Image Comparison Slider
Build before/after comparison images with an adjustable slider.
How to use Image Comparison Slider
Follow these steps — everything happens instantly in your browser.
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Step 1. Drop your “before” image in the left zone and the “after” image in the right zone.
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Step 2. Drag the slider position to set the split point.
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Step 3. Click “Download comparison PNG” to export the composed image.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about image comparison slider.
Image Filters
Apply grayscale, sepia, blur, brightness & more with live preview.
Image Cropper
Drag a crop rectangle to crop your image to the perfect frame — free or locked to an aspect ratio.
Image Watermark
Stamp a text or image watermark onto any picture — pick position, opacity, size.
Photo Editor
All-in-one photo editor: brightness, contrast, saturation & 7 presets.