How to convert JPG to AVIF
imglogotool.com converts JPG to AVIF using the libavif WebAssembly codec. AVIF achieves up to 50% smaller files than JPG at equivalent visual quality — the best compression for photographs available today.
Open the Image Converter and drop your JPG files.
Select AVIF format. Quality 65-75% matches JPG quality while being dramatically smaller. Encoding takes 3-10 seconds.
Save your AVIF files. Serve with `<picture>` element and JPG fallback.
JPG vs AVIF — real-world comparison
| Metric | JPG | AVIF |
|---|---|---|
| Typical photo size | 200 KB | 100 KB (50% smaller) |
| Quality at same size | Baseline | Visibly better (fewer artifacts) |
| Transparency | No | Yes |
| HDR support | No | Yes (10/12-bit) |
| Encoding speed | Fast | Slow (AV1 codec) |
| Browser support | 100% | 93% |
AVIF for photography — why it matters
AVIF excels at photographs because the AV1 codec was designed for complex visual content. It handles gradients, skin tones, and fine detail significantly better than JPG, producing fewer blocking artifacts and banding at low bitrates.
For a photography portfolio with 50 images at 200 KB each (10 MB total), AVIF reduces this to ~5 MB — cutting page load time in half.
Related conversions
JPG to WebP — faster encoding, broader support (97%).
PNG to AVIF — convert lossless PNG to AVIF.
JPG to PNG — lossless for editing.
Frequently asked questions
How much smaller is AVIF than JPG?
AVIF is approximately 50% smaller than JPG at equivalent visual quality. For a 200 KB JPG photo, the AVIF version is typically 90-110 KB.
Is AVIF better than WebP for photos?
Yes. AVIF is 20% smaller than WebP for photos and handles gradients/skin tones better. However, WebP has broader browser support (97% vs 93%) and encodes much faster.
Why does AVIF encoding take so long?
AVIF uses the AV1 codec with complex algorithms optimized for compression quality. Encoding is 5-10x slower than JPG or WebP, but viewing (decoding) is fast.
Does AVIF work in Safari?
Yes, Safari 16+ (Sep 2022) supports AVIF. Combined with Chrome, Firefox, and Edge, AVIF has 93%+ browser support.
Can I batch convert JPG to AVIF?
Yes. Drop multiple JPG files at once. Note: each file takes 3-10 seconds to encode due to AV1 complexity.
Are my photos uploaded?
No. AVIF encoding runs entirely in your browser using WebAssembly. Your photos never leave your device.