PNG to JPG Converter

Why convert PNG to JPG

PNG files are lossless, which is great for sharp graphics but wasteful for photographs and screenshots with lots of colour. Converting to JPG typically makes such files several times smaller, which matters when you are attaching them to email, uploading them to a form with a size limit, or storing thousands of them. JPG is also accepted by every website, printer and app, while a few services still refuse PNG.

The trade-off is that JPG is lossy and cannot store transparency. This tool handles both: you choose the quality, and you choose what colour replaces the transparent areas.

The transparency problem

A PNG can have a transparent background, a logo on nothing. JPG has no way to store that, so something has to fill the space. Naive converters fill it with black, which often ruins a logo. This tool fills with white by default and lets you pick any colour, so the result looks the way you expect on the page where it will be used.

If you need to keep transparency, do not convert to JPG. Keep the PNG, or convert to WebP with the Image Converter, which supports transparency and is usually smaller than PNG.

Choosing a quality setting

JPG quality is a trade-off between file size and visible artefacts. As a guide:

• 90 to 100 percent: near-original, large files. Use for photos that will be printed or edited again.
• 80 to 90 percent: the sweet spot for most uses; the difference from the original is hard to see and files are much smaller.
• 60 to 80 percent: noticeably smaller files, with slight softness on detailed areas. Fine for email and web thumbnails.
• Below 60 percent: visible blockiness, especially around text and sharp edges. Avoid for screenshots with text.

When PNG is still the better choice

Keep PNG for logos, icons, diagrams, screenshots with small text and any image that will be edited again. JPG compression creates fuzzy halos around sharp edges and text, and each new save adds more. A screenshot of a spreadsheet as JPG can look noticeably worse than the PNG, even when the file is smaller. For photographs, the choice is easy: JPG.

If size is the only problem, try reducing the dimensions first with the Image Resizer, or use the Image Compressor. Read JPG vs PNG vs WebP for a broader comparison.

What size to expect

The saving depends on what is in the picture. A photograph saved as PNG is very large because PNG stores every pixel exactly; the same photo as a JPG at 85 percent quality is often a fifth to a tenth of the size. A screenshot or diagram made of flat colours behaves the other way round: PNG compresses flat areas very well, and a JPG of the same picture can be larger and fuzzier around the text. If a conversion makes a file bigger, that is the reason, and keeping the PNG is the right decision.

A quick test is to convert one file, compare the sizes shown in the results, and zoom in on the sharpest edges. If both the size and the sharpness are acceptable, convert the rest of the batch with the same settings.

Batch conversion and other formats

You can convert up to 30 files at once, and the tool also accepts WebP, GIF, BMP and AVIF inputs, so it doubles as a general "to JPG" converter. Each file shows its size saving, and the results can be downloaded singly or as a ZIP. Photos taken sideways on a phone come out the right way up.

To turn the pictures into a single document, use JPG to PDF afterwards. Converting happens in your browser and your files are never uploaded.