Upload two images and instantly see every pixel that differs between them, highlighted in red. Free, private, no upload.
1. Upload Two Images
Upload two images to compare them pixel by pixel
About the Compare Images Tool
Compares two images pixel by pixel and highlights every meaningful difference — useful for spotting edits, tracking design changes, or verifying two exports match.
100% Private — Processed in Your Browser
Every file stays on your device. DCPIXEL processes images entirely using the browser's built-in Canvas API and WebAssembly — zero server uploads, zero data collection.
Premium Features & Batch Processing
Get started with our free tier for single-file operations. Upgrade to DCPixel PRO to unlock high-speed batch processing, local AI background removal, and advanced PDF controls.
Frequently Asked Questions
What happens if the two images are different sizes?+
Both images are scaled down to match the smaller image's dimensions before comparing. If the two images have very different aspect ratios, this scaling can distort the comparison — for best results, compare images with the same aspect ratio.
What does the sensitivity slider control?+
It sets how large a color difference must be before a pixel counts as "different." Lower sensitivity flags only major changes; higher sensitivity flags even subtle ones.
Can I use this to check if two exported files are identical?+
Yes — a 0% difference result means the visible pixel content is identical, even if the file bytes differ due to compression.
User Reviews
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