ALL IMAGE TOOLS56
JPG to PNG
Convert JPG to PNG Online — Free, Lossless
Convert JPG to lossless PNG format — supports transparency.
About JPG to PNG
While JPG is the most common image format, there are times when you need a lossless format like PNG — for example, when editing images that will be re-saved multiple times, when you need transparency support, or when working with graphics that have sharp edges and text. JPG uses lossy compression, which means each time you edit and re-save a JPG, quality degrades slightly. Converting to PNG first preserves the current quality and prevents further degradation during your editing workflow. This tool converts your JPG files to PNG format entirely in your browser using the Canvas API. The resulting PNG is lossless, so no additional quality is lost during conversion. This is particularly useful for designers who need to add transparent backgrounds to photos, developers creating image assets for apps, or anyone preparing images for a workflow that requires lossless formats.
Questions
Why convert JPG to PNG?
PNG is a lossless format — converting to PNG prevents further quality degradation if you plan to edit the image multiple times. PNG also supports transparency, which JPG does not.
Will the file be larger after converting to PNG?
Yes, PNG files are typically 2-5x larger than JPGs for photographs because PNG uses lossless compression. This is the trade-off for zero additional quality loss.
Can I add transparency after converting to PNG?
The conversion itself doesn't add transparency — it converts all pixels as-is. But since the result is now a PNG, you can open it in an image editor and add transparency by removing the background.
Does the PNG keep my photo's EXIF data?
No. The conversion redraws the image through a canvas, which carries pixels only — EXIF tags, GPS coordinates, and color profiles are all dropped from the output. If you want to see what's being removed first, the EXIF Data Viewer & Remover lists every tag.
Can converting to PNG bring back quality the JPG already lost?
No — JPG's compression artifacts are baked into the pixels, and the PNG preserves them faithfully along with everything else. There is no enhancement step; converting locks in the quality you have rather than restoring what was lost.
Is my file uploaded to a server?
No. Transmute processes everything locally in your browser using JavaScript and WebAssembly. Your files never leave your device — there is no server, no upload, no cloud processing.