How to Convert JPG to AVIF
AVIF represents the cutting edge of image compression technology. Built on the AV1 video codec developed by the Alliance for Open Media, AVIF delivers files that are up to 50 percent smaller than equivalent JPG images while maintaining or even improving perceived visual quality. This makes it the most efficient image format available for web delivery today, surpassing both JPEG and WebP in compression performance.
The technology behind AVIF draws from decades of video compression research. AV1 was designed by a consortium including Google, Apple, Microsoft, Netflix, Amazon, and Mozilla, ensuring broad industry backing and royalty-free usage. When applied to still images, the codec's intra-frame prediction, advanced transform coding, and film grain synthesis produce remarkably detailed images at very low bitrates where JPG would show obvious blocking artifacts.
Netflix was among the first major platforms to adopt AVIF for their title card images, reporting significant bandwidth savings across millions of daily requests. Google uses AVIF throughout their services, and the Android operating system includes native AVIF support. This industry adoption signals that AVIF is not an experimental format but a production-ready standard with long-term viability.
Browser support for AVIF has grown rapidly. Chrome added support in version 85, Firefox in version 93, and Safari in version 16.1. As of 2024, AVIF is supported by browsers representing over 92 percent of global web traffic. For the remaining users, you can implement a picture element fallback serving WebP or JPG, but the majority of your visitors will benefit from AVIF's superior compression immediately.
One of AVIF's standout capabilities is HDR and wide color gamut support. While standard JPG is limited to 8-bit color depth in the sRGB color space, AVIF supports 10-bit and 12-bit color with HDR10 and PQ transfer functions. This future-proofs your images for HDR displays that are becoming standard in smartphones, laptops, and monitors. Converting your JPG library to AVIF positions your content for the next generation of display technology.
At low bitrates, AVIF truly shines compared to JPG. Where a JPG at quality 30 shows heavy blocking and color banding, an AVIF file at equivalent file size preserves smooth gradients, fine textures, and natural skin tones. This makes AVIF ideal for bandwidth-constrained scenarios like mobile networks, emerging markets with slower connections, and applications where storage costs matter.
Steps to Convert:
- Upload your JPG image using the converter above. Drag and drop or click to select from your device.
- AVIF is set as the output format. The converter will apply optimal compression settings for photographic content.
- Download your AVIF file and compare the dramatic file size reduction against your original JPG.
Keep in mind that AVIF encoding can be more computationally intensive than other formats. SnapFormat performs conversion locally in your browser, so processing time depends on your device's capabilities and the image dimensions. For most images, conversion completes within a few seconds. The resulting file size savings make this brief wait worthwhile, especially when you consider the cumulative bandwidth savings for your visitors.
For website migration, start by converting your most-viewed images to AVIF first. Implement the HTML picture element to serve AVIF to supported browsers with JPG as a fallback. Monitor your page speed metrics and bandwidth usage to quantify the real-world impact of the format change on your specific audience and content.