How to Convert PNG to JPG
Step-by-step instructions for converting PNG images to JPG on desktop and mobile, plus checks for quality, transparency, and file size.
Before you start
PNG and JPG are both common image file formats, but they handle image data differently. PNG is often used for graphics that need transparency or sharp text, while JPG is usually smaller for photos because it uses lossy compression. Converting may reduce file size, but it can also remove transparency and introduce compression artifacts around high-contrast edges. Check whether the image contains transparent areas before converting. The process can run locally in a built-in image editor or through a conversion service; choose a method that matches the file's location and your comfort with uploading the image.
Step-by-step instructions
Use one of the following methods depending on your device. Keep a copy of the original PNG until you have confirmed the result.
Convert with a desktop image editor
- Open the PNG in an image editor that supports JPG export.
- Select Export As, Save As, or the equivalent command in the file menu.
- Choose JPG or JPEG as the file format.
- If the editor exposes quality settings, select the level you need; a lower quality value usually creates a smaller file but can increase visible compression artifacts.
- If the image has transparency, choose a background color such as white or black when prompted, because JPG does not support transparent pixels.
- Save the file with a new name to avoid overwriting the original PNG.
Convert with a smartphone or tablet
On many phones, the built-in Photos or Files app can export an image in another format through Share, Edit, or Save As options. The exact menu names vary by operating system and app version. If the built-in tools do not offer a JPG option, use a third-party image converter app from the device's app store. When using a third-party app, review the quality setting and where the converted file will be saved before confirming.
Convert with an online tool
Online converters work in a browser and do not require installing software. Open the converter, select the PNG file, choose JPG as the output format, and start the conversion. Before uploading, consider the privacy implications of sending the image to a third-party service. Understand the service's file handling and deletion policy rather than assuming uploads are private. After conversion, download the JPG and verify it opens correctly.
Check the output
Open the converted JPG and compare it with the original PNG at normal viewing size and at 100 percent zoom. Confirm that important colors, edges, and text remain clear. If the original had transparent areas, check that the chosen background color appears as expected. Review the file size to confirm it matches your goal, but do not treat a smaller file as automatic proof of acceptable quality. Remember that JPG conversion is lossy, so some fine detail may be reduced. If the result shows visible artifacts or lost detail, convert again with a higher quality setting or retain the PNG.
Common problems and next steps
Transparency becomes black or white
This happens because JPG does not support transparency. If the converter does not offer a background color option, add a background layer in an image editor before exporting. Choose a color that suits where the image will be used.
The JPG is larger than expected
A JPG can be larger than the source PNG if the image contains sharp graphics, screenshots, or high-frequency detail that does not compress well in JPG format. In that case, PNG may be the more efficient file format. If a smaller JPG is required, reduce the quality setting or the pixel dimensions, but check the visible result before replacing the original.
Text or edges look blurry
Lossy compression can soften text and sharp edges, especially at low quality settings. Export again at a higher quality setting or keep the image as PNG when sharpness is more important than file size.
The file did not convert
If the JPG does not open after conversion, the file may be incomplete, renamed, or saved in an unexpected location. Try the export again with a new filename. If you used an online service, download the result again and confirm the file extension is .jpg or .jpeg.