PNG ↔ JPG Converter

Easily convert images between PNG and JPG formats.
100% Client-Side & Privacy Focused.

Click to Upload or Drag Images

Supports multiple files

Common Use Cases

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Photographs

Convert gigantic PNG screenshots or raw photos to efficient JPGs for sharing.

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Web Assets

Turn transparent app icons into solid JPGs with white backgrounds for app stores.

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Email

Reduce attachment size by converting lossless PNG scans to standard JPG documents.

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Documents

Convert scanned forms to standard JPG format required by many government portals.

JPG vs PNG: Which should I choose?

Choose JPG (JPEG) if:

✅ You are saving real-life photographs.
✅ You need smaller file sizes.
✅ Transparency is not needed.
✅ Smooth gradients are important.

Choose PNG if:

✅ You need transparency (e.g., logos).
✅ You have text or screenshots with sharp lines.
✅ You need 100% quality (lossless).
✅ File size is less critical.

Converting Images in Code

Automating image conversion? Here is how to do it in popular programming languages.

PythonPillow

from PIL import Image

# Convert PNG to JPG
img = Image.open('image.png')
rgb_im = img.convert('RGB') # Remove alpha
rgb_im.save('image.jpg', quality=95)

PHPGD Library

$image = imagecreatefrompng('image.png');
$bg = imagecreatetruecolor(imagesx($image), imagesy($image));
imagefill($bg, 0, 0, imagecolorallocate($bg, 255, 255, 255));
imagecopy($bg, $image, 0, 0, 0, 0, imagesx($image), imagesy($image));

imagejpeg($bg, 'image.jpg', 90); // 90% quality

Node.jssharp

const sharp = require('sharp');

sharp('image.png')
  .flatten({ background: '#ffffff' }) // Replace alpha
  .jpeg({ quality: 90 })
  .toFile('image.jpg');

Goimage/jpeg

file, _ := os.Open("image.png")
img, _ := png.Decode(file)

out, _ := os.Create("image.jpg")
// Quality ranges from 1 to 100
jpeg.Encode(out, img, &jpeg.Options{Quality: 90})

Frequently Asked Questions

Which format is better for SEO?

Smaller images load faster, which is better for SEO. JPG is usually better for photos. PNG is better for simple graphics. WebP is best overall.

Can I make a JPG transparent?

No. The JPEG standard does not support transparency. If you need a transparent background, you must use PNG, WebP, or GIF.

Does this tool reduce file size?

Yes, especially when converting from PNG to JPG, you will often see significant size variance. When converting JPG to PNG, the file size may actually increase since PNG is lossless.

Is there a file size limit?

Since the conversion happens in your browser, the limit depends on your device's memory (RAM). Typically, images up to 50MB work fine.

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