Convert JPG images to PNG, in batches.
Quick answer
JPG is lossy and best for photographs, with small files and no transparency. PNG is lossless and can keep transparent areas, but converting a JPG to PNG does not restore detail the JPG already lost and makes the file larger. Convert to PNG when you need transparency later or a lossless working copy.
| Format | Compression | Transparency | Best for | Support |
|---|---|---|---|---|
| JPG | Lossy | No | Photographs | Opens everywhere |
| PNG | Lossless | Yes, including partial | Screenshots, logos, graphics | Opens everywhere; larger files |
These figures are computed with the same formulas as the JPG to PNG Converter above. Change the inputs in the tool to see your own result.
JPG to PNG converts JPG photos into PNG files, up to 30 at a time, in your browser. PNG is lossless, so a PNG copy can be opened, edited and re-saved as often as you like without the further quality loss that repeated JPG saving causes, and it is the format to use when you plan to add transparency, layers or text on top. The converter keeps the picture upright, shows each result's size and lets you download the files singly or as a ZIP. Nothing is uploaded.
Made for everyone. Typical uses:
A 1.2 MB JPG photo becomes a PNG of about 5 to 12 MB, depending on its detail. The picture looks the same as the JPG, because PNG cannot recover detail the JPG has already thrown away; what you gain is a format that will not degrade further when you edit and save it.
PNG files of photographs are several times larger than JPG. Converting does not improve the picture, add transparency or restore lost detail. If you only want smaller files, use JPG or WebP, not PNG.
Accuracy: Conversions use well-known methods and are tested with real sample inputs. Check the output before you send or publish it.
Expert Tip
Convert to PNG at the start of an editing session, do all your edits, then export to JPG or WebP once at the end for sharing. Keep the original JPG as well: it is the smallest copy and holds the camera details that the PNG will not carry.
A JPG is a lossy picture: to save space, it has already thrown away detail that the eye is unlikely to miss. A PNG is lossless: it stores every pixel exactly as given. Converting a JPG to PNG therefore does not bring anything back. The PNG looks the same as the JPG, and the file is larger. What you gain is stability. From that point on you can edit and save the image as many times as you like without losing more detail, which is not true of JPG, where each save compresses again.
That makes the conversion useful in a few specific cases and pointless in others. Knowing which is which saves you from producing files five times bigger for no benefit.
These are the situations where PNG helps.
If your goal is a smaller file, PNG is the wrong direction. A 1.2 MB JPG can become a PNG of 5 to 12 MB depending on its detail. If the picture is only going to be viewed, shared or posted, keep the JPG, or move to WebP with JPG to WebP for an even smaller file. If it is going into a document, the JPG will keep the document light.
Also remember that conversion does not create transparency. A photo with a white background is still a photo with a white background as PNG. To remove a plain background, use the Background Remover on the converted file.
Photos carry hidden information: the camera model, the date and time and often the GPS location where the picture was taken. When the converter redraws the image and saves it as PNG, that metadata is not copied across, so the PNG does not reveal where the photo was taken. This is a useful side effect if you plan to publish the picture, but it also means the PNG loses the shooting details. If you need them, keep the original JPG as your record.
The picture is processed only inside your browser, so it is never sent to a server.
Once you have a PNG, treat it as your editing master. Crop it with the Image Cropper, resize it with the Image Resizer and make your changes in one session. When you are done, export a single JPG or WebP for sharing, so the picture is compressed only once. Keep the PNG so you can return to it without a further loss of quality.
Photos taken sideways on a phone come out upright. Each result shows its size, and you can download files individually or as a ZIP of up to 30. For the opposite direction, PNG to JPG makes photographs and screenshots much smaller, with a colour for transparent areas.
If you are unsure whether you need PNG at all, JPG vs PNG vs WebP explains the trade-offs, and the Image Converter covers all three formats in any direction. Everything happens in your browser, and nothing is uploaded.
The real differences between PNG and JPG, when converting is useful, how transparency and file size change, and how to convert a batch with the right quality.
Explore more in Converters, read the guides and articles, or see how we test our tools.
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