PNG to JPG Converter
Convert PNG images to compressed JPG with adjustable quality. No uploads.
When Should You Convert PNG to JPG?
PNG files from screenshots or design exports are often several megabytes. Converting to JPG at 85–90% quality reduces the file size by 60–80% with no visible loss for photographic content. This is ideal for speeding up websites, sending images by email, uploading to social media platforms, or reducing storage use.
Convert PNG to JPG when:
- File size matters — You need a smaller image for web upload, email attachment, or storage and you don't need to edit it again.
- The image is photographic — Photos look nearly identical at 85–90% JPG quality but are dramatically smaller. The compression artefacts that JPG introduces are masked by the natural variation in photographic pixels.
- Transparency is not needed — If the PNG has transparent areas you need to keep, use our PNG to WebP Converter instead — WebP supports transparency at small file sizes. JPG cannot store transparency and replaces transparent pixels with a solid background color.
- Uploading to platforms that don't optimise PNG — Many social media platforms and CMS platforms re-compress images on upload. Starting with an optimised JPG gives you more control over final quality.
Choosing the Right Quality Setting
| Quality | File size | Visual quality | Best for |
|---|---|---|---|
| 95–100% | Large | Near-lossless | Professional printing, archiving |
| 85–94% | Medium | Excellent | Web photos, product images, social media |
| 70–84% | Small | Good | Blog images, thumbnails, previews |
| Below 70% | Very small | Noticeable artefacts | Low-bandwidth situations only |
The quality slider controls how aggressively JPG compression discards information. At 90%, you save 70–80% of file size and the visual difference is imperceptible to most viewers. Below 75%, blocky compression artefacts become visible in flat-color areas and sharp edges — acceptable for small thumbnails but not for featured images.
Handling Transparent PNGs: The Background Color
JPG does not support transparent pixels — all pixels must be fully opaque. When converting a PNG that has transparent areas, those transparent pixels need to be filled with a solid color. The background color picker in this tool controls the fill:
- White (#ffffff) — the default. Correct for images that will be displayed on white backgrounds (most websites).
- Custom color — use the color picker to match the exact background color of the page where the image will appear. This makes the transparent-to-JPG conversion visually seamless.
- Black (#000000) — useful for dark-background sites or dark-mode designs.
If you later need the transparency back, you cannot recover it from a JPG. Always keep the original PNG file or convert to WebP instead.
How Much File Size Will You Save?
The savings depend heavily on image content and quality setting. As a rough guide at 90% quality:
- A 2 MB PNG photograph → approximately 400–600 KB JPG (70–80% smaller)
- A 500 KB PNG screenshot → approximately 80–150 KB JPG (70–85% smaller)
- A 200 KB PNG graphic with flat colors → approximately 50–100 KB JPG (50–75% smaller)
The side-by-side size comparison in the result card shows you the exact savings for your specific image.