AVIF image compressor – reduce file size without losing quality

Why compress AVIF images?

• Much smaller files and faster page loads.
• Better user experience on mobile and slow connections (3G/4G).
• Improved SEO by boosting Core Web Vitals (LCP, FID, CLS) on key pages.
• Perfect for blogs, landing pages, portfolios and e-commerce product photos.

How to compress AVIF images with FastLoadImg

1. Click or drag and drop your AVIF images.
2. We automatically compress and optimize everything while keeping the same format.
3. Download all optimized images at once in a single ZIP file or individually.

FastLoadImg runs directly in your browser with a developer-friendly workflow. Ideal for designers, developers and content creators who care about performance and high quality images.

When should I compress AVIF instead of converting?

If you already use AVIF in your website or app and only need to reduce file size, compression is usually enough. If you want even smaller files, you can also try converting your images to modern formats like WEBP or AVIF using our image converter.