Image Duplicator

Duplicate an image into multiple files

This tool creates exact byte-for-byte copies of an uploaded image — useful for bulk-testing upload forms, generating placeholder assets, seeding a design mockup with repeated thumbnails, or preparing identical files with sequential names for a batch process. Everything runs locally in your browser using the File and Blob APIs; nothing is uploaded anywhere. Set how many copies you need and a filename prefix, then download each copy individually or grab them all at once as a ZIP archive. For resizing or converting the copies afterward, try the Image Resizer or Image Compressor.