AVIF compressor and WebP to AVIF converter
Create compact AVIF website images, convert WebP to AVIF and choose an exact maximum file size—all privately in your browser.
Free AVIF compressor for modern websites
Our AVIF compressor creates efficient image files for websites, blogs, portfolios and ecommerce pages. Upload a JPG, PNG, WebP or existing AVIF file, enter the maximum size you need, and download an optimized AVIF image.
AVIF is a modern format built for strong compression efficiency. It can deliver smaller downloads than older image formats while retaining useful visual detail, making it a practical option for performance-focused websites.
Convert WebP to AVIF online
This page also works as a WebP to AVIF converter. Upload your WebP image and AVIF is already selected as the output. You can keep a generous size limit for maximum quality or enter a strict target such as 100KB.
When should you use AVIF?
- Large photographs and featured images that contribute heavily to page weight
- Performance-focused landing pages and blog posts
- Responsive image sets where modern browsers can receive AVIF
- Images that must fit below a specific upload limit
Exact-size AVIF compression
The compressor tests multiple quality settings and selects the best result below your target. If encoding adjustments are insufficient, it gradually reduces dimensions while preserving the original aspect ratio.
AVIF compressor questions
Can all major browsers display AVIF?
Current versions of major browsers support AVIF. For broader legacy compatibility, websites can provide WebP or JPEG fallbacks.
Can I compress an existing AVIF image?
Yes. Upload an AVIF file, select your target size and download a newly optimized AVIF result.
Are my files uploaded?
No. The conversion and compression process runs locally on your device.