How to convert an image
- Choose one or more images.
- Pick the output format: JPG, PNG or WEBP.
- Click “Convert images”.
- Download your converted files.
About image formats
JPG is the most widely supported image format. It uses lossy compression, which keeps photos small, and it does not support transparency.
PNG is lossless, so it never loses detail, and it supports transparent backgrounds. Photos saved as PNG are usually much larger than JPG.
WEBP is a modern format made for the web. It creates smaller files than JPG at similar quality and supports transparency, but some older apps cannot open it.
Which format should you choose?
- JPG for photos you want to share anywhere.
- PNG for logos, screenshots and images with text.
- WEBP for images on your own website.
JPG vs PNG vs WEBP
| JPG | PNG | WEBP | |
|---|---|---|---|
| Compression | Lossy | Lossless | Lossy or lossless |
| Transparency | No | Yes | Yes |
| File size | Small | Large for photos | Smallest |
| Best for | Photos, sharing, websites | Logos, screenshots, images with text | Websites and fast loading |
Frequently asked questions
Which format makes the smallest files?
Usually WEBP, then JPG. PNG is the largest for photos.
What happens to transparent backgrounds?
PNG and WEBP keep them. JPG doesn’t support transparency, so transparent areas become white.
Can I convert many images at once?
Yes. Choose as many images as you want.
Is Vertozi really free?
Yes. There is no subscription, no premium plan and no sign-up. The site is funded by ads.
Are my files uploaded?
No. This tool runs in your browser, so your files never leave your device.