Convert JPG to AVIF Online Free
Upload your JPG photos and get smaller, higher-quality AVIF files instantly — no upload to any server, no registration, 100% private.
Drop image files here
Or click to browse. Max 30 files per batch. Max 10MB per file.
100% Client-side SecureHow to Convert JPG to AVIF
Upload JPG Files
Drag and drop your .jpg or .jpeg files into the converter box, or click to browse. Upload up to 30 JPG files at once for batch conversion to AVIF.
Set AVIF Quality
Adjust the quality slider for AVIF output. For web images, 60–75% quality provides excellent results with dramatic file size savings. Higher quality (80%+) for photography where detail matters.
Download AVIF Files
Download each AVIF file individually or save all as a ZIP archive. AVIF files are ready for modern websites, apps, and storage optimization.
Why Convert JPG to AVIF?
Upgrade to a more efficient image format — smaller files, same quality.
Complete Privacy
Your JPG photos are converted to AVIF entirely inside your browser. No images are uploaded to any server — your files never leave your device.
Instant Conversion
Zero upload time. Your photos convert directly in your browser the moment you click — no waiting for server responses.
Superior Compression
AVIF achieves 30–50% smaller file sizes than JPG at the same visual quality, making it ideal for web performance and storage savings.
See the Savings: JPG vs AVIF
AVIF delivers dramatically smaller file sizes compared to JPG while maintaining visual quality. See how much space you can save.
Drag the slider to compare image quality
When Should You Convert JPG to AVIF?
Website Modernization
Replace JPG images with AVIF on your website to reduce page load times by 30–50%. Improve Core Web Vitals scores and SEO rankings with smaller image files.
Storage Optimization
Convert your JPG photo library to AVIF to reclaim storage space. A 10 MB JPG collection can shrink to 5–7 MB in AVIF with identical visual quality.
App Development
Use AVIF in mobile and web apps for faster loading and lower bandwidth usage. Modern browsers and platforms increasingly support AVIF natively.
Photo Archives
Convert large JPG archives to AVIF for long-term storage savings. AVIF's superior compression means the same photos take up significantly less disk space.
JPG vs AVIF – Why Upgrade?
See how AVIF improves upon the classic JPG format.
| Feature | JPG | AVIF |
|---|---|---|
| Compression | Good (DCT-based) | Superior (AV1-based) |
| File Size | Baseline | 30–50% smaller |
| Visual Quality | Good | Better at same size |
| Transparency | Not supported | Full alpha channel |
| HDR Support | No (8-bit only) | Yes (10-bit, 12-bit) |
| Browser Support | Universal | Chrome 85+, Safari 16.4+ |
| Encoding Speed | Fast | Moderate |
| Animation | No | Yes (AVIF sequence) |
Tool Specifications
Frequently Asked Questions
AVIF files are typically 30–50% smaller than JPG at the same visual quality. A 1 MB JPG photo might become 500–700 KB in AVIF with no perceptible quality difference.
At recommended quality settings (60–80%), the visual difference is imperceptible to the human eye. AVIF's advanced compression preserves detail better than JPG at equivalent file sizes.
Yes. Avifkit processes everything client-side — your images are converted directly in your browser and are never uploaded to any external server. Your files stay on your device at all times.
Chrome 85+, Firefox 93+, Opera 71+, Edge 121+, and Safari 16.4+ all support AVIF. This covers approximately 93% of global browser usage.
Yes! Use the HTML 'picture' element to serve AVIF with a JPG fallback for older browsers, so all visitors get the best format their browser supports.
Each file can be up to 10 MB. There are no watermarks, no registration required, and no daily usage caps.
Yes! Upload up to 30 JPG files at once. Click Convert All, then download individually or as a ZIP archive.
For web images, 60–75% quality provides excellent results with dramatic size savings. For photography, use 75–85%. For near-lossless quality, use 90%+.
No. Avifkit is completely free with no registration, no watermarks, and no usage limits.
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Avifkit.com is a free online file converter that allows you to convert media easy and fast from one format to another. We support many different source formats like AVIF, WEBP, HEIC, and output formats like JPG, PNG.