Converting JPG to PNG takes one step here: drop the JPGs into the box above, and each is saved again as a PNG at the same dimensions by default, within browser memory limits. Do one file or a whole folder, then collect the PNGs in a ZIP. Your pictures stay in the browser the whole time, and there's no charge or signup. If what you really need is a PNG with a transparent background, a button on each converted file takes care of that as well.
What changes when a JPG becomes a PNG
With the default size setting, the picture doesn't. The converter decodes the JPG and stores its pixels in a PNG, a lossless format, so the PNG looks exactly like the JPG: the same size, the same colors, and the same compression marks. Detail the JPG discarded when it was saved can't be recovered by changing the format.
From now on, nothing more is lost. Each time a JPG is edited and saved again, its compression discards a little more. A PNG can be opened, changed and saved as often as you like without that loss. That makes a PNG the right working copy for a picture you'll keep editing; when you're done, convert the PNG back to JPG for sharing.
The file grows, usually by a lot for a photo, and the list puts the JPG's file size next to the PNG's so you can see by how much.
The metadata stays behind. The new file is encoded from the pixels alone, so it carries none of the JPG's camera details, date or GPS location.
Converting won't make the background transparent
Every pixel in a JPG has a color and nothing else, so the background is just more colored pixels, stored exactly like the subject. A converter copies all of them into the PNG, and you get the same picture, background and all. Renaming photo.jpg to photo.png does even less, because the data inside is still a JPG.
Transparency has to be created. Something has to decide which pixels belong to the subject, then mark the rest as transparent in the PNG's alpha channel, with partly transparent pixels where an edge is soft, as with hair. That's what the Remove background button on each converted file does: it opens a local AI editor below the converted files, and the cutout downloads as a free Preview PNG up to 0.25 megapixels, or a larger Max PNG for one image credit. Format conversion itself remains free at the original size. The separate main photo editor makes its free cutouts online from a reduced copy, which is usually quicker on phones.
Watch out for JPGs that only look transparent. Some images labeled "transparent" on download sites have a gray-and-white checkerboard painted into the picture. It's part of the pixels, so it survives conversion; treat it as background, and here's how to check whether a file is truly transparent.
When a PNG is worth it, and when to keep the JPG
| Where the picture is going | Best file |
|---|---|
| An email, a message or a social post | Keep the JPG; it's smaller, and a PNG adds nothing you'd see |
| A form or app that only accepts PNG | Convert to PNG |
| A picture you'll edit and save several times | A PNG as the working copy |
| A logo or cutout that must let the page show through | A transparent PNG, made with Remove background |
| A product listing on a plain white background | A JPG |
| A form or email that wants one document | A PDF, made with JPG to PDF |
Converting a batch
A batch needs no setup. Select every JPG in a folder with Choose images, or drag in a handful; .jpg and .jpeg both work. So do .jfif files, which are JPEGs with a different ending; JFIF to PNG explains them. The list fills in as each file finishes, and every PNG is named after its JPG: photo.jpg turns into photo.png, and a repeated name gets a number. Save the PNGs one by one or in a single ZIP, then clear the list for the next folder. One limit applies: a picture bigger than about 36 megapixels, or 16 on a phone, is scaled down so the browser can hold it, and its row mentions it.
The same list takes other formats too. iPhone photos in HEIC format can go straight to PNG, though most people want JPGs from them; the HEIC to JPG converter explains the differences. Images saved from websites as WebP files work the same way, as the WebP to PNG converter explains, and PNG output keeps any transparency they already have.
Changing dimensions when you need to
For an unchanged working copy, leave Resize by on Keep original size. If a PNG needs a specific width, expand Crop, resize and file size and set it there; the height follows in proportion. The image resizer has examples for mixed portrait and landscape batches. PNG has no quality or KB-target setting. If a smaller download matters more than retaining the decoded pixels, the image compressor explains the JPG and WebP choices. Open Preview to check the saved output before downloading.
Frequently asked questions
Does converting a JPG to PNG make the background transparent?
No. The PNG holds the same picture, background included. Click Remove background on the converted file, and the AI cuts out the subject and saves a PNG with the background made transparent.
Can I convert JPG to PNG on my phone?
Yes. Open this page in your phone's browser, choose the pictures and download the PNGs; the conversion runs on the phone. Pictures over about 16 megapixels are scaled down there, since a phone gives the browser less memory than a computer does.
Why is the PNG so much bigger than the JPG?
JPG throws away detail to stay small, while PNG stores every pixel of the decoded picture exactly, and exact storage of a photo takes more room. Nothing is added; the same pixels simply take more space.
Is converting JPEG to PNG any different?
No. JPEG and JPG are two extensions for the same format, and the converter opens files with either one.
How many JPGs can I convert at once?
There's no set limit. Add as many as you like; they convert one after another, and once two or more are done, one button saves them all as a ZIP. There's no signup, no watermark and no daily cap.
Are my JPGs uploaded?
No. The conversion, and the background removal if you use it, happens inside your browser, so no copy of your pictures goes anywhere.
Who owns the PNG I make?
You do, to the same extent you owned the JPG. Converting a file here gives the site no claim to it, so you can use the PNG in personal or commercial work as long as you were free to use the JPG.