Save a JPG as a lossless PNG, so editing and saving again no longer adds compression damage. Free, no signup.
Leave both empty to keep the original size. Set one or both and the picture keeps its proportions; with both, it is fitted inside that box.
A PNG can be opened and saved again as many times as you like without picking up new JPG blockiness. That is the real reason to convert: a working copy to edit, a lossless source for a design, or a file for a program or print service that asks for PNG. What you do not gain is detail. The JPG threw some away when it was made, and the PNG is a faithful copy of what was left, artefacts included. In our test the decoded JPG and the PNG matched pixel for pixel.
A PNG of a photograph is commonly several times larger than the JPG it came from, because lossless compression cannot discard anything. The converter writes the PNG in its optimising mode, which makes it as small as it can be without changing a pixel, but a photo simply does not compress well that way. So convert when you need a PNG, not to save space. If you want a smaller file instead, PNG to JPG goes the other way, and a width or height typed above shrinks the picture itself.
This is the most common misunderstanding. A JPG has no transparency, so converting it cannot remove a background: a white background becomes a white PNG background, a blue sky stays a blue sky. Cutting out a subject needs a background remover, such as the one on kliptools.io, and PNG is then the right format to keep the result in.
Phone and camera JPGs often store a turn in a note rather than in the pixels. The converter applies that turn, so a portrait photo comes out upright even though the PNG carries no such note. The colour profile is carried over. The details stored around a photo, such as GPS position, date and camera model, are not written to the PNG, which makes it safer to share and means you should keep the JPG if you need them.
No. Detail that the JPG discarded is gone for good, and the PNG preserves the picture exactly as the JPG shows it, blockiness included. What it does is stop more damage: you can edit and save the PNG again and again without further loss.
Because JPG achieves its small size by discarding information and PNG does not. A photograph, with its endless small variations in colour, is the worst case for lossless compression. If size matters more than a lossless copy, stay with JPG or reduce the dimensions.
No. The converter does not guess what the background is, and a JPG has no transparent pixels to carry over. The PNG looks identical to the JPG. Use a background remover first if you want a cut-out.
.jpg and .jpeg are the same format with two spellings, and both are accepted in any letter case. Other endings are turned away before the file is uploaded, with a pointer to the all-format image converter.
No pixels are lost: the PNG holds exactly what the JPG decodes to. The camera data around the photo (GPS, date, camera model) is not copied, and a turned shot is stored upright.
Yes, because the conversion runs on our server and not in your browser. The JPG is processed in memory and discarded when the PNG has been sent back; we keep no copy. The limit is 50 MB per file.