Convert JPG to AVIF - Free Online Image Converter

Online convert JPG to AVIF format with our fast and free image converter. No email or registration. Batch conversion up to 100 MB with advanced compression for high quality and smaller file sizes.

Click to select multiple images

Only JPG files will be accepted

How to Convert Images

1

Select your input and output formats from the dropdowns above

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Click or drag and drop your images into the upload area

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Your images will be automatically converted

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Download individual files or all files as a ZIP

JPG to AVIF Conversion

JPG files use lossy compression, which means they sacrifice some image quality to achieve smaller file sizes. Every time you edit and save a JPG, it loses a bit more quality. JPGs also don't support transparency, so every pixel must have a color value.


AVIF is a modern image format derived from the AV1 video codec. It offers excellent compression efficiency and high image quality, often outperforming WebP and JPEG. It supports HDR and wide color gamut, making it a future-proof choice for web images.

Frequently Asked Questions

JPG's 30-year-old compression algorithm is mathematically limited in efficiency - its 8×8 DCT block structure creates the characteristic compression artifacts and struggles with modern high-resolution displays. AVIF, based on the cutting-edge AV1 video codec (2018), uses sophisticated intra-frame prediction and transforms, achieving 30-50% smaller files than JPG at superior perceptual quality. Converting to AVIF future-proofs your images with HDR support (10-bit and 12-bit color depth vs JPG's 8-bit), wide color gamut (P3, Rec. 2020), and film grain synthesis that maintains texture in highly compressed images. A 500KB JPG becomes 200-300KB as AVIF with better detail preservation. Critical for photography portfolios, high-quality product images, and progressive web apps. Browser support is growing (Chrome 85+, Firefox 93+, Safari 16.1+, Edge 121+) - implement with JPG fallback for older browsers.
Yes, Convertlet is 100% free to use. You can convert as many images as you want without any hidden fees or subscriptions.
Absolutely. All conversions happen securely. Your files are processed and then immediately deleted from our servers to ensure your privacy.
We support a wide range of image formats. Input formats: .jpg, .jpeg, .png, .webp, .gif, .svg, .heic, .heif, .avif, .bmp, .ico, .tiff, .dng, .eps. Output formats: .png, .jpg, .jpeg, .webp, .avif, .bmp, .gif, .ico, .tiff. You can convert between any of these formats easily.

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