Convert AVIF to WebP Online — Animation Preserved

AVIF is excellent for cutting-edge compression (28% smaller than WebP), but WebP offers unique advantages:

• Better browser support: WebP works on 93% of browsers vs AVIF's 92%
• Faster decode: WebP decodes 2-3× faster than AVIF (VP8/VP9 vs AV1 codec)
• Progressive enhancement: Use both formats with <picture> tag (AVIF for modern browsers, WebP as fallback)
• Lower CPU load: WebP requires less processing power, better for older devices
• Mature ecosystem: WebP has been stable since 2010; AVIF is newer (2019)

When to choose WebP: Wide compatibility, faster decode, progressive enhancement fallback.
When to keep AVIF: Cutting-edge browsers, file size critical, modern-only audience.

Yes. WebP files will be 30-50% larger than AVIF at equivalent visual quality. This is expected and acceptable:

• 500 KB AVIF → 650-750 KB WebP (30-50% larger)
• 2 MB AVIF → 2.6-3.0 MB WebP (30-50% larger)
• 10 MB AVIF → 13-15 MB WebP (30-50% larger)

Why? AVIF uses cutting-edge AV1 compression (latest codec, best efficiency). WebP uses mature VP8/VP9 compression (proven, fast decode). You're trading file size for faster decode and better browser support. WebP is still 25-35% smaller than JPG. Need universal compatibility? Try our AVIF to JPG converter for 100% browser support.

Minimal loss. This is a lossy→lossy transcode (AVIF decoded, then re-encoded to WebP quality 90). Quality loss is typically imperceptible to human eyes:

• Transparency preserved: Alpha channel fully supported in WebP
• High-quality encode: WebP quality 90 (higher than default 85)
• Perceptual equivalence: Most users cannot distinguish the difference
• Color depth maintained: Full RGB/RGBA encoding

What's NOT preserved:

• EXIF metadata (stripped by default for privacy, configurable)
• HDR metadata (WebP is 8-bit, AVIF 10-bit/12-bit color lost)

Full animation preserved! Animated AVIF files are converted to animated WebP, keeping all frames, timing, and loop behavior intact.

What's preserved:

• All frames: Every frame is re-encoded to WebP
• Frame timing: Original delays between frames maintained
• Loop behavior: Infinite loops and loop counts preserved
• Transparency: Alpha channel fully supported in animated WebP

Frame limit: Animations up to 1,000 frames are supported (roughly 17 seconds to 1.5+ minutes depending on frame rate).

Note: Animated conversions take longer than static images—progress shows "Converting frame X/Y..." so you can track the process.

We support animated AVIF files up to 1,000 frames. The maximum duration depends on your animation's frame rate:

• 10 fps: Up to 1 minute 40 seconds
• 15 fps: Up to 1 minute 7 seconds
• 24 fps: Up to 42 seconds
• 30 fps: Up to 33 seconds
• 60 fps: Up to 17 seconds

Tip: Most animated AVIFs are 10-30 fps. If your animation exceeds 1,000 frames, consider trimming it or reducing the frame rate before conversion.

WebP fully supports alpha channels (transparency). Any transparency in your AVIF will be preserved in the WebP output with minimal quality loss.

• AVIF with alpha → WebP with alpha (default behavior)
• AVIF without alpha → WebP without alpha (RGB only, smaller file)

Both AVIF and WebP support transparency, so this conversion maintains alpha channel data. For lossless transparency preservation, use AVIF → PNG instead.

WebP decodes 2-3× faster than AVIF in browsers. This is a major reason to choose WebP for wide audiences.

Typical browser decode times (10MP image):

• JPG: 50-100ms (fastest, baseline codec). Try our AVIF to JPG converter for fastest decode and 100% compatibility.
• WebP: 100-200ms (fast, VP8/VP9 codec)
• AVIF: 300-600ms (slow, AV1 codec)

Why? AVIF uses the cutting-edge AV1 codec optimized for compression over speed. WebP uses the mature VP8/VP9 codec with hardware acceleration in most browsers. Faster decode = better user experience on older devices and mobile.

Yes. WordPress has supported WebP natively since version 5.8 (July 2021). After converting your AVIF images to WebP, you can upload them directly to WordPress without plugins.

• Native support: WordPress 5.8+ handles WebP uploads, resizing, and thumbnail generation
• CDN integration: Cloudflare, Fastly, and most CDNs can auto-serve WebP to compatible browsers

Note: WordPress doesn't support AVIF uploads yet (as of late 2025), making AVIF→WebP conversion useful for CMS workflows.

No, not reliably. Most email clients (Outlook, Gmail web, Apple Mail, Yahoo) do not support WebP images.

Recommendation: If your images are destined for email, use our AVIF to JPG converter instead—JPG is universally supported in email clients.