Every screenshot, export and download presents the same small dilemma: JPG or PNG? The two formats solve different problems, and picking the wrong one means either blurry details or bloated files. Here's the practical difference.
What JPG is great at
JPG (or JPEG) uses lossy compression engineered for photographs. It throws away detail your eye barely notices and rewards you with small files — a photo saved as JPG might be 5-10× smaller than the same image as PNG. For anything with gradients, skies, skin tones and natural textures, JPG is usually the right call.
What PNG is great at
PNG is lossless and supports transparency. That makes it the winner for: screenshots of text and interfaces, logos and icons, images that need a transparent background, and anything that will be edited and re-saved repeatedly (no quality loss each round). Text in PNG stays pixel-crisp; text in JPG develops fuzzy halos.
The quick decision rule
- Photo of the real world → JPG.
- Screenshot, diagram, chart or anything with text → PNG.
- Needs a transparent background → PNG (JPG can't do transparency at all).
- Publishing on the modern web → consider WebP as well — it often beats both.
Converting between them
Real work constantly needs both: a screenshot that must go into a photo collage, a product photo that needs a transparent background removed first. Converting is a one-drop job — the JPG to PNG and PNG to JPG tools handle it in your browser, no upload to a server required.
One caution: converting JPG → PNG doesn't restore lost quality — it just preserves what's left, in a bigger file. Go the other way (PNG → JPG) when size matters, and keep the PNG master when quality does.