AVIF Converter
Convert JPG, PNG and WebP images to AVIF online for free. Choose your quality, preserve transparency and download optimized AVIF files directly in your browser.
Converted Images
0 filesHow to Convert Images to AVIF
Turn your existing images into modern AVIF files in three quick steps.
Upload your images
Drop JPG, PNG, WebP, GIF or BMP files into the converter. Multiple images can be selected at once.
Choose quality
Use the quality slider to balance visual quality and file size. The Balanced preset is a practical starting point for web images.
Download AVIF
Convert your images and compare the original and AVIF file sizes before downloading individual files or the complete batch.
Smaller Images for Modern Websites
AVIF is designed for efficient image delivery while supporting both lossy and lossless encoding. :chatgpt-content-reference{index="1"}
Reduce Image Weight
AVIF can produce compact files while maintaining strong visual quality, helping reduce the amount of image data browsers need to download.
Transparency Support
AVIF supports alpha transparency, making it useful for graphics, product images, UI assets and other images that need transparent backgrounds.
Modern Web Delivery
AVIF is supported by current browsers, and the HTML picture element can provide AVIF with WebP or JPG fallbacks when broader compatibility is needed. :chatgpt-content-reference{index="2"}
What Is an AVIF Image?
AVIF stands for AV1 Image File Format. It is a modern image format based on technology from the AV1 video codec. AVIF supports both lossy and lossless compression, transparency and other advanced image features, making it an increasingly useful option for websites and digital products. :chatgpt-content-reference{index="3"}
The main reason to convert an image to AVIF is efficiency. A smaller image file can reduce transfer size and make it easier to deliver visual content over the web. The actual savings depend heavily on the source image, dimensions, visual complexity and encoding settings, so it is better to compare the original and converted file rather than assume a fixed percentage reduction.
When Should You Convert Images to AVIF?
AVIF is particularly useful when you are preparing images for a modern website, landing page, blog, online store or web application. Photos, large visual assets and many detailed graphics can benefit from an efficient next-generation format. For transparent graphics, AVIF can also be a useful alternative to larger PNG files when browser compatibility is properly handled.
AVIF and Browser Compatibility
Modern browsers can request and display AVIF images, but image-format support can still vary by browser and platform. MDN documents AVIF as a supported modern image format and recommends using the picture element when you need alternative formats for compatibility. :chatgpt-content-reference{index="4"}
For production websites, a practical approach is to serve AVIF where supported and provide a suitable fallback such as WebP or JPEG. This lets you benefit from modern image compression without relying on a single format for every browser or environment.
AVIF Quality: What Setting Should You Use?
There is no universal quality number that works best for every image. A setting around 80–85 is a useful starting point for many web images, but photographs, screenshots, illustrations and transparent graphics can behave differently. Lower values generally prioritize smaller files, while higher values prioritize image fidelity.
- 65: useful when file size is the main priority.
- 82: balanced starting point for many website images.
- 92: useful when you want stronger visual fidelity.
- 100: prioritizes maximum quality in this lossy quality-control path and can produce larger files.
AVIF vs JPG vs PNG vs WebP
Each image format has a different role. Choose based on image content, compatibility and the delivery environment.
| Format | Best for | Transparency | Compression |
|---|---|---|---|
| AVIF | Modern web delivery, photos, detailed graphics | Yes | Lossy or lossless |
| WebP | General web images and broad modern support | Yes | Lossy or lossless |
| JPG | Photos and compatibility | No | Lossy |
| PNG | Lossless graphics, screenshots and transparency | Yes | Lossless |
Tips for Using AVIF on a Website
Converting images is only one part of image optimization. The way the resulting files are delivered also matters.
- Resize images to the dimensions they actually need before converting extremely large originals.
- Compare visual quality at 100% zoom instead of choosing a quality number blindly.
- Keep your original source files so you can create a different output later.
- Use AVIF with an appropriate WebP or JPEG fallback when your audience includes browsers or systems that may not support AVIF.
- Use the HTML
<picture>element when you want format-specific sources and a fallback image. :chatgpt-content-reference{index="5"} - Always check the final file size because savings vary with image content and encoding settings.
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AVIF Converter FAQs
Quick answers about converting images to AVIF and choosing the right settings.
What is an AVIF converter?
An AVIF converter changes supported image files such as JPG, PNG and WebP into the AVIF format. AVIF is a modern image format designed for efficient web delivery.
Is this AVIF converter free?
Yes. You can use the converter without creating an account or installing desktop software.
Are my images uploaded to a server?
The conversion workflow on this page processes the selected image data in your browser using a WebAssembly AVIF encoder. Your images are not sent to FreePixelKit for the conversion itself.
Can I convert PNG to AVIF?
Yes. PNG files are supported, including images that use transparency. The resulting AVIF can also retain transparency.
Can I convert JPG to AVIF?
Yes. JPG and JPEG images can be selected and converted to AVIF. Because JPG is already lossy, compare the output visually before replacing your original.
What AVIF quality should I use?
Around 80–85 is a sensible starting point for many web images. Use a lower value when file size matters more and a higher value when visual fidelity is more important.
Does AVIF always produce a smaller file?
No. The result depends on the source image and encoding settings. Always compare the original and converted file sizes instead of assuming a fixed reduction.
Can I use AVIF with a fallback format?
Yes. A common production approach is to provide AVIF as the preferred source and use WebP or JPEG as a fallback through the HTML picture element.
Ready to Convert Your Images to AVIF?
Choose your images, adjust quality and create optimized AVIF files directly in your browser.