What is an AVIF converter?

An AVIF converter is a tool that transforms images from formats like JPG, PNG, WebP, or GIF into AVIF (AV1 Image File Format). AVIF uses modern compression to produce significantly smaller files than JPEG or WebP at similar visual quality, making it ideal for web performance.

How do I convert JPG to AVIF for free?

Open the AVIF Converter at ImageFix, add your JPG files, adjust options, click Convert All to AVIF, and download the AVIF files as a ZIP or individually. The tool is free and requires no signup.

Can I convert multiple images to AVIF at once?

Yes. The converter supports bulk conversion and processes multiple JPG, PNG, WebP, and GIF files in one session. You can download everything as a ZIP archive.

Does converting to AVIF reduce image quality?

AVIF uses lossy compression by default, but the quality is visually excellent at typical settings. For most web use cases, AVIF at moderate quality looks as good as JPEG at higher settings while being significantly smaller. The tool aims to preserve perceptual quality during conversion.

Will AVIF files be smaller than the original JPGs?

In most cases, yes. AVIF typically produces files 30–50% smaller than equivalent-quality JPEG and 20–40% smaller than WebP, especially for photographic content. The exact savings depend on the source image and content complexity.

Does AVIF support transparency?

Yes. AVIF supports an alpha channel for transparency, similar to PNG. When converting a PNG with transparency to AVIF, the transparency is preserved.

Does my image upload to a server during conversion?

No. The converter processes everything locally in your browser using JavaScript and WebAssembly. Your images never leave your device.

Which browsers support AVIF?

AVIF is supported in Chrome 85+, Firefox 93+, Safari 16.4+, Edge 121+, and Opera 71+. Global support is approximately 93–94% as of 2026. Older browsers may not display AVIF images, so fallbacks are recommended for production websites.

Is there a file size limit?

The practical limit depends on your device memory and browser capabilities. For very large images or batches, process files in smaller groups to avoid memory issues.

Can I convert images to AVIF on my phone?

Yes. The converter works in mobile browsers and saves AVIF files directly to your device. Note that some older mobile browsers may not display AVIF previews correctly.

Do converted AVIF files carry a watermark?

No. The converter adds no watermarks or branding. Output files are ready to use as-is.

Should I use AVIF or WebP for my website?

AVIF generally produces smaller files than WebP at equivalent quality, especially for photographs. However, WebP has broader browser support (97% vs 93–94%). The best approach is to serve AVIF with a WebP fallback using the picture element or content negotiation.

Can I convert AVIF back to JPG or PNG?

This tool is designed for converting other formats to AVIF. To convert AVIF back to JPG or PNG, use a dedicated AVIF to JPG converter.

AVIF Converter – Convert JPG, PNG, WebP to AVIF Online

Convert multiple images to AVIF at once for smaller files and faster loading — 100% private, runs in your browser

Drop your images here

or browse files, or paste with Ctrl+V

JPG, PNG, WebP, GIF Unlimited files 100% private Max 45MB each

Images ready to convert to AVIF

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Conversion Options

Keep original filenames photo.jpg → photo.avif

Preserve original dimensions No resizing — pixel-perfect output

Output naming

Prefix (optional) Added before each filename

Tip: AVIF files are typically 30–50% smaller than JPEG at similar quality. Perfect for web performance. Use a WebP or JPG fallback for older browsers.

Summary

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Done!