JPG to AVIF Converter
Convert JPG photos to AVIF and cut page weight further than WebP can. Batch up to 15 files locally, ideal for hero images and photo galleries.
Drag & drop images here
or click to select up to 15 JPG, PNG, WebP, AVIF, GIF, BMP, or ICO files (max 5 MB each)
About JPG to AVIF Converter
Photographs are where AVIF pulls furthest ahead. On a typical photo it delivers the same perceived quality as JPG at roughly half the bytes, and still beats WebP by a comfortable margin. For a hero image, a full-bleed banner or a gallery grid — the things that dominate your Largest Contentful Paint — that is the single largest performance win available from image work alone.
Add up to 15 JPG or JPEG files (5MB each) and click Convert. Encoding is CPU-intensive and runs on your machine, so a large batch takes real time; leave the tab open while it works. Grab the results one by one or as a ZIP.
Two practical notes. First, this is a second lossy pass over an already lossy source, so start from the highest-quality JPG you have rather than one that has been through several rounds of re-saving. Second, ship AVIF with a fallback — a picture element listing AVIF first, then WebP, then the original JPG — so older browsers and embedded webviews still get an image. Keep your JPG originals; AVIF is a delivery format, not an archive format.
Need another format? Open the full Image Converter, or try the Image Resizer and Image to Base64 tools.
Frequently Asked Questions
How much smaller is AVIF than JPG?
AVIF often produces files around 40–50% smaller than an equivalent-quality JPEG, making it one of the most efficient formats for photos on the web today.
Should I use AVIF or WebP instead of JPG?
AVIF usually compresses smaller than WebP at the same visual quality, but WebP has slightly broader legacy support. For most modern sites, AVIF is the better default with WebP or JPG as a fallback.
Why isn't my AVIF file dramatically smaller?
This tool converts at maximum quality to protect detail. For an even smaller file with a controlled quality/size tradeoff, use the Image Resizer & Compressor after converting.
Are my photos uploaded to a server?
No. Conversion runs entirely in your browser.