Developer builds browser-based image converter that keeps files off servers

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A developer built ImagArt AI, a free image conversion tool that processes files entirely within the user's browser without uploading them to any remote server. The tool uses built-in browser APIs such as Canvas, toBlob(), and toDataURL() to decode, resize, and re-encode images to JPG, PNG, or WebP formats. It supports batch uploads and ZIP export, with all processing handled by the user's own device CPU. The motivation was to address privacy concerns with mainstream free converters, which typically require files to be sent to external servers. The developer noted that while the client-side approach eliminates server costs and privacy trade-offs, processing very large batches of high-resolution images can strain performance without careful use of Web Workers.

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