AVIF to WebP

Click or drag AVIF files here
Click to upload AVIF files
Supports PNG, JPG, WebP, GIF, ICO, BMP, SVG, HEIC, AVIF, TIFF, PDF, PSD, JXL, RAW

Convert AVIF next-generation images to modern WebP format entirely in your browser — your files never leave your device. While AVIF offers the best compression available today (about 20% smaller than WebP), its browser support is still limited. WebP delivers 25-35% smaller files than JPG with support in Chrome, Firefox, Edge, and Safari 14+, covering over 97% of global users. Converting AVIF to WebP maintains excellent compression while dramatically improving compatibility, making it the sweet spot for web image optimization.

Related

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AVIF to JPG

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JPG to WebP

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Image Compressor

Use Cases

  • Websites offering both AVIF and WebP need WebP versions as a fallback compatibility layer.
  • AVIF images downloaded from sites don't open in Safari 15 and below — convert to WebP to fix compatibility.
  • Developing WeChat Official Accounts and Mini Programs where WebP has better support than AVIF for article images.
  • App image resource optimization — WebP has more mature Android and iOS compatibility than AVIF.
  • AVIF images need sharing with others — WebP displays natively on modern phones, more reliable than AVIF.
  • E-commerce product image optimization — WebP is smaller than JPG and supported by the vast majority of buyers' browsers.
  • Personal blogs and forums using WebP images for faster loading while avoiding AVIF compatibility issues.
  • Animated AVIF files are already small but animated WebP has better compatibility and plays in more environments.
  • Embedding images in emails — WebP has higher support than AVIF, ensuring recipients can see the images.
  • Batch processing image assets into a unified WebP format for optimized size and reliable compatibility.
  • AVIF images don't display within certain apps — convert to WebP for normal viewing.
  • Frontend projects implementing image format downgrade — converting AVIF to WebP as a fallback.

How to Use

  1. Click the upload area or drag an AVIF file onto the page. Only .avif format files are accepted.
  2. Local decoding starts automatically in the browser after file selection, with alpha channels fully preserved.
  3. Wait for the conversion progress to complete. Animated AVIF preserves animation as animated WebP.
  4. Preview the converted WebP dimensions and file size, then click download to save.

Features

  • 100% client-side processing: AVIF decoding and WebP encoding both happen in your browser via Web Workers — images are never uploaded to any server
  • Compression/compatibility balance: WebP is 25-35% smaller than JPG with much wider browser support than AVIF
  • Preserves alpha transparency: WebP supports alpha channels — AVIF transparent backgrounds are perfectly retained
  • Animated AVIF support: Animated AVIF converts to animated WebP with animation preserved at smaller file sizes
  • High quality encoding: Outputs WebP at 0.92 quality parameter for minimal visual quality loss
  • Auto-convert on upload: Select an AVIF file and processing starts immediately — no extra clicks needed
  • Real-time progress tracking: Visible decode/encode percentage even for large images

AVIF vs WebP vs JPG: How to choose a modern image format?

FeatureAVIFWebPJPG
CompressionHighest (~20% smaller than WebP)25-35% smaller than JPGBaseline
Global browser support~85%~97%✅ 100%
Safari supportSafari 16+ (2022)Safari 14+ (2020)All versions
Transparency✅ Yes✅ Yes❌ No
Animation✅ Yes✅ Yes❌ No
Best forCutting-edge optimization, new browsersMainstream web, size + compatibilityMaximum compatibility, legacy devices

FAQ

Will converting AVIF to WebP reduce image quality?

Some re-compression loss is expected since this tool uses lossy WebP encoding (at quality 0.92). For everyday web use and sharing, the difference is nearly invisible. If you need complete losslessness, convert to PNG format instead, though file sizes will be much larger.

Should I choose AVIF or WebP?

AVIF is about 20% more compressed than WebP and is the most advanced format, but has less compatibility (requires Chrome 85+, Safari 16+). WebP also has excellent compression with better compatibility (Chrome 32+, Safari 14+). Use AVIF if your audience uses newer browsers; WebP is the safer choice for broader compatibility.

Will animation be preserved when converting animated AVIF to WebP?

Yes, animation is preserved. Animated AVIF (AVIF animation) converts to animated WebP with animation frames and timing fully retained. Animated WebP also has much better compatibility than animated AVIF.

Will transparent backgrounds be preserved?

Yes, fully preserved. WebP format supports alpha transparency channels — transparent areas in AVIF are converted correctly with no white or black fill.

Are AVIF images uploaded to a server?

No uploads. All conversion happens locally in your browser via Web Workers. Your image files are never sent to any external server or stored in the cloud. Processing source material and images is completely safe.

Will the WebP file be larger than AVIF after conversion?

Typically slightly larger, roughly 15-30% bigger, because AVIF has higher compression efficiency. But WebP is still 25-35% smaller than JPG, striking an excellent balance between file size and compatibility.

Is batch conversion supported?

Currently one AVIF image is processed at a time for browser-side stability and performance. Process files one by one for multiple conversions. Batch functionality may be added in future versions.

Which browsers and devices support WebP?

Chrome 32+, Firefox 65+, Edge 18+, Safari 14+ (macOS Big Sur+, iOS 14+), and Android 4.2+ all natively support WebP. Major apps like WeChat, QQ, and Alipay also support WebP display. Over 97% of global users now have WebP-supporting browsers.