JPG: the universal photo format
JPG (or JPEG) uses lossy compression that is very efficient for photographs. It opens on every device and in every app, which makes it the safe choice for sharing. It does not support transparency, and sharp edges and text can show blurry artifacts at low quality.
PNG: lossless and transparent
PNG stores every pixel exactly and supports transparency. That makes it ideal for logos, icons, screenshots and graphics with text. For photos it is a poor choice: a photo saved as PNG is often several times larger than the same photo as JPG – PNG to JPG fixes that.
WebP: smaller files for the web
Google's WebP supports lossy and lossless compression as well as transparency. At the same visual quality, WebP photos are typically 25–35% smaller than JPG, and all current browsers support it. It is the easy upgrade for websites – convert existing images with JPG to WebP.
AVIF: the smallest files
AVIF is based on the AV1 video codec and often produces files around half the size of a comparable JPG. Current browsers display it, but encoding takes longer and some older apps cannot open it yet. Use JPG to AVIF for websites where every kilobyte counts.
Quick recommendations
- Photos to share or print: JPG
- Logos, icons and screenshots: PNG
- Website images: WebP, or AVIF with a fallback
- Graphics with transparency on the web: WebP or PNG
Convert between formats
The Image Converter changes images between the common formats in bulk and runs entirely in your browser, so you can try several formats and compare the results without uploading anything.