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Convert JPG to PNG
Convert JPG images to lossless PNG format — free, private, no upload required.
About this tool
The browser's Canvas API decodes your JPG and re-encodes the raw pixel buffer as a lossless PNG — no data is quantized or discarded during the conversion. This is the format switch to make before heavy editing, because every subsequent save will be bit-for-bit identical. Supports batch conversion and produces files ready for transparency workflows in Photoshop, Figma, or any editor that reads PNG alpha channels.
Frequently Asked Questions
Processed using the browser's built-in Canvas API — no external libraries