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Image Converter Guide
Convert your images to any format quickly and easily without losing quality.
AVIF is the most advanced mainstream image format available today, delivering up to 50% smaller files than JPG at the same quality. If you're optimizing images for the web, converting JPG to AVIF is one of the highest-impact moves you can make. Imglio does it entirely in your browser, nothing is uploaded to any server, and the result is ready to download in seconds.
Why Imglio? AVIF conversion is usually done server-side because it's computationally demanding. Imglio uses WebAssembly to run the AVIF encoder locally in your browser, giving you the same result without ever sending your image to a server. Faster, more private, and completely free.
How to Use
Upload your JPG image or drag it into the tool
Preview the converted AVIF and compare sizes
Download your AVIF file
Features
JPG to AVIF conversion with zero server upload
Up to 50% smaller file size compared to JPG
Batch convert multiple JPGs to AVIF at once
Free, no account, no watermarks
Privacy-first: your images never leave your device
Use Cases
Convert images to different formats (JPG, PNG, WebP, and Avif.)
Ensure compatibility across devices and platforms
Prepare images for web, apps, or social media
Reduce file size by switching to more efficient formats
Frequently Asked Questions
For web use, yes. AVIF consistently produces smaller files than JPG at the same visual quality, often by 40-50%. It also supports transparency and HDR, which JPG doesn't. The tradeoff is that very old browsers don't support AVIF, but all modern browsers do.
Use Imglio's quality slider and set it to 80-90 for visually lossless output. At that level, the AVIF will look identical to the original JPG but at a fraction of the file size.
Most modern CMS platforms like WordPress (with a plugin), Shopify, and Webflow support AVIF. Check your platform's documentation to confirm before converting your entire image library.
Cut your image sizes in half. Convert JPG to AVIF free, entirely in your browser, no upload required.
