Analyze
Duplicate Image Checker
Compare multiple images with a local average-hash style workflow.
Drop images here
Click to browse, drag and drop, paste from clipboard, or use camera capture on mobile.
Live preview appears here.
Before and after
Upload an image to begin.
How to use Duplicate Image Checker
- Upload, drag, drop, or paste an image into the large upload area.
- Adjust the visible settings and use the live preview to confirm the result.
- Download the processed image or package multiple results as a ZIP.
Tips for better results
Use Duplicate Image Checker before uploading assets to a CMS, ecommerce page, ad platform, or social profile.
Keep the original file until you have checked the downloaded result.
For the smallest web files, compare JPG, PNG, and WebP output in the preview.
Supported formats
JPGPNGWebPAVIF where supported
Recently used tools
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AnalyzeColor PickerPick colors from uploaded images and copy HEX values.AnalyzeImage Color Palette ExtractorExtract dominant color swatches locally.AnalyzeImage Metadata ViewerView basic file metadata and image dimensions locally.AnalyzeImage Format DetectorDetect image format from MIME data and file extension hints.
FAQ
Is Duplicate Image Checker private?
Yes. Files are processed locally in the browser and are not uploaded by this static site.
Can I use Duplicate Image Checker on mobile?
Yes. The controls are mobile-first and work with touch, drag and drop where supported, and paste workflows.
Why does format support vary?
Some formats depend on browser-native decoding or local adapters. The page shows clear errors when a format is unsupported.