Convert images between PNG, JPG, WebP, and AVIF. Adjust quality, see file size difference.

Format comparison

  • PNG — lossless, transparency support, large file size
  • JPEG — lossy, smaller, no transparency, photo-friendly
  • WebP — modern, ~30% smaller than JPEG/PNG, transparency support
  • AVIF — newest, even smaller than WebP, slow encoding

FAQ

Browser support?

PNG/JPG: universal. WebP: all modern. AVIF: 2022+ browsers.

Free?

Yes, all in browser.

Lossless?

PNG yes; JPG/WebP/AVIF lossy depending on quality.

Server upload?

No.