Free JPG to AVIF converter
Convert JPG to AVIF online — half the size at the same quality
Free JPG to AVIF converter that runs in your browser. Modernize your image library with AV1-based AVIF compression.
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How to convert JPG to AVIF
- 1
Drop your .JPG file (any size, any source)
- 2
Pick an AVIF quality (encoding takes a few seconds per image)
- 3
Download the .AVIF for modern web delivery
Why convert JPG to AVIF?
Bandwidth-cap your CDN bill on a photo gallery
AVIF at quality 70 typically halves a JPG photo's bytes with no visible change. Multiply by ten thousand monthly visitors and the savings add up.
Hit a performance budget on a marketing page
Lighthouse penalizes oversized images. AVIF is the smallest format that still preserves photographic detail.
Build a future-proof image pipeline alongside JPG fallback
Use <picture> with AVIF first, JPG floor. New browsers get the small file; legacy browsers still see something.
About JPG to AVIF conversion
JPG (ISO 1992) is the universal photographic format, born before the web existed. AVIF (Alliance for Open Media, 2019, browser support 2020+) is the cutting-edge alternative, derived from the AV1 video codec. The compression gap between them is about thirty years of research and roughly a 2× file-size reduction at equivalent perceptual quality. AVIF supports transparency (JPG does not), HDR, and 10/12-bit color depth, so it sidesteps most of JPG's structural limits. It's also slow to encode — typically 3–8 seconds for a 5 MP photo on mid-range hardware, an order of magnitude longer than JPG. Converting JPG to AVIF is a second-generation lossy step. Your source JPG already discarded some detail; AVIF discards a little more. The trick is to keep AVIF quality high enough (70+) that the compounding stays invisible. Where this conversion shines: serving images on modern websites, shipping mobile-app bundles, or any case where you control the playback environment. Where it doesn't: email attachments, print pipelines, legacy Office apps, or audiences on browsers older than 2020. For those, stick with JPG.
