Batch convert WEBP images to AVIF format. 100% browser-based, no uploads, no limits.
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Accepts WEBP files
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WebP files are 25–35% smaller than JPEG or PNG.
AVIF is the next frontier in web image compression — delivering even smaller files than WebP while maintaining the same visual quality. Converting WebP to AVIF can further reduce your image payload, helping you achieve better performance scores and lower bandwidth costs on sites targeting modern browsers.
WebP is Google's modern image format, built to replace JPEG and PNG on the web. It delivers 25–35% better compression than JPEG with no visible quality loss, and supports both lossy and lossless modes, as well as alpha transparency and animation. Since 2022, WebP has been supported by all major browsers.
For most websites today, WebP is already an excellent choice. It strikes the right balance between compression efficiency and broad compatibility — supported by every modern browser and increasingly by desktop applications and image processing services.
However, web performance optimization is an ongoing process. As browsers continue to improve and AVIF adoption grows, converting existing WebP assets to AVIF provides another meaningful step forward in reducing image weight and improving page load speeds.
AVIF (AV1 Image File Format) is a modern image format based on the AV1 video codec, developed by the Alliance for Open Media and ratified in 2019. It represents a significant leap in compression technology — AVIF images are typically 20–50% smaller than equivalent WebP files, and often 50% or more smaller than JPEG, at the same visual quality.
AVIF supports high dynamic range (HDR), wide color gamut, and 10-bit color depth — capabilities that matter for high-quality photography and cinema-grade content. It handles both lossy and lossless compression, as well as transparency, making it a complete replacement for all previous web image formats.
Browser support for AVIF has grown rapidly. Chrome, Firefox, Edge, and Safari 16+ (released in 2022) all support AVIF. For websites targeting modern audiences, AVIF is the most efficient image format available and the direction the industry is moving toward for high-performance web delivery.
Results vary by image content, but AVIF typically produces files that are 20–50% smaller than WebP at the same visual quality. For photographs and complex images, the difference is most pronounced. Simpler graphics with flat colors show less dramatic gains.
AVIF is supported by Chrome 85+, Firefox 93+, Edge 121+, and Safari 16+ (released September 2022). As of 2024, these browsers represent the vast majority of web traffic. For sites that must also support older browsers, consider serving WebP as a fallback using the HTML picture element.
If your audience is primarily on modern browsers and performance is a priority, upgrading to AVIF is worthwhile. For maximum compatibility including older devices, consider using the HTML <picture> element to serve AVIF to supported browsers and WebP as a fallback.
WebP is a modern image format developed by Google that provides superior compression for images on the web. It supports both lossy and lossless compression.
Yes! When you upload an image, it never travels to any server — not ours, not anyone else's. Everything happens inside your own browser using your device's processing power. Think of it like using a calculator: the math happens on the device in your hand, not somewhere in the cloud.
You can convert JPEG, PNG, GIF, BMP, SVG, AVIF, and ICO files to WebP format using our converter.