Is my image uploaded to a server?

No. Conversion runs entirely in your browser with the Canvas API.

Will quality improve when converting JPG to PNG?

No. PNG is lossless but cannot restore detail already lost in JPEG compression. File size may increase.

25 MB and 8192 px per side by default.

Canvas re-encodes pixels, so EXIF and color profile metadata from the original JPEG are not preserved in the PNG output.

PNG is lossless and often bigger than JPEG for photos. Expect larger files even when visual quality looks similar.

Re-containerize a JPEG as a PNG file using the Canvas API in your browser. Useful when a pipeline or tool requires lossless PNG output.

JPG image

Drag and drop file here, or click to browse

PNG output

Select an image to begin.

: No. Conversion runs entirely in your browser with the Canvas API.
: No. PNG is lossless but cannot restore detail already lost in JPEG compression. File size may increase.
: 25 MB and 8192 px per side by default.
: Canvas re-encodes pixels, so EXIF and color profile metadata from the original JPEG are not preserved in the PNG output.
: PNG is lossless and often bigger than JPEG for photos. Expect larger files even when visual quality looks similar.