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Browser-Based Image Resizer Verified to Process Files Locally Without Uploads

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A developer building Shard Tools created a 200×200 image resizer that processes files entirely within the browser, avoiding the need to upload images to a remote server. The tool offers two resizing modes — crop to fill and fit with background — both of which preserve the original aspect ratio rather than distorting the image. To back the local-processing claim, the developer built a dedicated verification page that monitors network requests via fetch, XMLHttpRequest, and sendBeacon before and after a resize operation. When the request count difference is zero, no image data has been transmitted through those channels, a result users can independently confirm using their browser's Network panel. The developer acknowledged that the page still makes standard requests for assets like HTML, JavaScript, and fonts, but maintains that image selection and processing should add no upload request.

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Browser-Based Image Resizer Verified to Process Files Locally Without Uploads · ShortSingh