JPG/PNG, WebP and AVIF Converter
Convert between JPG, PNG, WebP and AVIF in your browser. Choose an output format and quality settings with no server uploads.
Free to use · No account · Files processed on your device
Loading converter…
How to use JPG/PNG, WebP and AVIF Converter
- Select a JPG, PNG, WebP, or AVIF image.
- Choose the output format and quality. JPG also lets you choose a transparency background.
- Click Convert and download the new files. AVIF encoding may take longer for large images.
When to use this tool
WebP and AVIF offer modern image compression. AVIF encoding runs locally with WebAssembly; use JPG or PNG for broad compatibility.
Need help choosing settings? Read WebP vs AVIF: choosing a format for web images.
Frequently asked questions
Does AVIF conversion upload my image?
No. AVIF is encoded locally using WebAssembly. Your browser downloads the encoder code, but your selected image is processed on your device.
Is a new format guaranteed to be smaller?
No. The result depends on content, quality, and the original compression. Compare the actual file sizes and inspect the image, particularly text and fine edges, before replacing an original.
Are my files uploaded or stored?
The conversion happens in your browser. Keep the original files and save your downloads before closing the page. Learn how local processing protects your images.