Convert AVIF to WebP Online — Animation Preserved
WebP reaches 93% of browsers with faster decode. Full animation support included.
Drop up to 50 images at once — no install, no sign-up required.
Drop AVIF Files Here
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How it works
- 1 · Drop your files
Drag & drop or choose AVIF files. No account required on Free—paid plans unlock bigger batches, higher limits, and priority queues.
- 2 · We convert securely
Processed on our dedicated servers. Encrypted in transit & at rest. Metadata stripped by default. We never store filenames—only file types & sizes for accounting. We never train AI models on uploads.
- 3 · Download & auto-delete
Grab your WebPs in seconds. Files delete automatically after 1 hour. Delete anytime after downloading with one click.
AVIF (AV1 Image File Format) leverages the AV1 video codec to deliver next-generation compression—typically 50% smaller than JPEG at equivalent quality, with support for HDR, wide color gamut, and both lossy and lossless compression. Standardized by the Alliance for Open Media in 2019, AVIF offers 10-bit and 12-bit color depth plus full alpha transparency. Encoding is slower than JPEG or WebP, but visual quality per byte is exceptional.
Authoritative reference: AVIF Specification (AOMedia)
AVIF is ideal for modern web delivery where cutting-edge compression and HDR support matter. Browser adoption reached critical mass in 2021-2023, with Chrome 85+, Firefox 93+, and Safari 16.4+ now supporting AVIF natively. Encoding is 2-3× slower than WebP, but the compression gains typically justify the extra CPU time for server-side batch processing. For maximum compatibility, serve AVIF with WebP and JPG fallbacks using <picture> elements.
WebP is Google's modern image format offering both lossy and lossless compression modes, plus alpha transparency and animation support—essentially combining the best features of JPEG, PNG, and GIF. Announced in 2010, WebP typically delivers 25-35% smaller files than JPEG at comparable quality using VP8 or VP8L compression. All major browsers now support WebP, making it a practical choice for web optimization.
Learn more: WebP Documentation (Google)
WebP strikes an excellent balance between compression efficiency and ecosystem maturity. It's widely adopted for web delivery, supported across all modern browsers (Chrome 32+, Firefox 65+, Safari 14+, Edge 18+), and offers better compression than JPEG/PNG without the encoding overhead of AVIF.
CMS support: WordPress 5.8+ (July 2021) supports WebP natively. Most modern CMS platforms and CDNs (Cloudflare, Akamai, Fastly) can automatically serve WebP to compatible browsers via content negotiation.
Email limitation: Most email clients (Outlook, Gmail web, Apple Mail) do not support WebP. Always use JPG or PNG for email images, or provide a JPG fallback via <picture> elements in HTML emails.
Frequently Asked Questions
Why convert AVIF to WebP? Isn't AVIF better?
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.
Will my file size increase?
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.
Will I lose quality?
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)
What happens to animated AVIF files?
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.
How long can animated AVIF files be?
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.
What happens to transparency?
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.
How much faster is WebP decode compared to AVIF?
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.
Does WordPress support WebP?
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.
Can I use WebP in emails?
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.
What are the limits for this converter?
| Tier | Max File Size | Max Files/Batch | Parallel Processing |
|---|---|---|---|
| Guest/Free | 50 MB | 50 files | 3 at once |
| Pro | 1024 MB | 1000 files | 6 at once |
Note: File size limits are specific to this converter. Batch and parallel processing limits apply to all images converters site-wide. See all converter limits →
How are credits calculated for this conversion?
Cost: 1 credit per 5 MB
How it works:
- Files up to 5 MB: 1 credit
- 6-10 MB: 2 credits
- 11-15 MB: 3 credits
- 16-20 MB: 4 credits
Example: A 5 MB image = 1 credit. A 95 MB image = 19 credits.
Why per-megabyte? Larger files require more resources (processing, bandwidth, storage).
What are my daily and monthly credit limits?
Credit allocations vary by account tier:
| Tier | Daily Limit | Monthly Limit |
|---|---|---|
| Guest | 100 credits/day | — |
| Free | 100 credits/day | — |
| Pro | — | 12,000 credits/month |
Daily credits (Guest & Free tiers) reset every day at midnight UTC. Monthly credits (Pro) reset on your billing cycle date.
Note: With 1 credit per 5 MB, images under 5 MB cost 1 credit each. Pro users can convert 12,000 images per month.
Answers at a Glance
Quick answers to common questions.
- Are my files secure?
- How long do you keep my files?
- What metadata do you keep?
- What happens after I drop a file?
- Why are conversions so fast?
- How do you measure performance?
- What are the exact limits for each plan?
- Can I process files in bulk?
- Why did my file fail to convert?
- Do you use my files to train AI?
What's New in AVIF to WebP
Latest improvements to this converter
Added Resize and Metadata options.
Animated AVIF now converts to animated WebP (frame-count guardrails + real-time frame progress)
Initial launch of AVIF to WebP converter with quality 90 encoding, faster decode times, and broad browser support.
Need to get more done? Pro starts from $5.
No subscription required.