Before After Image Comparison
Before/After Comparison — Compare Images Online
Compare two pictures (before vs. after) visually with a responsive divider slider. 100% client-side, zero server transfers.
How Compare Slider Works
Compare two photo edits visually in 3 steps.
Upload Dual Photos
Select your initial ("Before") image on the left, and the modified ("After") image on the right.
Slide Draggable Handle
Drag the visual divider partition horizontally or vertically to check transitions in high details.
Export Join Canvas
Generate side-by-side combined image grids and save composite outputs directly.
Why use our Comparison Slider?
Compare visual shifts in detail with a smooth, browser-rendered split handle.
Interactive Draggable Partition
Drag and inspect details smoothly with left/right or top/bottom alignment templates.
100% In-Browser Privacy
None of your photos are sent to servers. Slider overlays render inside browser memory cache locally.
Side-by-Side Canvas Merger
Download your comparison as a combined composite image, perfect for portfolio displays.
Frequently Asked Questions
Answers to the most common queries about our online slider comparator.
Q.Is the comparison slider free?
Yes, 100% free! You can compare images and download combined compositions without limits.
Q.Are my private photos uploaded anywhere?
Absolutely not. All comparison calculations and render overlays run locally in your web browser cache.
Q.Can I download the sliding animation itself?
No, browsers do not support saving HTML slider element interactions directly as static files. Instead, you can download a conjoined side-by-side PNG.
Q.What is the horizontal vs vertical layout?
Horizontal mode splits the image left-to-right (draggable slider moves horizontally), while vertical mode splits the image top-to-bottom (draggable slider moves vertically).