PNG vs JPG: What’s the Difference and When to Use Each

PNG and JPG are the two most common image formats on the web, and people mix them up constantly. They’re built for different jobs. Here’s the difference in plain terms and a simple rule for choosing the right one every time.

The core difference

• JPG uses lossy compression — it shrinks files by discarding data you mostly can’t see. Small files, great for photos.
• PNG uses lossless compression — it keeps every pixel exactly and supports transparency. Larger files, great for graphics.

That single distinction drives almost every decision between them.

When to use JPG

Choose JPG when file size and broad compatibility matter most:

• Photographs — JPG handles the smooth gradients of real-world photos beautifully at a fraction of PNG’s size.
• Sharing and emailing — smaller files send and load faster.
• Website photos — faster page loads.

The trade-off is that JPG isn’t ideal for sharp edges, text, or images you’ll re-edit repeatedly, since each save can degrade quality slightly.

Need a JPG? Convert PNG to JPG here →

When to use PNG

Choose PNG when quality and transparency matter:

• Screenshots — crisp text stays crisp.
• Logos and graphics — sharp edges and flat colors stay clean.
• Transparency — PNG supports transparent backgrounds; JPG can’t.
• Images you’ll edit repeatedly — lossless means no quality loss with each save.

The trade-off is file size: PNG files, especially of photographs, can be several times larger than the JPG equivalent.

Need a PNG? Convert JPG to PNG here →

The simple rule

Photograph? Use JPG. Graphic, screenshot, text, or transparency? Use PNG.

That covers the vast majority of real-world cases.

Common reasons to convert between them

• PNG → JPG: to shrink a large file for emailing, uploading, or faster web loading. Do it here.
• JPG → PNG: to get a lossless copy, or when a tool or platform specifically requires PNG. Do it here.

For both, your file is uploaded securely from your browser, the conversion runs on our servers in seconds, and there’s no account needed.

A privacy note

Converting through SnapConvrt strips EXIF and GPS metadata from the downloaded file automatically. Originals are deleted automatically when your session ends — within about 30 minutes — or instantly with “Delete now”; converted files are never stored; and there’s no sign-up.

Frequently asked questions

Does converting PNG to JPG lose quality? JPG is lossy, so there’s some compression — but at high-quality settings it’s not visible for normal use, and the file gets much smaller.

Does converting JPG to PNG improve quality? No — it can’t add back detail already lost in the JPG. But it gives you a lossless copy that won’t degrade further with editing.

Which is better for printing? For photos, a high-quality JPG is fine. For graphics with text or sharp lines, PNG is better.

Need to switch formats? Convert PNG to JPG or Convert JPG to PNG — free, private, no account.