JPG to AVIF Converter

Why AVIF is the Future of Image Compression

AVIF (AV1 Image File Format) represents the most significant leap in image compression since WebP. Based on the royalty-free AV1 video codec developed by the Alliance for Open Media (Google, Apple, Mozilla, Netflix, and others), AVIF delivers stunning results:

• 30-50% smaller than JPG at the same visual quality
• 20-30% smaller than WebP
• Royalty-free — unlike HEIC’s HEVC codec, no licensing fees
• HDR and wide color gamut support
• Transparency support (alpha channel)

AVIF vs JPG vs WebP: Real-World Comparison

Metric	JPG	WebP	AVIF
Relative file size	100%	70%	50%
Color depth	8-bit	8-bit	10/12-bit
HDR support	❌	❌	✅
Transparency	❌	✅	✅
Browser support	100%	97%	93%
Encoding speed	Fast	Medium	Slower

The trade-off is encoding speed — AVIF takes longer to encode than JPG or WebP. But since this tool runs locally in your browser, encoding time is typically 1-3 seconds per image.

When to Use AVIF

Web Performance Optimization

If you’re optimizing images for a website, AVIF is the best choice for supported browsers. A page with 10 product images could save 500 KB to 1 MB compared to JPG — directly improving Core Web Vitals and SEO rankings.

Photo Archives

Converting a large JPG photo collection to AVIF can save 40-50% storage space while maintaining visual quality.

Progressive Enhancement

Serve AVIF to browsers that support it (93%+ of users), with JPG fallback for the rest. Most CDNs and CMS platforms (WordPress, Cloudflare, Next.js) support automatic AVIF serving.

Quality Settings

AVIF’s quality slider behaves differently from JPG:

• Quality 70-80%: Excellent for most web use. AVIF at 75% looks comparable to JPG at 90%.
• Quality 85-95%: Best for photography and detailed imagery.
• Quality 50-65%: Aggressive compression for thumbnails and previews.

How This Tool Works

The conversion happens entirely in your browser:

1. Your JPG is decoded using the browser’s native image decoder
2. The pixel data is re-encoded to AVIF format via the Canvas API
3. The resulting AVIF file is available for download

No server processing, no uploads, no waiting in queue. Your images remain completely private.