Image Compare
Compare Two Images & Pictures Online
Compare two images online and spot even the smallest differences between photos, screenshots, and design mockups. Five modes - Side by Side, Fade, Slider, Highlight, and Subtract - cover everything from a quick before-and-after to pixel-level visual testing.
Your pictures stay completely private - the comparison runs in your browser with nothing uploaded to a server. Safe for unreleased designs, private photos, medical imagery, and anything you'd rather keep off someone else's servers. No watermarks, no analytics, nothing kept once you close the tab.
Five Ways To Compare Images And Photos
Pick the mode that fits what you're trying to see. Switch between them freely without re-uploading.
Side By Side
Both pictures in two panels next to each other. Quickest way to scan for layout, composition, or framing changes.
Fade (Opacity Overlay)
Stacks both images and blends between them with a slider. One picture dissolves into the other - perfect for finding subtle changes in the same scene.
Slider (Swipe Reveal)
Drag a vertical divider to reveal one picture beneath the other. The classic before-and-after view for photographers and designers.
Highlight (Glow Diff)
Every pixel that differs lights up in bright magenta while the rest dims. Fastest way to answer 'what actually changed?' on a busy picture.
Subtract (Pixel Difference)
Identical areas turn black, differences show as their colour delta. Catches compression artefacts, hidden watermarks, and shifts the eye would miss.
Supported Image Formats
PNG, JPEG, WebP, GIF, SVG, and HEIC all work out of the box. Mix formats freely - drop a JPEG on the left and a WebP on the right.
Lossless with alpha transparency
Photos and high-colour images
Modern web format, smaller than JPEG
Simple graphics and short animations
Vector graphics, rasterized for pixel diff
Apple device photos, iOS and macOS
How To Compare Two Pictures Online
Four steps. No sign-up, no installation.
Upload The First Image
Drag your picture onto the left panel or click to pick it. Loads straight into the browser.
Upload The Second Image
Drop the second picture on the right. Both line up automatically.
Choose A Mode
Pick Side by Side, Fade, Slider, Highlight, or Subtract. Switch freely without re-uploading.
Zoom And Inspect
Zoom and pan into any area. Start with Highlight to find changes, then flip to Slider for a clean before-and-after.
Why Use This Image Compare Tool
Free, private, no watermarks. Built for quick photo comparisons and detailed pixel-level work alike.
Instant Results
Comparison starts the moment both pictures load. No button, no delay - just drop and look.
Private
Nothing uploaded to a server. Safe for unreleased mockups, product photos under embargo, and medical scans.
Pixel-Perfect Precision
Highlight and Subtract pick up single-pixel changes the eye would miss. Useful for watermark checks and compression audits.
No Watermarks
Nothing stamped on your exports. Images come out exactly the way they went in.
Full Image Details
Resolution, DPI, colour depth, format, subsampling, interlace, EXIF orientation - catches non-visual differences that matter for print or web.
Works On Mobile
Pinch to zoom, swipe to pan. Every mode works on phones and tablets.
Compare Screenshots
Load two screenshots, flip between Highlight and Slider, and every rendering difference shows up without writing a pixel-diff script.
Photos, Screenshots, Designs
Any two pictures you can open in a browser.
Photography And Editing
Before-and-after retouching, export variations, colour grading iterations, format conversions.
- Before-and-after checks on retouched photos
- Comparing compression quality (JPEG vs WebP)
- Reviewing RAW versus processed images
- Spotting changes across colour grading iterations
- Checking export consistency across formats
Design And UI
Design iterations, brand assets, UI changes. Pair Highlight with Slider to spot subtle visual diffs.
- Reviewing UI mockup iterations
- Comparing logos and brand assets
- Checking Figma exports against the live site
- Comparing website screenshots between versions
- Auditing email template renders
QA And Visual Testing
Cross-browser checks, visual regression snapshots, scanned document verification.
- Visual regression snapshots
- Cross-browser rendering checks
- Verifying scanned documents
- Comparing receipts and invoices
- Diffing charts across sessions
Compare Two Images Online
Drop the first picture into the left panel and the second into the right. Both load in your browser with no upload and no sign-up. Works as a photo comparison tool, an image difference finder, and a pixel-level diff all in one.
Side by Side for a quick glance. Fade and Slider for before-and-after where only the contents changed. Highlight for finding every changed pixel on busy pictures. Subtract for pixel-level analysis - compression artefacts, watermarks, and tiny shifts the eye would miss.
Frequently Asked Questions
How do I find differences between two images?
Upload both pictures, then pick Highlight to see every changed pixel lit up in magenta, or Subtract to see only the colour delta on a black background. Slider and Fade are better when you want to see both versions in context.
Can I compare two photos side by side?
Yes. Side by Side mode puts both photos next to each other - fastest way to do a quick before-and-after comparison.
How does Highlight mode work?
Goes pixel by pixel and lights up every difference in bright magenta while dimming the rest. Your eye is pulled straight to what changed.
What is Subtract mode for?
Subtracts one picture from the other. Identical areas turn black, differences show as their colour delta. Best for catching watermarks, compression artefacts, and tiny shifts.
Can I compare pictures of different sizes?
Yes. Both are aligned at the top-left corner. Areas that don't overlap are treated as differences.
What formats are supported?
PNG, JPEG, WebP, GIF, SVG, and HEIC. Mix formats freely - SVG is rasterized at load time for pixel comparison.
What details does it show beyond the pixels?
File type, file size, dimensions, DPI, colour depth, subsampling, interlace method, and EXIF orientation.
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