Compress JPG into tiny AVIF images
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Max file size: 20MB
AVIF is the most efficient image format browsers support today — often around half the size of a comparable JPG. For a site where images dominate page weight, switching hero images and product photos to AVIF can noticeably improve load time and Largest Contentful Paint. pdfty's JPG to AVIF converter makes that switch quick.
Encoding runs on our server with Pillow and libheif at quality 85, and EXIF rotation is applied. AVIF is supported by current Chrome, Firefox, Edge and Safari (16.4+), but many desktop apps and older Windows installs cannot open it without an extra codec, and some CMSs still reject it. Serve AVIF with a JPG fallback and keep your originals.
Upload several JPGs at once and get a ZIP with one AVIF per file. Free: no daily limit, up to 20 MB per file, no watermark, no sign-up. Files are deleted within 1 hour. Resize photos to your layout's real display width first — fewer pixels plus AVIF gives the biggest savings.
Drag and drop one or several .jpg files. Up to 20 MB each free.
Each image is encoded as AVIF at quality 85, upright from EXIF.
AVIF encoding is slower than JPG — a few seconds per large photo.
One file gives one .avif; several files arrive as a ZIP.
Use a <picture> element with the JPG as fallback for older browsers.