How to Convert JPG to PNG: Easy Step-by-Step Guide

To convert JPG to PNG, open your JPG image in an online converter or image editor, select PNG as the output format, and save or download the newly converted file. You can also use built-in applications such as Microsoft Paint on Windows or Preview on Mac.

This guide explains how to convert JPG to PNG step by step, verify that your file was converted correctly, and understand what happens to image quality, transparency, and file size.

How to Convert JPG to PNG Online

An online converter lets you change an image's format without installing additional software.

You can use theToolsBench JPG to PNG converter to perform the conversion.

Step 1: Open the JPG to PNG Converter

Open the ToolsBench converter in your web browser and locate the JPG image you want to convert.

Step 2: Select Your JPG Image

Use the converter's file-selection option to choose the JPG from your device.

Make sure you have selected the correct image before continuing.

Step 3: Convert the Image to PNG

Follow the on-screen instructions to convert the selected JPG into PNG format.

A proper conversion creates a PNG-encoded image rather than simply changing the original file's extension.

Step 4: Download and Check the PNG

Download the PNG when it is ready, then open it to confirm that it displays correctly.

If you need the file for a form or application, check any additional requirements, such as file size or dimensions.

How to Convert JPG to PNG on Windows

Microsoft Paint offers a built-in way to convert JPG images to PNG on Windows without using an online converter.

Convert a JPG Using Microsoft Paint

1. Locate your JPG image and open it in Microsoft Paint.
2. Open the File menu and find Save as.
3. Choose PNG picture, or select PNG from the available save-format options.
4. Enter a filename and choose where to save the converted image.
5. Save the file, then open the new PNG to check the result.

Menu names and locations may vary slightly between Paint versions.

Consider naming the output photo-converted.png so you can distinguish it from the original photo.jpg.

How to Convert JPG to PNG on Mac

Mac users can convert JPG files with Preview, the built-in image and PDF viewing application.

Convert a JPG Using Preview

1. Open the JPG image in Preview.
2. Select File → Export.
3. Open the Format menu and choose PNG.
4. Choose a filename or save location.
5. Click Save.

Preview exports the image as PNG using the selected settings.

Open the saved file to confirm that it displays correctly.

These steps are also described inApple's official Preview conversion guide.

How to Check If Your Image Was Converted to PNG

After converting your JPG, verify the result—especially when a website or application specifically requires PNG.

A .png filename is useful, but it does not prove that the file contains PNG-encoded image data.

Check the File Format, Not Just Its Extension

For example, renaming photo.jpg to photo.png changes the filename but leaves the original JPEG encoding unchanged.

An actual conversion reads the JPG and creates a new PNG-encoded file.

To verify the result, open the file in an image viewer or editor that can identify the actual file format from its contents, rather than relying only on the filename.

Check the Image Appearance and Dimensions

Open the PNG and inspect its appearance, orientation, and important details.

If your destination requires particular dimensions, check the output's width and height.

For example, a JPG measuring 1200 × 800 pixels can remain 1200 × 800 pixels after conversion if the converter does not resize or otherwise change its dimensions.

Also check the file size if there is an upload limit.

Test the PNG in Its Intended Destination

If you converted the image for an upload form or application, try using the new file there.

A valid PNG can still be rejected because of separate limits on file size, dimensions, or other requirements.

Can You Convert JPG to PNG Without Losing Quality?

Converting JPG to PNG can preserve the image's decoded pixel data, but it cannot recover detail already lost through JPEG compression.

Ordinary JPG images typically use lossy compression, which discards some information to reduce file size. PNG uses lossless compression, which preserves the pixel data supplied during encoding.

If the original JPG already looks blurry or contains visible compression artifacts, converting it to PNG will not automatically remove those imperfections.

The key difference is preservation versus restoration: a straightforward PNG export can preserve the decoded image without additional JPEG-style lossy compression, but it cannot recreate details already lost.

If a higher-quality original is available, use that instead of expecting format conversion to improve the existing JPG.

For additional technical context, seeMDN's image file type and format guide.

Does Converting JPG to PNG Make the Background Transparent?

No. JPG-to-PNG conversion does not automatically remove an image's background.

PNG supports transparent and partially transparent pixels, but an ordinary JPG does not contain a conventional alpha channel.

For example, converting a product photograph with a white background into PNG normally leaves that white background visible.

To create transparency, you must remove or edit the background separately and save the result in a transparency-supporting format, such as PNG.

Remember: PNG supports transparency; conversion alone does not create it.

Why Is My PNG File Larger Than the JPG?

A PNG converted from a photograph is often larger than the original JPG.

JPEG typically reduces photographic file sizes through lossy compression, while PNG stores image data using lossless compression.

However, PNG files are not always larger. The result depends on image content, compression settings, color representation, and other processing.

If your PNG exceeds a website's upload limit, you may need to resize or optimize it separately.

Changing the format does not guarantee a smaller file.

JPG to PNG: Common Mistakes to Avoid

These mistakes can prevent a successful conversion or create incorrect expectations.

Common mistake	Why it matters	What to do
Renaming .jpg to .png	The actual encoding does not change	Convert or export the image properly
Expecting improved sharpness	Lost JPEG detail is not restored	Use a higher-quality original if available
Expecting a transparent background	Conversion does not remove backgrounds	Remove the background separately
Ignoring output file size	PNG may exceed upload limits	Check the file size and optimize if necessary
Assuming metadata is preserved	Conversion software may alter or omit metadata	Verify important metadata after conversion

If you are unsure whether the result is a genuine PNG, inspect it using software that can identify its actual image format.

JPG vs PNG: When Should You Use Each?

The right image format depends on the task.

Use case	Generally suitable format
Photographs where smaller file sizes matter	JPG
Images requiring transparent areas	PNG
Screenshots with text or sharp edges	PNG
Forms or applications that specifically require PNG	PNG
Photographs already suitable for their intended use	JPG may be sufficient

Neither format is universally better.

If your destination requires PNG, convert the image even when JPG would otherwise be suitable.

For more guidance, readJPG vs PNG vs WebP: Which Image Format to Use.

Conclusion

To convert JPG to PNG, use an online converter, Windows Paint, or Mac Preview, then save the new image as PNG.

Before using it, check that the file is a genuine PNG and meets your destination's requirements. Conversion changes the image format, but it does not automatically restore lost detail or remove the background.