Different image formats serve different purposes. JPG is great for photos because it keeps file sizes small. PNG is essential for graphics that need transparency. WebP combines the best of both - smaller files with transparency support. Our converter lets you switch between these formats instantly, all in your browser.
JPG: Best for Photographs
JPG uses lossy compression, which means it throws away some image data to make files smaller. The human eye barely notices the difference at normal quality settings. Use JPG for photos where file size matters more than pixel-perfect accuracy. The downside: no transparency support and visible artifacts at high compression.
PNG: Best for Graphics and Text
PNG uses lossless compression, preserving every pixel exactly. It supports transparency (alpha channels), making it the go-to format for logos, icons, screenshots, and any image with text overlays. The trade-off is larger file sizes compared to JPG for photographic content.
WebP: The Modern All-Rounder
WebP supports both lossy and lossless compression, plus transparency. Files are typically 25-35% smaller than equivalent-quality JPGs and significantly smaller than PNGs. In 2026, over 97% of web browsers support WebP. If you're building a website, WebP should be your default choice.
Quick Rules for Format Choice
- Photos go to JPG (or WebP for smaller files)
- Graphics with text or logos go to PNG (or WebP)
- For the best quality, choose PNG
- For web efficiency, choose WebP
What Conversion Can and Can't Do
Converting a JPG to PNG won't restore quality that was lost when the JPG was created. Converting a PNG with transparency to JPG will fill transparent areas with white (JPG doesn't support transparency). All conversion happens locally - your images never leave your device.