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macOS and Windows. Your files stay on your computer.

Create before and after image comparisons on your Mac or PC

Turn two photos into a before and after a client can feel: an interactive slider in one HTML file, an animated GIF, or a still in six layouts. Test the slider in the Image Comparison studio before you export. Both photos stay on your computer.

Download for Mac Download for Windows

Intel Mac or need help installing? All downloads

Hangar runs on Mac and Windows. Open this page there to download.

  • Free for 3 days
  • No account
  • Then $45 once, no subscription

The real app with a real file, recorded on screen.

Tour the Studio

How to make a before and after image on Mac or Windows

Each mark is a moment in the recording above. Pick one to play it from there.

Image Comparison in three steps

  1. Add your two images

    The first is Before, the second After. Photos, SVG and camera RAW all work; Swap flips them.

  2. Pick HTML, GIF or Image

    Set the starting position, labels, divider and handle. Choose a layout for stills.

  3. Export and share

    Send the file, or copy the slider’s HTML into your site. It needs nothing from the internet.

New to Hangar? How to run a tool, step by step

Choose the format

One pair. A slider, a loop or a still.

The slider and the GIF use the Seam layout, one frame with a movable cut. Stills can also be a Pair, a Masthead, a Contact print, an Overlap or a Cover with a headline.

  • HTML slider

    Start here

    Drag the divider to reveal Before and After.

    Best for client pages, portfolios and case studies.

  • Animated GIF

    The divider sweeps across on a loop.

    Best for social posts, email and chat.

  • Still image

    PNG or JPEG in one of six layouts.

    Best for decks, print and feeds that need one frame.

Every setting, explained in the Image Comparison guide Output format · Layout · Starting position · Seam angle · Labels

The alternative

Why not use a slider plugin or a web tool?

Slider plugins and web tools are often free and fit neatly into a site builder. They need your images hosted online, and they make a slider and nothing else.

ComparedSlider plugins and web toolsHangar
PriceOften freePay once
Where your photos goHosted onlineStay on your computer until you share
What you getA sliderA slider, a GIF or a still in six layouts
What your site needsA plugin or a scriptOne self-contained HTML file
RAW and HEIC photosConvert them firstRead directly

Who uses it

Who uses Image Comparison

  • Photographers

    Retouching you can show off

    Put the raw frame and the final edit side by side as a slider on your portfolio.

    Hangar for photographers
  • Renovators

    Before and after for a listing

    Show a room before and after the work as a GIF a client can forward.

  • Agencies

    Redesigns a client can feel

    Drop a slider of the old and new site into a case study page with one paste.

    Hangar for agencies and studios

One app, one payment

Image Comparison is one of 74 tools.

The same app converts, compresses, resizes and cleans up photos, and does the same kind of work for PDFs, video and audio. One payment covers every tool.

A typical routine

Where Image Comparison fits

  1. Step 1Crop image
  2. Step 2Watermark
  3. Step 3Image Comparison

Crop both shots to the same frame and mark them as yours, then build the before and after for the client.

Questions

Before you download

More answers in the help center.

Is it really free?

Every tool is free for 3 days, with no account and no card. After that, Hangar is a one-time payment from $45, with updates for the version you buy. There is no subscription.

How do I put the slider on my website?

Upload the .html file and link to or embed it. Or click Copy HTML after the export and paste the code where your site builder accepts custom HTML.

Does the HTML file reveal anything about my photos?

Camera and location data are not copied. The two file names, without extensions, are written in as image descriptions, so rename private files first.

How many images does it take?

Exactly two. The first in the queue is Before and the second is After. If you add more, Hangar asks you to remove the extras.

Does the HTML slider need an internet connection?

No. The file embeds both images and contains no external scripts or links, so it works from a folder as well as from a web page.

Why is the slider unavailable for some layouts?

Only the Seam layout is a single frame with one cut for a slider or a sweep to move. The other layouts show two separate frames, so they export as a PNG or JPEG.

What if my two images are different shapes?

Hangar flags the mismatch. Cover crops both to one frame, and Contain keeps every edge. Best results come from images taken from the same viewpoint.

Does anything get uploaded?

No. Your files are processed on your computer and never sent anywhere. Hangar sends anonymous usage counts to improve the app, never file names or contents, and you can turn that off in Settings.

Does one license cover Mac and Windows?

Yes. A license works on any mix of Mac and Windows computers. Solo covers 1 computer, Crew 3 and Fleet 10.

Try Image Comparison free for 3 days.

Then pay once, from $45, for every tool and the updates for your version. No subscription. 30-day refund.See plans

Download for Mac Download for Windows

Intel Mac or need help installing? All downloads

Hangar runs on Mac and Windows. Open this page there to download.