PNG to AVIF Converter
Convert PNG images to AVIF format - the next-generation image format with highest compression (50-90% smaller than PNG). Perfect transparency support. Based on Google Squoosh. Upload up to 100 files (max 100 MB each).
Drop PNG images here or click to browse
Maximum 100 files • 100 MB per file • 0/100 uploaded
About PNG to AVIF Conversion
This tool converts PNG images to AVIF format - the next-generation image format using WebAssembly. AVIF provides the highest compression ratio (50-90% smaller than PNG) while maintaining excellent quality. Based on Google Squoosh technology. All processing happens locally in your browser for maximum privacy and security.
Features:
- • Upload up to 100 PNG images at once
- • Maximum 100 MB per file
- • AVIF encoder based on Google Squoosh
- • 50-90% smaller than PNG files
- • 20-30% smaller than WebP files
- • Adjustable quality (0-100, default 75)
- • Encoding speed control (0-10)
- • Full transparency support
- • Thumbnail preview for each image
- • Individual or batch download (ZIP)
- • Real-time conversion statistics
- • Conversion time tracking
AVIF Advantages:
- • 50-90% smaller than PNG with excellent quality
- • 20-30% smaller than WebP at same quality
- • Highest compression efficiency of any format
- • Full support for transparency (alpha channel)
- • Supports HDR and wide color gamut
- • Next-generation format for modern web
- • Based on AV1 video codec
- • Optimal for web performance and page speed
Quality Guidelines:
- • 85-95: Excellent quality, near-lossless
- • 75-85: Very good quality, recommended for most use cases (default: 75)
- • 60-75: Good quality, smaller files
- • Below 60: Lower quality, smallest files
- • AVIF at quality 75 looks better than JPEG at quality 85
Transparency Support:
- • AVIF fully supports PNG-style transparency
- • Alpha channel preserved perfectly
- • Automatic detection of transparent pixels
- • Smaller than PNG with transparency
- • No quality loss for transparent regions
Encoding Speed Guide:
- • 0-2 (Fast): Quick conversion, good quality
- • 3-5 (Balanced): Good balance (recommended, default 4)
- • 6-8 (High Quality): Better compression, slower
- • 9-10 (Maximum): Best compression, significantly slower
- • Higher values = slower conversion but smaller files
Browser Support:
- • Chrome 85+ (2020)
- • Firefox 93+ (2021)
- • Safari 16+ (2022)
- • Edge 85+ (2020)
- • Mobile: Chrome for Android, Safari for iOS 16+
- • Over 85% of global browsers support AVIF
When to Use AVIF:
- • Modern websites targeting latest browsers
- • High-quality images needing smallest file size
- • Web performance optimization
- • Mobile-first applications
- • Images with transparency
- • Progressive web apps (PWAs)
Technical Details:
- • Uses jSquash library based on Google Squoosh
- • Single-thread WASM build for Next.js compatibility
- • WASM encoder ~1.4MB, cached after first load
- • High-quality PNG decoder from Rust PNG crate
- • AV1 Image File Format (based on AV1 video codec)
- • All processing happens client-side (no server upload)
Privacy: All image conversion happens in your browser using WebAssembly (Google Squoosh technology). Your images are never uploaded to any server. WASM modules (~2MB) are downloaded once and cached. Everything is processed locally for maximum security and privacy.
Note: AVIF encoding is more CPU-intensive than WebP or JPEG. Higher speed settings (6-10) can significantly increase conversion time. For large batches, consider using speed 3-5 for good balance between speed and compression.