Converter.Plus

AVIF to WebP Converter

Convert AVIF images to WebP and reduce file sizes without visible quality loss. Free, instant, and 100% private.

If you are serving AVIF images on the web, converting to WebP is one of the highest-leverage performance wins available — typically 25–35% smaller files at the same visual quality, supported in every modern browser. You will most often encounter AVIF files as images optimized by modern CDNs and image pipelines, thumbnails saved from Chrome, Firefox, or Edge, screenshots and exports from macOS Ventura or iOS 16 and later, and WebP is the obvious destination when your goal is website assets. Converter.Plus runs the whole AVIF→WebP conversion locally in your browser — there is no upload, no signup, no watermark, and no per-file size cap. Drop a single file or a whole batch and grab the results as individual downloads or a single ZIP.

Files are never uploaded.
How this works
Network: 0 bytes uploaded

Drop AVIF files here

or click to select from your device

Drag up to 50 files·or a .zip of images

How to convert AVIF to WebP

  1. Open the AVIF to WebP converter: Go to converter.plus/avif-to-webp in any modern browser on your computer or phone.
  2. Add your AVIF files: Drag and drop your AVIF files onto the upload area, or click it to browse your device and select them.
  3. Choose output format and quality: Select your preferred quality setting. The default is optimized for a great balance of file size and visual quality.
  4. Click Convert: Click the Convert button. Converter.Plus processes all files instantly in your browser — no upload or waiting required.
  5. Download your WebP files: Download each converted image individually, or click Download All to save a ZIP archive containing all converted files.

Why use this AVIF to WebP converter

  • ✓100% private — your AVIF files are converted in your browser and never uploaded to a server.
  • ✓Free with no signup, no watermark, no per-file size limit, and no daily quota.
  • ✓WebP output is typically 25–50% smaller than JPG at the same visual quality, ideal for fast websites and lower bandwidth.
  • ✓Batch ready: drop dozens of AVIF files at once and download them individually or as a single ZIP.
  • ✓Works offline once the page has loaded — the conversion code is cached as a Progressive Web App.
  • ✓No tracking pixels and no ad-personalisation cookies on the conversion result page.

About AVIF → WebP conversion

AVIF and WebP are both modern next-generation web formats, but WebP enjoys slightly broader tool support and is the default output of many image pipelines. If you have AVIF files and need WebP for a specific platform, CMS, or design tool that hasn't added AVIF support yet, this converter handles the swap entirely in your browser — no upload, no sign-up, no server round-trip. You get WebP output optimized for the web with excellent compression and universal browser support.

If you are serving AVIF images on the web, converting to WebP is one of the highest-leverage performance wins available — typically 25–35% smaller files at the same visual quality, supported in every modern browser.

AV1 Image File Format (AVIF) was standardized in 2019 by the Alliance for Open Media. AVIF uses the AV1 video codec to achieve roughly 50% smaller files than JPG and 20% smaller than WebP at equivalent quality. It also supports HDR, wide color gamuts, transparency, and lossless encoding — making it the most technically advanced widely-deployed web image format. You will most often encounter AVIF files as images optimized by modern CDNs and image pipelines, thumbnails saved from Chrome, Firefox, or Edge, screenshots and exports from macOS Ventura or iOS 16 and later.

About AVIF to WebP Conversion

AVIF and WebP are both modern next-generation web formats, but WebP enjoys slightly broader tool support and is the default output of many image pipelines. If you have AVIF files and need WebP for a specific platform, CMS, or design tool that hasn't added AVIF support yet, this converter handles the swap entirely in your browser — no upload, no sign-up, no server round-trip. You get WebP output optimized for the web with excellent compression and universal browser support.

Frequently Asked Questions

What is AVIF?

A next-generation open image format developed by the Alliance for Open Media, offering superior compression compared to JPG and WebP.

Why convert AVIF to WebP?

WebP offers significantly better compression than JPG and PNG at the same visual quality — making files smaller and websites faster. It is widely supported in all modern browsers.

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Privacy & trust

  • •Your AVIF stays on your device. Conversion runs locally via the browser's Canvas, WebAssembly, and image-decoding APIs.
  • •No account, no email, no payment information collected — Converter.Plus is free for personal and commercial use.
  • •No watermarks, no upsells inside the converted WebP, and no compression caps on the output file.
  • •Open-source build pipeline — every release is reproducible from the public source and pinned dependencies.