PNG is a lossless format: it keeps every pixel exactly and supports transparency, which makes it ideal for logos, icons and screenshots. JPG uses lossy compression designed for photographs, producing much smaller files with little visible difference. Converting a large PNG photo to JPG can cut its size by 70–90%.
PNG vs JPG at a glance
| PNG | JPG / JPEG | |
|---|---|---|
| Compression | Lossless | Lossy (adjustable quality) |
| Transparency | Yes | No |
| Best for | Logos, text, screenshots, UI | Photos, complex images |
| Typical file size | Larger | Smaller |
How to convert PNG to JPG online
- Open the free PNG to JPG converter.
- Select one or more PNG images or drag them onto the page.
- Choose the JPG quality. 80–90% is a good balance between size and quality.
- If your PNG has a transparent background, pick the background colour that should replace it (white is the usual choice).
- Convert and download your JPG files individually or together.
What happens to transparency?
JPG cannot store transparent pixels, so transparent areas are filled with a solid colour during conversion. If you need to keep transparency but still want smaller files, convert to WebP instead — it supports transparency and is widely supported by modern browsers.
When you should not convert to JPG
- Logos and icons with sharp edges — JPG can create blurry artefacts around text and lines.
- Images you will edit repeatedly — each JPG save loses a little quality.
- Images that need a transparent background.
Related conversions
Need the opposite? Use JPG to PNG. To make files smaller without changing format, try the Image Compressor.
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