WebP to AVIF Converter

Convert image instantly. No upload, 100% private, runs in your browser.

Image Converter Guide

Convert your images to any format quickly and easily without losing quality.

WebP is already efficient, but AVIF goes further. If you're pushing for the absolute best web performance, converting WebP to AVIF can reduce your file size by an additional 20-30% at the same quality. Imglio makes the conversion happen right in your browser, with no server upload and no privacy concerns.

Why Imglio? AVIF encoding requires significant processing power, which is why nearly all AVIF converters do the work on their servers. Imglio uses WebAssembly to run AVIF encoding locally in your browser, giving you the same quality output with complete privacy. No upload, no wait, no server.

How to Use

  1. Upload your WebP file or drag it into the tool
  2. Preview the output and compare file sizes
  3. Download your converted AVIF file

Features

  • WebP to AVIF conversion with zero server upload
  • Further file size reduction over WebP, often 20-30% smaller
  • Supports transparency (AVIF has full alpha channel support)
  • Free, no account, no watermarks
  • Browser-based, works on desktop and mobile

Use Cases

  • Convert images to different formats (JPG, PNG, WebP, and Avif.)
  • Ensure compatibility across devices and platforms
  • Prepare images for web, apps, or social media
  • Reduce file size by switching to more efficient formats

Frequently Asked Questions

For most use cases, yes. AVIF typically produces 20-35% smaller files than WebP at the same visual quality, and it supports HDR and a wider color gamut. Browser support is slightly less than WebP, but all major modern browsers support AVIF.
If you're running a performance-sensitive website and want the smallest possible image files, AVIF is the logical next step after WebP. The size savings directly improve page load times and Core Web Vitals scores.
Yes, AVIF supports full alpha channel transparency. Transparent areas in your WebP image are preserved when converting to AVIF.

Push your web images even further. Convert WebP to AVIF for free. All in your browser, nothing uploaded.