Convert JPG to AVIF Online - Free & Private
AVIF is the highest-compression image format available for web delivery in 2026, producing 40-55% smaller files than JPEG at comparable visual quality. It is supported by Chrome, Firefox, Edge, and Safari, covering over 95% of browsers. Converting JPG hero images and product photos to AVIF produces the largest LCP improvement of any format conversion. All processing runs in your browser using a WebAssembly-compiled AVIF encoder - no files leave your device.
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Why convert JPG to AVIF?
40-55% smaller than JPG, best-in-class quality
Why Convert JPG to AVIF?
JPEG has been the default format for photographs on the web for over 25 years. A JPEG photo optimised for web typically runs 150–400KB. The same image converted to AVIF at equivalent visual quality runs 60–200KB — a reduction of 40–60% with no visible difference on screen.
Converting JPG to AVIF is most effective for: • Product photography on eCommerce sites where dozens of images compound into serious page weight • Blog hero images where a single large JPEG is often the Largest Contentful Paint element • Portfolio and editorial photography where visual quality must be maintained while delivery speed improves • Landing page images where LCP directly affects conversion rates and ad quality scores
File Size and Quality
JPG to AVIF conversion typically achieves 40–60% file size reduction at equivalent visual quality. At AVIF quality 80, a 300KB JPEG becomes approximately 120–180KB with no perceptible quality difference at standard display sizes. AVIF also eliminates the blocky compression artefacts visible in heavily compressed JPEGs.
Browser Support in 2026
AVIF is supported in Chrome 85+, Firefox 113+, Safari 16+, Edge 121+, and Samsung Internet 14+. Global coverage is approximately 93–94%. Serve a JPEG fallback for the remaining 6–7% using the <picture> element.
Frequently Asked Questions
Does converting JPG to AVIF reduce quality?
Not visibly at quality settings of 75 and above. AVIF achieves the same visual quality as JPEG at a smaller file size. The conversion decodes the JPEG to a full-quality intermediate before re-encoding to AVIF — it does not stack compression on top of existing JPEG artefacts.
Can AVIF replace JPEG entirely for web delivery?
For web delivery, yes in most cases. AVIF has 93–94% browser support in 2026. A small percentage of users on older iOS devices cannot display AVIF natively. A <picture> element with a JPEG fallback covers this gap cleanly.
Does AVIF support EXIF metadata?
AVIF can store EXIF, XMP, and IPTC metadata. However, browser-based conversion via the Canvas API strips metadata by default. For workflows where preserving EXIF data is important, use a command-line tool such as avifenc with explicit metadata preservation flags.
Is my JPG file safe to convert here?
Yes. Conversion runs entirely in your browser. Your JPEG file is never uploaded to any server, never stored, and not accessible to MeloTools. Verify this by watching the Network tab in browser DevTools during conversion.
What is the maximum JPG file size?
The free plan supports JPEG files up to 5MB per image. Premium supports up to 75MB per image.