Format comparison
PNG vs JPG – which format should you use and when?
PNG and JPG are the two most common image formats, but they solve different problems. Choosing the wrong one means either bloated file sizes or lost transparency. Here is how to pick the right one every time.
Key differences at a glance
| Feature | PNG | JPG |
|---|---|---|
| Transparency | ✓ Supported | ✗ Not supported |
| Compression | Lossless | Lossy |
| File size | Larger (for photos) | Smaller (for photos) |
| Quality loss on save | None | Yes (accumulates) |
| Best for | Logos, UI, cutouts | Photos, thumbnails |
| Text/sharp edges | Crisp | Can blur/artifact |
| Browser support | Universal | Universal |
When to use PNG
PNG is the right choice when image integrity matters more than file size:
- Transparent backgrounds. Logos, product cutouts, stickers, and any asset that needs to sit cleanly on different backgrounds. JPG cannot store transparency — it will fill the background with white.
- Screenshots and UI. PNG keeps text, icons, and interface elements pixel-perfect. JPG compression introduces blocky artifacts around sharp edges.
- Master/archive files. If you will re-edit the image later, PNG avoids the quality loss that accumulates every time a JPG is re-saved.
- E-commerce product images. Marketplaces like Amazon and Shopify expect product images with clean, transparent or white backgrounds — PNG delivers that consistently.
When to use JPG
JPG wins when you are dealing with natural photographs and file size is a priority:
- Photography. Photos have millions of subtly different colors. JPG compression is optimized for this and produces much smaller files than PNG without visible quality loss.
- Web page images. Blog post images, hero banners, and thumbnails are typically photos. JPG keeps page load times fast.
- Social sharing. Platforms like Instagram and Twitter re-compress images anyway. A well-optimized JPG is the practical starting point.
The recommended workflow for creators and e-commerce
The most practical workflow is: start with JPG, finish with PNG.
Most source photos come as JPGs from a camera or phone. That is fine — they are great source material. But if the end goal is a transparent cutout (for a product listing, ad creative, or design asset), convert to PNG after removing the background. The PNG then becomes your production-ready file.
This gives you the small file size benefit of JPG for the original photo, and the transparency and lossless quality of PNG for the final asset.
Try it with PNGmaker
Use the tool flow directly from this guide. The idea is simple: understand the workflow, then get to the result fast.