How to use the PNG to JPG Converter
- Drop your PNG files onto the box, click to choose them, or paste a screenshot.
- Set the JPG quality. 85–90% keeps photos looking the same while saving the most space.
- If your PNGs have transparent areas, choose the color that should fill them.
- Download the JPG files one at a time or all together as a ZIP.
Features
- Converts PNG to JPG in a batch
- Quality slider from 40% to 100%
- Custom fill color for transparent pixels
- Shows how much smaller each file got
- Keeps the original dimensions
- Nothing is uploaded
When PNG to JPG is the right move
PNG is perfect for graphics, but it is a heavy way to store photographs. A photo saved as PNG keeps every grain of sensor noise, so it can easily weigh several megabytes. Converting it to JPG typically cuts the size dramatically with no difference you can see. That helps when an email bounces because of attachment limits, a job portal rejects files over a certain size, or a website loads slowly. JPG is also the most widely accepted image format, from photo printing kiosks to old office software.
Handling transparency
JPG has no alpha channel. Every pixel must have a solid color, so transparent and partly transparent areas of your PNG are blended onto a background color before encoding. White suits documents and most web pages. If the image will sit on a colored background, pick that exact color so soft edges such as shadows and anti-aliased text blend in smoothly. A fully black background is rarely what you want, which is why the default is white.
Choosing the JPG quality
| Quality | Result | Good for |
|---|---|---|
| 95–100% | Largest files, nearly perfect | Archiving, printing, further editing |
| 85–90% | Visually identical to the PNG for photos | Most uses; the default |
| 70–80% | Small files, tiny artifacts on close inspection | Web pages, email, chat |
| Below 60% | Visible blockiness and color smearing | Thumbnails or strict size limits |
The quality number is not a percentage of anything measurable. It controls how aggressively the encoder rounds off fine detail, and different programs map the number differently, so 80% in one app is not exactly 80% in another.
When to keep the PNG instead
JPG compression works in small blocks of pixels and handles gradual changes well, but it struggles with hard edges. Screenshots full of text, line art, charts, QR codes and pixel art develop faint halos and smudges around every edge when saved as JPG, and they may even end up larger than the PNG. For those images, keep PNG, or try WebP in the Image Converter, which handles both photos and graphics well.
Worked example
Say you exported a 1920 × 1080 photo from an editor as PNG and it is too big for a form that accepts files under 1 MB. Convert it here at 90%; if the result is still over the limit, step down to 80%. If it is still too large, reduce the dimensions with the Image Resizer, since a 1280 × 720 version holds less than half as many pixels. For an exact target size, the Image Compressor shows the saving as you adjust.
Privacy
The conversion uses your browser's own JPEG encoder on your device. Your images are never uploaded, and the JPG files are written fresh, without any text metadata your PNG may have carried.
Frequently asked questions
Why does my converted JPG have a white background?
Your PNG had transparent areas, and JPG cannot store transparency. They are filled with the background color you choose, which is white by default.
What quality should I use for PNG to JPG?
Start at 90%. Photos look identical at that level. Lower it to 75–80% if you need smaller files, and check the result before going lower.
Why is my JPG bigger than the PNG?
This can happen with simple graphics such as screenshots, logos or diagrams, which PNG compresses very efficiently. Keep those images as PNG, or try WebP.
Can I convert many PNG files at once?
Yes. Add as many as you like; they are converted one after another, and you can download them together as a ZIP file.