Before After Image Comparison Widget for Website: A Premium Before/After Slider
Use a before/after image comparison widget to show transformations: orientation, focal point alignment, handle styling, and a CLS-safe embed.
When to use a before/after image comparison widget
A before/after slider is ideal when you need visual proof:
- Renovations and transformations
- Photo edits and retouching
- Design revisions (UI/UX, branding)
The key is a stable layout (no CLS) and a handle that feels good on touch.
Build it in GizmoSauce
Start here: /widgets/before-after
Open the editor: /get-widget/before-after
Upload/select your images, set aspect ratio, then embed it with Save & Get Code.
Image fit + focal point (why your slider may look wrong)
Most issues come from cropping.
- Use
coverfor the best premium look. - If the subject is cut off, tune Image Position (X/Y) independently for Before and After.
This keeps the comparison meaningful without re-editing source images.
Use cases beyond renovations
Image comparison isn’t just for construction or makeovers.
Common use cases:
- Product customization (colorways, finishes, variants)
- UI redesigns (before/after screens)
- Photo retouching (raw vs edited)
If your audience needs a fast “what changed?” moment, a before/after widget is a high-trust pattern.
Interaction + accessibility
Use Drag when you want a clear “grab the handle” interaction.
Use Hover compare when you want a lightweight desktop-only feel.
Make sure keyboard users can still use the slider (arrow keys/home/end).
Competitor check: what usually goes wrong
Before/after sliders are deceptively easy to ship—and many implementations miss key details.
Common issues in generic plugins:
- No reserved height (CLS when images load)
- Weak mobile/touch handling
- No keyboard support
- Styling that fights the site theme
If you’re comparing tools, prioritize CLS safety, touch UX, and accessibility—not just “it drags.”
FAQ
What aspect ratio should I use?
Can I change label and handle styling?
Does it work on mobile?
