Convert up to five AVIF images to WebP in your browser. No file uploads or account needed.
Add your AVIF images to convert them to WebP right in your browser.
The output is preset to WebP. Each AVIF file can be up to 10 MB.
Choose files
Drop your AVIF images into the box or choose them from your device.
Convert
Convert — the output format is already set to WebP, so just click the convert button.
Download
Download each WebP image individually, or choose Download all as ZIP when at least two files are ready.
AVIF (AV1 Image File Format) is a modern image format that delivers excellent compression and quality. It is ideal for web photos when you need smaller files than JPEG or WebP with broad browser support.
WebP is a modern image format developed by Google that provides superior lossless and lossy compression. It supports transparency and animation, and typically produces files 25–35% smaller than JPEG or PNG at equivalent quality.
AVIF is a modern raster image format based on the AV1 codec. It typically delivers smaller files than JPEG or WebP at similar visual quality, supports HDR, wide color gamuts, and transparency, and is supported in all major browsers.
AVIF was finalized in 2019 as part of the AV1 video codec ecosystem developed by the Alliance for Open Media. It brings AV1 compression to still images and is increasingly adopted for modern web delivery.
WebP is a modern raster image format that supports both lossy and lossless compression, transparency (alpha channel), and animation. It uses predictive coding based on VP8 video compression technology and typically produces files 25–35% smaller than JPEG or PNG at equivalent quality.
WebP was announced by Google in 2010 and released as an open format in 2018. It was developed to replace JPEG, PNG, and GIF on the web with a single format offering superior compression for both lossy and lossless images.
AVIF often beats WebP on compression efficiency, especially for high-quality photos. WebP still has slightly broader tooling support in older pipelines.
Converting AVIF to WebP is useful when you need to optimize images for a specific platform or use case. Whether you are preparing photos for a website, reducing file sizes for faster loading, or switching to a format with different features like transparency or better compression, ConvertPort handles the conversion instantly while preserving as much quality as possible.
Follow these guidelines to get the best results when converting AVIF images to WebP:
Convert up to five images per batch on your device. When several files are ready, you can download them as a single ZIP.
Your browser opens, processes, and prepares your images for download.
Download the converted images before closing the tab. ConvertPort does not keep a copy for you to retrieve later.
No. Image processing takes place on your device.
No. The download is a separate file.
Save the file to your device first, then share the file through the app of your choice.
Yes, converting AVIF to WebP with ConvertPort is free. There are no hidden fees, watermarks, or required accounts. You can convert up to five images per batch, with files up to 10 MB each.
Quality depends on the formats involved. Converting from a lossless format like PNG to a lossy format like JPG may reduce quality slightly. ConvertPort uses high-quality conversion settings to minimize any visible loss. For the best results, start with the highest quality source image available.
Most AVIF to WebP conversions complete within a few seconds. Larger files up to the 10 MB limit may take slightly longer. You can convert up to five images in a single batch.
Each AVIF file can be up to 10 MB. Convert up to five images per batch.
No. Choose your AVIF files in your browser, convert them to WebP and save the results. You can use the tool without installing anything or creating an account.
Yes. Your AVIF images and converted files stay on your device. ConvertPort processes the files in your browser.