What is the JPG to AVIF Converter?
A JPG to AVIF converter re-encodes photos with the AV1 image codec. AVIF files are commonly about half the size of JPEG at equivalent quality, which speeds up websites and improves Largest Contentful Paint. Encoding is done with a WebAssembly AVIF encoder in your browser.
Images are converted inside your browser — nothing is uploaded, so it works for private photos and client work.
How to convert JPG to AVIF
- Drop JPG images.
- Choose quality (60–70% AVIF ≈ 85–90% JPG).
- Wait — AVIF encoding takes a few seconds per photo.
- Download AVIF files.
Why use AnyShift's JPG to AVIF Converter
Files stay on your deviceProcessing happens locally in your browser — nothing is uploaded to a server.
Fast, no queueNo upload or download wait. Results are ready as soon as your device finishes.
No signup, no watermarkUse it as often as you like. Output is clean and full quality.
Works everywhereWindows, Mac, Linux, iPhone, Android and Chromebook — any modern browser.
Popular use cases
- Optimising hero and product images
- Meeting PageSpeed recommendations
- Saving CDN bandwidth
Frequently asked questions
Do browsers support AVIF?
Chrome, Edge, Firefox and Safari 16+ support AVIF — over 93% of users. Use a fallback for older browsers.
Why is AVIF encoding slow?
AV1 compression is computationally heavy; that effort is what makes files so small.
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Last reviewed: Built for: United States, United Kingdom, Canada, Australia, France Part of Image Convert & Edit