Image Comparison Slider
Place two images side by side with a drag slider to compare differences. Perfect for before/after comparisons. Free, browser-based.
🖼️ Image Tools
Free
Browser-based
When to Use a Comparison Slider
Before/after comparison sliders are ideal for showing the effect of image editing, compression, retouching, background removal, photo restoration or any processing step. A single draggable divider lets viewers judge the difference far more intuitively than two side-by-side thumbnails.
Tips for Best Results
| Tip | Why it helps |
|---|---|
| Use identical dimensions | Prevents misalignment between the two layers |
| Before = unedited original | Gives a consistent baseline for comparison |
| High-contrast differences | Makes the slider comparison more impactful |
| Start handle at 50% | Shows both sides equally before exploring |
Common Use Cases
Image compression quality checks, photo retouching results, background removal, restoration of old photos, filter and colour grading comparisons, and web design screenshots before and after a redesign.