How to Convert PNG to JPG on Any Device (Online, Mac, Windows, iPhone)

You have a PNG image, but the website, form, or app you are using only accepts JPG. Or your PNG files are simply too big to email. Either way, you need to convert PNG to JPG, and you want it done quickly without installing anything.

This guide shows you how to convert PNG to JPG online, on a Mac, on Windows, and on an iPhone. It also explains what happens to transparent backgrounds and image quality, so there are no surprises in the result.

Quick Answer: How to Convert PNG to JPG

1. Open our free PNG to JPG converter in any browser.
2. Drag and drop your PNG images, or click Select Files.
3. Click Convert.
4. Download your JPG files. Several images are downloaded together in a ZIP file.

That's it. The rest of this guide covers other methods and the details that matter.

PNG vs JPG: Why Convert at All?

Both formats are everywhere, but they are built for different jobs:

	PNG	JPG
Compression	Lossless (every pixel is kept)	Lossy (small details are simplified)
File size	Large, especially for photos	Small
Transparency	Supported	Not supported
Best for	Logos, screenshots, graphics with text	Photos, sharing, uploading

Converting a PNG to JPG makes sense when:

• A site or form only accepts JPG. Many job portals, government forms, and online shops still require JPG images.
• The file is too big. A photo saved as PNG can be several times larger than the same photo as JPG.
• You want faster sharing. Smaller JPG files upload and send much faster, especially on a phone.

Method 1: Convert PNG to JPG Online (Any Device)

An online converter is the simplest option because it works the same way on every device and can convert many files at once.

1. Open the tool. Go to the PNG to JPG page.
2. Add your images. Drag and drop your PNG files or click Select Files. You can add up to 50 images at once, up to 200 MB each.
3. Rotate if needed. If a picture is sideways or upside down, rotate it before converting.
4. Click Convert. Your PNG images are converted to JPG with a high quality setting.
5. Download. Save one JPG, or download all of them in a single ZIP file.

There is no sign-up and no watermark, and your files are deleted from our servers automatically after one hour.

Method 2: How to Convert PNG to JPG on Mac

macOS has two built-in ways to convert a PNG image to JPG.

Using Preview

1. Double-click your PNG to open it in Preview.
2. Click File > Export.
3. In the Format menu, choose JPEG.
4. Move the Quality slider (higher means better quality and a bigger file).
5. Click Save.

Using Finder Quick Actions (several files)

On macOS Monterey or later, you can convert several images straight from Finder:

1. Select your PNG files in Finder.
2. Right-click and choose Quick Actions > Convert Image.
3. Choose JPEG as the format and pick an image size.
4. Click Convert to JPEG. The new JPG files appear next to the originals.

If you are on an older Mac, or you want the same steps on every computer you use, the online converter works in Safari too.

Method 3: How to Convert PNG to JPG on Windows

Every Windows PC includes Paint, which can save a PNG as a JPG:

1. Right-click your PNG file and choose Open with > Paint.
2. Click File > Save as > JPEG picture.
3. Choose a name and location, then click Save.

Paint converts one image at a time. To batch convert PNG to JPG on Windows, use the online tool in Edge or Chrome and download everything in one ZIP file.

Method 4: How to Convert PNG to JPG on iPhone

Screenshots taken on an iPhone are saved as PNG files, which is why this question comes up so often. The easiest way, without installing an app:

1. Open Safari and go to the PNG to JPG page.
2. Tap Select Files and choose Photo Library or Browse to pick your images.
3. Tap Convert, then download your JPG files.
4. The files are saved in the Files app, in your Downloads folder. To add an image to your Photos, open it in Files, tap the share button, and choose Save Image.

The same steps work on an iPad and on Android phones in Chrome.

How to Batch Convert PNG to JPG

If you have a whole folder of PNG images, converting them one by one is a waste of time. With the online converter, you can select up to 50 PNG files at once. All of them are converted in one go and downloaded together in a single ZIP file. On a Mac, Finder Quick Actions can also convert several files at once.

What Happens to a Transparent Background?

This is the most important thing to know before you convert. JPG does not support transparency. When a PNG with a transparent background is converted, the transparent areas have to be filled with a color. Our converter fills them with clean white.

That's fine for most photos and screenshots. But if your image is a logo or an icon that needs to sit on top of other colors, keep it as a PNG. Once it is saved as JPG, the transparency is gone.

Does Converting PNG to JPG Reduce Quality?

A little, yes. JPG uses lossy compression, which is exactly what makes the files so much smaller. With a high quality setting, as our converter uses, photos look practically the same as the original.

The difference can be more visible on images with sharp edges and flat colors, like screenshots with small text, charts, or logos. If you look closely, you may see slight blur or speckles around the text. For those images, PNG is often the better format, unless you specifically need a JPG.

Tip: Convert a copy and keep your original PNG. That way, you can always go back to the full-quality version.

Frequently Asked Questions

How do I convert PNG to JPG for free? Use our free PNG to JPG converter: upload your images, click Convert, and download the JPG files. There is no sign-up and no watermark. On a Mac you can also use Preview, and on Windows you can use Paint.

Can I convert many PNG files to JPG at once? Yes. You can convert up to 50 PNG images in one batch online and download them all in a ZIP file. On a Mac, Finder Quick Actions can also convert several images at once.

Why did my transparent background turn white? Because the JPG format cannot store transparency. The transparent areas are filled with white during the conversion. If you need to keep the transparent background, keep the image as a PNG.

Is JPG smaller than PNG? Usually, yes, especially for photos. A photo saved as JPG is often several times smaller than the same photo as PNG, which makes JPG better for email and uploads.

Can I convert a JPG back to PNG? Yes, with our JPG to PNG tool. Keep in mind that this won't bring back any detail lost when the JPG was created, and it won't restore a transparent background.

Conclusion

Converting PNG to JPG takes only a few seconds. Preview on a Mac and Paint on Windows work well for single images. For batches of files, or when you are on a phone, the free online PNG to JPG converter is the fastest option. Just remember that transparent areas become white, and keep your original PNG if you might need it later.