PNG to JPG Converter - Shrink PNG Images Free

PNG stores every pixel exactly, which is wonderful for logos and screenshots and wasteful for photographs. A holiday snapshot saved as PNG can easily be ten times larger than it needs to be. Converting it to JPG throws away detail the eye cannot see and gives most of that weight back — but the trade is real, and this page is about making it knowingly.

How to convert PNG to JPG

1. 1 Drop your .png file onto the upload area or click it to browse.
2. 2 Set the quality and pick a background colour for any transparent areas.
3. 3 Convert, compare the new file size in the preview, then download.

Transparency becomes a solid colour

JPEG has no alpha channel, so every transparent pixel must be given a colour. Most converters silently pick white — and a white logo then vanishes into a white rectangle. Here the colour is yours to choose before you convert: white for documents, black for dark presentations, or any custom shade that matches where the image is going. If keeping the transparency matters more than the file size, convert to WebP instead.

How much smaller, and at what cost

For an ordinary photograph, expect the JPG to be 70–90% smaller at quality 90 — a 5 MB PNG often lands around 500 KB with no visible difference. Lowering the slider shrinks it further, but JPEG compression works by simplifying blocks of pixels, and below roughly 70 that simplification starts to show as soft haloes around edges and blotches in smooth skies. Quality 85–90 is the sweet spot for almost everything.

When you should keep the PNG

Screenshots, diagrams, logos and anything containing text are the wrong candidates. JPEG was tuned for continuous tones like skin and landscapes; on sharp black-on-white edges it produces visible ringing, and small text turns mushy. These images are also usually already small as PNG, so there is little to gain. Photographs benefit; graphics rarely do.