JPG vs PNG: which format should you use?
JPG and PNG are the two most common image formats on the web, and almost every phone, computer and website can open both. They look the same at first glance, but they are built for different jobs. Choosing the wrong one can make a photo five times bigger than it needs to be, or turn a sharp logo blurry.
Here is the short answer, followed by everything you need to decide for yourself.
The short answer
- Use JPG for photos: people, landscapes, food, products shot with a camera or phone.
- Use PNG for graphics: logos, icons, screenshots, diagrams, text and anything that needs a transparent background.
If you remember only one rule, make it this one: photos → JPG, graphics → PNG.
What is the difference?
JPG: small files, made for photos
JPG (also written JPEG) uses lossy compression. When you save a JPG, it throws away small details the eye barely notices, such as tiny colour differences in a blue sky. That is why JPG files are so small: a 12-megapixel phone photo is usually 2–5 MB as a JPG, but can easily be 15–25 MB as a PNG.
The downside is that the details are gone for good. Every time a JPG is edited and saved again, it loses a little more. On sharp edges, such as text or lines, JPG compression can leave faint blotches around the edges, called artefacts.
PNG: perfect quality and transparency
PNG uses lossless compression. Every pixel is kept exactly as it was, so text stays crisp and flat colours stay clean, no matter how many times you save the file.
PNG can also store transparency. A logo saved as PNG can sit on any background colour without a white box around it. JPG cannot do this at all.
The downside is size. For photos, PNG files are much larger than JPG, without looking any better to the eye.
Side-by-side comparison
- Compression: JPG is lossy (smaller, loses detail) · PNG is lossless (larger, keeps every pixel)
- Best for: JPG for photos · PNG for logos, screenshots, text and illustrations
- Transparency: JPG no · PNG yes
- File size for photos: JPG small · PNG large
- Sharp text and lines: JPG can look blurry · PNG stays sharp
- Re-saving: JPG loses a bit of quality each time · PNG never does
When to use JPG
- Photos you want to share by email, WhatsApp or social media
- Product photos and banners on a website, where fast loading matters
- Any image where a smaller file matters more than perfect pixels
Tip: if your JPG photos are still too big, you can make them smaller without converting at all. Our image compressor reduces file size while keeping photos looking the same.
When to use PNG
- Logos and icons, especially with a transparent background
- Screenshots of apps, websites or documents
- Images with text, charts, diagrams and flat colours
- Images you will edit again and again
Converting between JPG and PNG
JPG to PNG
Converting a JPG to PNG is useful when you need to edit an image several times without losing more quality, or when a website or app only accepts PNG. You can do it in seconds with our free JPG to PNG converter.
Two things are good to know:
- Converting does not bring back detail the JPG already lost. The PNG will look exactly like the JPG, just stored without further loss.
- Converting does not make the background transparent. A white background stays white; you would need an editing app to remove it.
The PNG file will also be bigger than the JPG. That is normal and expected.
PNG to JPG
Converting PNG to JPG is the quickest way to shrink large screenshots or photos that were saved as PNG by mistake. Use our PNG to JPG converter and choose the quality you need.
Keep in mind that JPG has no transparency. Any transparent areas become a solid white background.
What about WebP?
WebP is a newer format created by Google. It can do both jobs: lossy like JPG and lossless with transparency like PNG, usually with smaller files. Most browsers support it, but some older apps and programs still don't open WebP files. If you downloaded a WebP image and can't use it, convert it with our WebP to JPG or WebP to PNG tools.
Quick decision guide
- Is it a photo taken with a camera or phone? Use JPG.
- Does it need a transparent background? Use PNG.
- Does it contain text, a logo or sharp lines? Use PNG.
- Is the file too big to send or upload? Use JPG, or compress it.
Frequently asked questions
Is PNG better quality than JPG?
PNG keeps every pixel, so it never loses quality. For photos, though, a good-quality JPG looks the same to the eye at a fraction of the size. PNG is clearly better only for graphics, text and transparency.
Why is my PNG so much bigger than my JPG?
Because PNG stores every detail without throwing anything away. That is ideal for simple graphics, but photos contain millions of slightly different colours, which makes PNG files very large.
Does converting a JPG to PNG improve quality?
No. It stops further quality loss, but it cannot restore detail that was already removed when the JPG was first saved.
Which format is better for websites?
Use JPG (or WebP) for photos so pages load quickly, and PNG for logos, icons and graphics with text or transparency.
Are my images uploaded when I convert them here?
No. All MagicPicTool converters work inside your browser, so your images never leave your device.
Try it now – free, no sign-up, and your files stay on your device.
Open JPG to PNG