JPEG to PNG
Convert JPEG images to lossless PNG files.
JPEG's lossy compression is great for small file sizes, but every re-save loses a little quality, and it has no support for transparency. Converting to PNG gives you a lossless copy to work from — ideal before editing, layering, or adding a transparent background.
This tool decodes your JPEG in memory and re-encodes it as a PNG with no quality loss. Because PNG is lossless, the output file will usually be larger than the original JPEG; that's expected and is the tradeoff for pixel-perfect accuracy. Nothing is written to disk and no file is stored after your download finishes.
Good for: preparing a photo for editing in design software, embedding an image in a document or presentation that expects PNG, or avoiding further generation loss from repeated JPEG re-saves.