Convert JPG to AVIF — Slash Your Image File Sizes
AVIF delivers files 30-50% smaller than JPG at equivalent visual quality, making it one of the most impactful upgrades for web performance. If your site serves JPG images, converting to AVIF can significantly reduce bandwidth costs and improve page load times. AVIF is supported by all major browsers and is royalty-free.
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HEIC, WEBP, AVIF, TIFF, BMP, SVG, GIF, PNG, JPG, PDF, CR2, NEF, ARW, DNG — up to 50MB each, or 50 from a folder
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Modern format with excellent compression. Limited browser support.
Apple's format. Excellent quality at small sizes.
Lossless format. Large files, ideal for print/archival.
256 colors max. Best for simple graphics.
Uncompressed bitmap. Very large files.
Vector trace. Best for logos and simple graphics. Not a pixel-perfect conversion.
Same format? You might want to compress instead.
SSIM-optimized — finds the lowest file size at your chosen visual fidelity.
Need to crop first? Use the Crop tool. Want to adjust or filter? Try the Editor.
Resize tool → Live preview, percentage scaling, and dimension presets.
Tip: Use PNG or WebP for transparent output. Standalone tool →
Lossless format — files can be large
GIF is limited to 256 colors
Best for logos, icons, and line art. Photos produce stylized results.
BMP files are uncompressed and can be very large. Consider TIFF (LZW) or PNG for lossless with smaller file sizes.
Leave empty for all pages. Multi-page PDFs produce a ZIP.
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JPG vs AVIF Comparison
| Feature | JPG | AVIF |
|---|---|---|
| Full Name | Joint Photographic Experts Group | AV1 Image File Format |
| Lossy Compression | ✅ | ✅ |
| Lossless Compression | ❌ | ✅ |
| Transparency | ❌ | ✅ |
| Animation | ❌ | ✅ |
| Browser Support | All browsers, all devices | Chrome 85+, Firefox 93+, Safari 16.4+ |
| Color Depth | 16.7M (24-bit) | 16.7M+ (up to 12-bit HDR) |
| Typical Use | Photos, web images, email attachments | Next-gen web images (even smaller than WEBP) |
| Year Introduced | 1992 | 2019 |
Why Convert JPG to AVIF?
AVIF uses the AV1 video codec for still images, achieving compression ratios that JPG’s 30-year-old algorithm cannot match. A 500 KB JPG often becomes a 200 KB AVIF with no visible difference. Google, Netflix, and other major platforms have adopted AVIF for its superior compression-to-quality ratio.
How to Convert JPG to AVIF
Upload your JPG file by dragging it into the converter or clicking to browse. Files up to 50 MB are supported.
KoalaPic encodes your image to AVIF using optimized AV1 compression. Default quality is 80%, which balances file size and visual fidelity.
Download the smaller AVIF file. Both the original JPG and converted AVIF are automatically deleted after 1 hour.
Quality Note
JPG to AVIF is a lossy-to-lossy conversion. At quality 75-80, the AVIF output is visually indistinguishable from the JPG source while being 30-50% smaller. For the best results, use KoalaPic’s smart quality mode, which uses SSIM analysis to find the optimal quality level.