JPG to AVIF Converter
AVIF format is the future of web images. Get files up to 50% smaller than JPG with stunning visual quality.
Drag images (JPG, PNG, HEIC) or Paste (Ctrl+V)
Formats: JPG, PNG, HEIC, WebP, AVIF, PDF
Convert JPG to AVIF…
AVIF is based on the AV1 video codec developed by the Alliance for Open Media (Google, Netflix, Mozilla, Amazon, Apple). This modern algorithm offers a spectacular compression ratio while preserving visual details better than any prior format. Concretely, an image that weighs 800 KB in JPG can drop to 400 KB in WebP and fall to 250 KB in AVIF — with no visible difference to the eye. For a website, that's a substantial performance gain: faster LCP, reduced bandwidth, sensibly improved mobile experience. AVIF is now supported by Chrome, Firefox, Safari, and Edge — nearly all modern browsers. The format to favor for static visuals on a modern site, especially hero images, e-commerce product photos, and all visuals where weight makes a difference on the PageSpeed score. Our converter performs the conversion entirely in your browser, with no server upload.
What you gain by using PixFlow.
- 01Weight reduction up to 50% versus JPG, twice as efficient as WebP
- 02Maximum Core Web Vitals boost: LCP drops, PageSpeed score climbs meaningfully
- 03Modern compatibility: Chrome, Firefox, Safari, Edge support AVIF natively
- 04Massive CDN bandwidth savings, especially on high-traffic sites
- 05Adjustable quality: find the right tradeoff between minimal weight and visual fidelity
- 06Strictly local processing: your confidential visuals don't leave your device
Six scenarios where it changes everything.
Optimizing hero images of a premium marketing site where LCP is the main performance stake
Preparing a modern e-commerce product catalog to compete with the speed standards of large platforms
Reducing the total weight of an online photo portfolio without degrading visible image quality
Serving AVIF images to modern browsers (with JPG fallback via <picture>) to boost targeted performance
Optimizing visuals of a SaaS web app where load time directly impacts user retention
Preparing assets for a modern HTML newsletter whose recipients mostly use recent email clients
How to convert JPG to ultra-compressed AVIF
- 01Select your .jpg files in the upload area.
- 02The tool encodes each JPG to modern AVIF format.
- 03Adjust quality to target the desired file size (typically 50% lighter).
- 04Download the AVIFs, ready for your high-performance websites.
Everything that deserves a clear answer.
How much smaller is AVIF vs JPG?+
Up to 50% at equivalent visual quality. AVIF is roughly twice as efficient as WebP.
Which browsers support AVIF?+
Chrome, Firefox, Safari, and Edge in modern versions — covering nearly all global users.
Do I need a fallback for older browsers?+
Recommended. Use the HTML <picture> tag with a JPG or WebP fallback to guarantee display everywhere.
Is conversion local?+
Yes, entirely in your browser. No server upload.