Image Comparator

A FREE, offline, multi-language image comparison app.

Image Comparator is the most beautiful and complete way to compare two images on Android — and every feature is completely free.

Whether you're a designer reviewing before/after edits, a photographer checking two shots, a developer comparing UI screenshots, or just curious how two pictures stack up — Image Comparator gives you six powerful comparison modes in one elegant app.

Six Comparison Modes:

Slider — Drag a vertical line left and right to reveal one image over the other. The classic before/after view.

Side by Side — Two images placed next to each other for quick visual comparison.

Stacked — Images placed top-to-bottom, perfect for landscape photos.

Onion Skin — Blend the two images with adjustable opacity to spot tiny shifts and alignments.

Pixel Difference — Heatmap visualization that highlights exactly where the two images differ, with adjustable sensitivity. See match percentage, changed pixel count, and mean pixel difference in real time.

Flicker — Rapidly alternate between the two images at adjustable speed. The fastest way to spot subtle changes.

Built for Detail

- Pinch to zoom up to 8× with smooth two-finger panning
- Synchronized zoom and pan keeps both images aligned
- Double-tap to reset the view instantly
- Swap A/B with one tap
- A/B labels that can be toggled on or off

Detailed Image Info
Get rich information for every image you load:

- Dimensions, aspect ratio, and megapixel count
- File size and image format
- Side-by-side comparison stats
- Visual similarity score computed pixel-by-pixel

Beautifully Designed

- Clean, modern interface with smooth animations
- Light and dark themes that follow your system settings
- Optimized for one-handed use

Export & Share

Export your comparison as a high-resolution PNG (1024×1024) — slider position, dividers, and labels all baked in. Share it directly with anyone.

100% Private

Your images never leave your device. Image Comparator works completely offline with no servers, no uploads, and no cloud processing.

Completely Free

Every feature, every mode, every export — all of it, free. No paywalls, no premium tier, no hidden costs.

Frequently used by:

- Designers reviewing before/after edits
- Photographers comparing shots
- Developers diffing screenshots and UI states
- Quality assurance and visual regression testing
- Spotting forgeries or manipulated images
- Anyone who just wants to compare two pictures