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WebP to AVIF Converter

Convert WebP files to AVIF, one or many at a time.

or drag them here, or paste with Ctrl+V / ⌘V

Images (JPG, PNG, WebP, HEIC, SVG, AVIF, GIF, BMP, ICO, TIFF) and PDF documents · up to 10 files at once

Conversion options

PDF pages

Leave empty for all, or type e.g. 1-3, 5, 8-

Resolution
PDF document
Page size
Images per page
Image resolution in the PDF
Image
Icon sizes (px)
Video

Lower resolutions reduce file size. The video will not be enlarged.

Audio
Bitrate

Higher means better sound and a larger file. “Auto” keeps the bitrate of the original (at least 128 kbit/s); from lossless files it uses the format’s high-quality setting.

Sample rate
Channels
Cut (optional)

Times such as 1:30 or 0:45.5. Leave empty to keep the whole recording.

Picture

The video shows this picture for the whole length of the sound – for example to upload music or a podcast to YouTube.

Video size
Document
Resolution
Pages to convert

Several pages arrive as a ZIP with one image per page.

Shown by e-readers in the library; leave empty to keep what the document says.

PDF/A-2b embeds all fonts so the file looks the same in many years; required by many courts and public offices.

Scales every sheet so it fits on a single page instead of being split across several.

Sheets

CSV and TSV hold one table: with “Every sheet” each sheet becomes its own file, together in a ZIP.

Separator

Excel in many European languages expects a semicolon; most other programs a comma.

Convert on our server?

If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 7 days so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Your images are processed in your browser and are not uploaded. If a file is too large for your browser or in a format it can’t handle, we ask before converting it on our server. The original is deleted right after conversion; the result is kept for 7 days for you to download, unless you delete it sooner. Privacy details

How to use: WebP to AVIF

  1. 1 Choose or drag in one or more WebP files.
  2. 2 Adjust the AVIF quality if you want smaller or sharper files.
  3. 3 Click Convert. The gear button next to a file opens its options; files you add afterwards are converted straight away.
  4. 4 Download the AVIF files one by one, or all at once as a ZIP file.

About this tool

WebP is a modern web format from Google. It makes files much smaller than JPG or PNG at similar quality and supports transparency. AVIF is the newest web image format, based on the AV1 video codec. It usually gives the smallest files at good quality and supports transparency.

Converting to AVIF is useful for websites where the smallest possible files matter. Animated files are converted using their first frame. Most browsers can't create AVIF files themselves, so the first time you convert, the tool downloads an AVIF encoder (about 1.1 MB) that runs on your device.

Files are converted in your browser and are not uploaded to a server. If a file is too large for your device, the tool explains why and asks before sending it anywhere. Hidden metadata such as the GPS location is not copied into the AVIF.

Frequently asked questions

Are my files uploaded to a server?

No. The conversion runs in your own browser, so your files stay on your device. Only if a file is too large for your browser does the tool offer server processing, and it asks you first.

Will I lose quality converting WebP to AVIF?

AVIF uses lossy compression, so there is a small loss. At the default quality it is very hard to see; choose a higher quality for sharper files or a lower one for smaller files.

Are animations kept?

No. Animated WebP files are converted using their first frame, so the AVIF is a still image.

Which programs can open AVIF files?

All current versions of Chrome, Edge, Firefox and Safari show AVIF, as do Windows 11 and recent macOS and Android. Some older programs and websites still don't accept it; use WebP or JPG for those.

Is the image's metadata kept?

No. The AVIF is created from the image pixels only, so EXIF data such as the GPS location, camera model and capture time is not copied. This is useful before sharing images online.

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