Convert PNG to AVIF Online Free
Shrink your PNG images by converting to AVIF — the next-generation image format that delivers up to 50% smaller files than PNG at similar visual quality.
To convert PNG to AVIF, drop your PNG file into the converter above. ChangeThisFile re-encodes the image as AVIF directly in your browser using the Canvas API. The conversion is instant and your files never leave your device. AVIF produces dramatically smaller files than PNG.
Convert PNG to AVIF
Drop your PNG file here to convert it instantly
Drag & drop your .png file here, or click to browse
Convert to AVIF instantly
PNG vs AVIF: Format Comparison
Key differences between the two formats
| Feature | PNG | AVIF |
|---|---|---|
| Compression | Lossless (deflate) | AV1-based lossy/lossless |
| File size | Large for photos | 50-80% smaller than PNG |
| Transparency | Yes (alpha channel) | Yes (alpha channel) |
| Color depth | Up to 48-bit | Up to 12-bit HDR |
| Animation | No (use APNG) | Yes |
| Browser support | Universal | Chrome 85+, Firefox 93+, Safari 16.4+ |
| Best for | Graphics, screenshots, lossless | Modern web delivery, small files |
When to Convert
Common scenarios where this conversion is useful
Optimizing website images
AVIF typically reduces PNG file sizes by 50-80%, dramatically improving page load speed. Serve AVIF to modern browsers for the best performance scores.
Saving storage and bandwidth
Large PNG image libraries eat storage fast. Convert to AVIF to reclaim disk space while retaining transparency support and high visual quality.
Progressive web apps
PWAs need to minimize asset size for offline caching. AVIF delivers the smallest file sizes of any widely-supported image format, keeping your app's cache footprint small.
Responsive image pipelines
Generate AVIF versions alongside PNG/WebP for picture elements. Modern browsers get the smallest file while older browsers fall back gracefully.
How to Convert PNG to AVIF
-
1
Drop your PNG file
Drag and drop your PNG image into the converter area, or click browse to select it from your device.
-
2
Instant browser conversion
Your browser decodes the PNG and re-encodes it as AVIF using the Canvas API. No server upload, no waiting — conversion happens locally.
-
3
Download the smaller AVIF
Save the converted AVIF file. You'll typically see a 50-80% reduction in file size compared to the original PNG.
Frequently Asked Questions
For photographs, expect a 50-80% reduction in file size. For graphics and screenshots with flat colors, savings are typically 30-60%. The exact reduction depends on image complexity.
Yes. Unlike JPG, AVIF fully supports alpha channel transparency. Your transparent PNGs will retain their transparency when converted to AVIF.
Chrome 85+, Firefox 93+, Safari 16.4+, and Edge 121+ all support AVIF. For older browsers, consider using WebP as a fallback or serving PNG to unsupported clients.
AVIF can encode in both lossy and lossless modes. The browser's default encoding produces high-quality results that are visually indistinguishable from the source for most photographs. Graphics with sharp edges may show subtle differences.
Yes. The entire conversion happens in your browser using JavaScript and the Canvas API. Your PNG files are never uploaded to any server — they stay on your device.
AVIF generally produces 20-30% smaller files than WebP at the same visual quality. It also supports wider color gamuts and HDR. However, WebP has broader browser support, so many sites serve both.
Yes. Drop multiple PNG files into the converter and they'll all be processed simultaneously in your browser. Each file is converted independently.
No. The AVIF output has exactly the same pixel dimensions as your original PNG. Only the file format and compression method change.
Yes, if your mobile browser supports AVIF encoding. Chrome and Safari on iOS 16.4+ can handle PNG to AVIF conversion directly on your phone.
AVIF is ideal for photos and complex images on modern websites. For simple icons or logos with few colors, SVG or PNG may still be better choices. Use the HTML picture element to serve AVIF with PNG/WebP fallbacks.
Related Conversions
Ready to convert your file?
Convert PNG to AVIF instantly — free, no signup required.
Start Converting