Convert to AVIF

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Select an image to convert

Step-by-Step Workflow

01

Upload source image(s) for conversion

02

Auto-processes at 85% quality (optimal default)

03

Download results

Specifications

Compression vs JPG
50-60% smaller at same quality
Compression vs WebP
40-50% smaller at same quality
Recommended quality
85% (visually lossless)
Browser support
80% (Chrome 85+, Firefox 93+, Safari 16+)
Encoding time
3-5s (slower than WebP, worth it)

The Challenge

WebP delivered 30% savings over JPG—impressive in 2015. AVIF crushes both: 50-60% smaller than JPG, 40-50% smaller than WebP at equivalent visual quality. Based on AV1 video codec, AVIF maintains fine details JPG destroys and compresses complex textures WebP struggles with. Netflix research: AVIF at 50% file size = JPG at 100% perceptual quality. For businesses: hero image loads in 800ms instead of 2s (LCP improvement), product galleries use 60% less CDN bandwidth, mobile users on 3G see content 50% faster. Barrier was browser support—Safari held out until version 16 (Sept 2022). Now at 80% global coverage and rising monthly. With proper <picture> fallbacks, AVIF delivers massive savings to 4 in 5 users while gracefully degrading for the rest.

Best Practices

  • AVIF preserves texture details JPG blurs—convert close-up product photos (fabric weave, wood grain, food detail) for 60-70% size reduction with superior quality
  • For e-commerce hero images, use 90% quality AVIF—40% faster load than WebP, instant perceived performance on 4G/5G connections
  • Prioritize mobile AVIF delivery—mobile bandwidth costs users real money, AVIF's 50% savings directly reduces their data consumption by half
  • Convert image-heavy blog posts first—readers on slow connections see content 30-50% faster, reduces bounce from timeout/frustration
  • Always test AVIF at actual display size—encoder excels at preserving important details, so 80% quality often looks sharper than 90% JPG when viewed full-screen
  • Combine AVIF with proper sizing: resize to exact display dimensions (no oversized images), then convert to AVIF for 80-90% total reduction vs baseline
  • Archive original high-quality sources—AVIF is lossy, re-encoding compounds quality loss like repeated JPG saves
  • Photography portfolios benefit most—50+ gallery images load under 3 seconds with AVIF versus 8-12s with JPG
  • Check caniuse.com quarterly—Safari 16+ adoption increases AVIF coverage, fallback traffic shrinks monthly

Frequently Asked Questions

What are real-world file size differences: AVIF vs WebP vs JPG?

Typical photo compression: JPG 200KB → WebP 140KB (30% reduction) → AVIF 80KB (60% vs JPG, 43% vs WebP). PNG screenshot 800KB → WebP 250KB → AVIF 120KB (85% vs PNG, 52% vs WebP). Gains vary by content: complex images (detailed textures, foliage) see bigger savings than simple graphics. AVIF's key advantage: maintains sharpness at file sizes where JPG becomes blocky and WebP softens edges.

Do I really need fallback images for AVIF?

Yes. 20% of browsers lack AVIF support (Safari 15, Firefox 92 and older, legacy Android). Without <picture> fallbacks, 1 in 5 visitors see broken images. Browser automatically picks best format it supports. This delivers maximum compression to 80% while gracefully degrading for remaining 20%.

What AVIF quality setting balances size and visual quality?

85% for general deployment—visually lossless with 50-60% smaller files than JPG. 90-95% for hero images or critical content—still 40% smaller than JPG. 75-80% for thumbnails or massive galleries—acceptable quality at 60% smaller. AVIF's perceptual model differs from JPG—75% AVIF often looks sharper than 85% JPG because encoder focuses artifacts away from edges and important features. Test at actual display size to judge quality.

How does AVIF handle transparency versus PNG or WebP?

AVIF supports full alpha channel with superior compression—30-40% smaller than WebP transparent images, 60-80% smaller than PNG with perfect edge preservation. Transparency channel uses same AV1 compression as RGB—maintains sharp edges even at low quality. Ideal for logos, icons, overlays. Convert transparent PNGs to AVIF for web deployment—massive file reduction with zero quality loss on transparency. Example: 200KB transparent PNG → 40KB AVIF (80% reduction).

Why does AVIF encoding take 3-5 seconds versus under 1 second for WebP?

AV1 codec is computationally intensive—uses advanced prediction and entropy coding for superior compression. Browser-based encoder runs on your CPU without hardware acceleration. Trade-off: 3-5s processing for 50-60% file size reduction versus WebP is worth it for production deployment. For batch conversion (50+ images), use command-line tools with hardware acceleration (libavif/avifenc) or process overnight. Decoding (viewing) is fast—browsers render AVIF as quickly as JPG with GPU support.

Should I convert existing WebP images to AVIF or start from JPG source?

Always convert from highest quality source available—never from already-compressed WebP. WebP→AVIF compounds lossy compression artifacts. Best workflow: original camera JPG (95-100% quality) → AVIF 85%. If you only have WebP, converting to AVIF still saves 30-40% but quality won't match starting from uncompressed source. Archive original high-quality JPGs/PNGs before any lossy conversion for future re-encoding flexibility.

Does AVIF work with lazy loading and responsive images?

Yes, AVIF integrates with all modern image delivery patterns. Lazy loading, responsive with srcset. CDNs (Cloudflare, Cloudinary) support automatic AVIF conversion and delivery—upload JPG once, CDN serves AVIF to capable browsers automatically with proper Content-Type headers.