What happens to transparency when converting PNG to JPG?

JPG does not support transparency. All transparent areas in your PNG will be filled with a white background. If you need to preserve transparency, use WebP instead, which supports both transparency and better compression.

How much smaller will my JPG file be compared to PNG?

For photographs, JPG files are typically 5-10 times smaller than PNG at quality 85. For graphics with solid colors and sharp edges, the difference is smaller. The exact savings depend on image content and the quality setting you choose.

Does PNG to JPG conversion lose quality?

Yes. JPG uses lossy compression, so some quality is lost during encoding. At quality 85-90, the loss is nearly imperceptible for photographs. For images with text, sharp lines, or solid color areas, JPG artifacts may be more noticeable.

When should I use JPG instead of PNG?

Use JPG for photographs, real-world images, and any image where file size matters more than pixel-perfect reproduction. Use PNG when you need transparency, lossless quality, or are working with screenshots, text overlays, or graphics with sharp edges.

PNG to JPG Converter - Free Online Tool

How to Convert PNG to JPG

PNG files are great for quality but often too large for web use or email. Converting to JPG dramatically reduces file size, making images faster to load, easier to share, and more compatible with services that have upload size limits.

Upload your PNG file by dragging it onto the upload area or clicking to browse
Adjust the quality slider -- 85 is recommended for most photographs
Click "Convert to JPG & Download" to save the compressed image

All processing happens in your browser. Your image is never sent to any server.

What Happens to Transparent Areas?

JPG does not support transparency. Any transparent regions in your PNG will be filled with a solid white background during conversion. If your PNG has a transparent background and you need to keep it, consider converting to WebP instead, which supports both transparency and smaller file sizes.

Choosing the Right Quality Setting

Quality 90-100: Near-lossless. Best for images you plan to edit further or that need high fidelity. File size savings compared to PNG are still significant.

Quality 80-90: Excellent quality for most purposes. Compression artifacts are not visible at normal viewing distances. This is the sweet spot for web images.

Quality 60-80: Good for thumbnails, previews, and images where small file size is more important than perfect quality. Artifacts become visible on close inspection.

Below 60: Noticeable quality loss. Only recommended when extreme file size reduction is needed.

PNG vs JPG: When to Use Each

Use JPG for: photographs, real-world images, gradients, and any image where some quality loss is acceptable in exchange for much smaller file sizes.

Keep PNG for: screenshots, logos, icons, images with text, graphics with sharp edges, and any image that needs transparency or lossless quality.

Frequently Asked Questions

How much smaller will my file be?

For photographs saved as PNG, the JPG version at quality 85 is typically 5-10 times smaller. A 3MB PNG photo might become 300-600KB as a JPG. For screenshots and graphics with flat colors, the ratio is smaller but still significant.

Can I convert back to PNG later?

You can convert JPG back to PNG using the JPG to PNG converter, but this will not recover quality lost during JPG compression. Keep your original PNG file if you might need the full quality later.

Is JPG or WebP better for the web?

WebP produces smaller files than JPG at the same quality and supports transparency. If your target audience uses modern browsers (97%+ do), WebP is the better choice for web images.