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Convert AVIF to WebP

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AVIF and WebP are both modern web formats, but AVIF's adoption history is shorter. WebP reached broad support years earlier and is today accepted by significantly more desktop applications, image editors, and CMS platforms. Converting AVIF to WebP trades roughly 20–50% in compression efficiency for meaningfully wider compatibility — the WebP will open in software that still doesn't handle AVIF, without the browser-version requirements AVIF carries. Full alpha-channel transparency is preserved in both directions.

When you’d want this conversion

  • Improving web performance — smaller files mean faster page loads and better Core Web Vitals scores
  • Reducing image storage and bandwidth costs on a CDN or web server
  • Switching a site's image library from JPEG to a smaller modern format
  • Upgrading existing AVIF assets without going back to a raw source

What to watch for

Both formats are lossy — re-encoding applies compression twice. Start from the highest-quality source you have and keep the quality slider at 80%+ to minimise compounding artifacts.
From.avif

AVIF

AV1 Image File Format

  • Lossy compression
  • Supports transparency
  • Best for: high-efficiency web images, HDR photography, modern web delivery
To.webp

WebP

Web Picture format

  • Lossy compression
  • Supports transparency
  • Best for: web images, CMS uploads, app assets

More AVIF Conversions

Convert AVIF to PNG Convert AVIF to JPEG

Convert Other Formats to WebP

Convert PNG to WebP Convert JPEG to WebP Convert GIF to WebP Convert BMP to WebP Convert HEIC to WebP Convert SVG to WebP

Related Tools

Convert WebP to AVIF Compress AVIF Image Converter

Related Guide

PNG vs JPG vs WebP vs AVIF

How to Use

  1. 1

    Drop your AVIF file or click to browse — the output format is already set to WebP.

  2. 2

    Adjust the quality slider. 85–90% is a good starting point; lower values produce smaller files with more visible compression.

  3. 3

    Click "Convert to WebP" — conversion runs entirely in your browser.

  4. 4

    Download the WebP.

Frequently Asked Questions

How much smaller will the WebP be compared to the AVIF?

Typically 25–34% smaller at equivalent visual quality. Exact savings depend on image content; natural scenes compress more than high-frequency graphic detail.

Does re-encoding from AVIF to WebP degrade quality further?

Yes — both formats are lossy, so a second compression pass is applied on top of the existing AVIF encoding. At quality settings of 80%+, the added degradation is minimal and typically imperceptible in photographic content. Avoid low settings to prevent compounding artifacts.

Does WebP work everywhere?

All major browsers — Chrome 23+, Firefox 65+, Edge 18+, and Safari 14+ — support WebP natively, as do most modern image editors and CMS platforms. Very old software or email clients may not support it; PNG or JPEG is the safer choice for those contexts.

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Browse every supported format pair — pre-configured and ready to go.

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