actually Reads

Two photos of the same thing, taken months apart, are almost impossible to compare when they sit in separate files. Open one, open the other, flip back and forth — and the eye keeps re-finding the same landmark. Put them in one frame and the change is obvious in a second.

This is a short guide to doing that well: what to shoot, which layout to choose, and what actually makes a comparison image readable.

Start with two photos that can be compared

A comparison only works if the two photos share something. The strongest pairs keep the camera still and change one thing:

• the same room, same corner, after the renovation
• the same person, same light, six months apart
• the same product, same angle, before and after cleaning

If the camera moved a lot, the image still works — it just changes from "look how much changed" to "here are two states". That is a layout decision, below.

Match the crop, not the colour

The single biggest mistake is framing one photo tighter than the other. If the before shot is head-and-shoulders and the after shot is a full-length portrait, a side-by-side puts a giant next to a small figure and the eye reads scale, not change.

Two ways out:

1. Crop both to the same framing before importing — the cleaner option.
2. Import as they are, then drag each photo inside its half so the same detail (a face, a door frame, a label) lands in the same place on both sides.

The tool never stretches a photo to fit. It fills the frame edge to edge and crops the overflow, which is why dragging matters: you choose what stays.

Pick the layout that matches the question

| Question the image answers | Layout | |---|---| | "Here are the two states, side by side" | Side by side | | "Watch the change happen" | Slider or GIF | | "Does everything line up?" | Overlay | | "Same frame, two moments" | Split view | | "One above the other, for a phone" | Vertical stack |

• Side by side is the safest for reports and listings: equal weight, no interaction needed to read it.
• Slider works when the camera did not move, because the same detail stays under the handle. As a still it shows one comparison; as a GIF or video it shows the sweep.
• Overlay puts the older photo on top at low opacity. If the two shots line up, the edges snap together and any drift is instantly visible — the fastest way to check alignment.
• Split view reads like an editorial page rather than a clinical report.
• Vertical stack is for phone screens and story formats, where width is scarce and height is free.

What makes the exported image readable

A few things separate a useful comparison from a confusing one:

• One subject per frame. Two changes at once and the viewer cannot tell which one they are looking at.
• Labels when context is missing. "Before" and "After" cost nothing and remove all doubt, especially if the two photos look similar.
• A divider you can see. A thin line or a gap helps the eye find the seam on busy backgrounds.
• Consistent size. Both halves at the same scale, so the change is the only variable.

Export the format the destination needs

• PNG for a report, a listing, a document — a still image that anyone can open.
• GIF for a loop that plays without a click, in a chat or a post.
• Video for feeds that prefer it: a three-second sweep reads faster than any caption.

All three are produced in the browser. Neither photo is uploaded, so nothing is waiting on a server and there is no copy of your images anywhere else.

A note on the free plan

Every layout, every template, the slider, the GIF and the video export are free and need no account. The first clean PNG export each day is unmarked; further PNGs that day carry a small corner mark, and there is a daily limit.

Pro — $4.98 per week, $9.80 per month or $59.80 per year, cancel any time — removes the mark and lifts the limit. Nothing else about the tool changes.