Free Batch Image Converter Uses Photopea to Handle HEIC, WebP, JPG at Scale

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Full-stack developer Mohamed ben mallessa has published a technical guide detailing how to batch-convert large volumes of images — including HEIC, WebP, and JPG formats — without paid tools or manual effort. The solution leverages Photopea, a free browser-based image editor, as a conversion engine driven by a custom script. Unlike ImageMagick, which requires specific codecs, or online converters with file-size limits, this approach handles hundreds of files locally without uploading them to any server. The script supports configurable output format, quality, and resizing, while preserving the original folder structure. Originally published as a GitHub Gist, the guide targets developers who regularly deal with bulk image processing workflows.

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