6 min read
JPG vs PNG vs WebP: Which Format Should You Choose?
Choosing the wrong format is the most common reason for oversized or ugly images. A screenshot saved as JPEG gets fuzzy text; a photo saved as PNG can be five times larger than it needs to be.
JPEG (JPG)
Designed for photographs. Lossy, very widely supported, no transparency.
- Best for: photos, scanned pictures, images with smooth gradients.
- Avoid for: text, logos, screenshots, anything needing a transparent background.
PNG
Lossless and supports full transparency. Files are large for photographs but crisp for graphics.
- Best for: screenshots, logos, icons, diagrams, images you will edit again.
- Avoid for: large photographs on websites.
WebP
A modern format supporting both lossy and lossless compression plus transparency. At similar visual quality, lossy WebP is typically noticeably smaller than JPEG. All current major browsers display it, but some older desktop software, printers and upload forms still reject it.
- Best for: website images where size matters.
- Avoid for: files you need to send to people using older software or official forms that list only JPG/PNG.
Quick decision guide
- Does it need a transparent background? Use PNG, or WebP for the web.
- Is it a photograph? Use JPEG for compatibility, WebP for the smallest website files.
- Does it contain text or sharp lines? Use PNG.
- Does a form say 'JPG only'? Use JPEG, regardless of the above.
Converting between formats
Converting PNG to JPEG replaces transparent areas with a solid colour (white in ToolsNest). Converting JPEG to PNG does not restore lost quality — it just stores the existing pixels losslessly, often in a bigger file. Use the Image Format Converter and compare the sizes it reports.
In short
JPEG for photos, PNG for graphics and transparency, WebP for the web when you control where it will be displayed.