Convert PNG to AVIF Online - Free, Local & Instant
Convert PNG (image/png) to Next-Gen AVIF (.avif) locally in your browser using HTML5 Canvas. Adjust compression quality, resize in pixels, and download instantly with zero server uploads.
Technical Comparison: PNG vs AVIF
Images & Game/Web Assets| Specification | PNG (Source) | AVIF (Target) |
|---|---|---|
| Format Name | Portable Network Graphics | Next-Gen AVIF |
| MIME Type | image/png | image/avif |
| Transparency / Alpha | Yes (full RGBA transparency) | Preserved for PNG, WEBP, AVIF, ICO, SVG, BMP |
| Compression Profile | Lossless DEFLATE | cutting-edge AV1 image compression for Core Web Vitals optimization |
| Processing Engine | Native Browser Image Decoder | HTML5 Canvas + Client-Side Binary Encoder |
PNG to AVIF — Before & After Example
Input File: asset.png MIME Type: image/png Alpha: Yes (full RGBA transparency) Compression: Lossless DEFLATE Decoding: Browser HTML5 Image + Canvas 2D Context
Output File: converted.avif MIME Type: image/avif Pipeline: High-quality bicubic Canvas resampling -> Blob download Best For: cutting-edge AV1 image compression for Core Web Vitals optimization
Frequently Asked Questions: PNG to AVIF
Does converting PNG to AVIF upload my images to a remote server? ▾
Never. Every PNG file you select is decoded directly in your browser using the HTML5 Canvas API and FileReader API. Your images stay in your computer or phone RAM at all times.
Can I resize and adjust compression quality when converting PNG to AVIF? ▾
Yes. Use the Quality slider (10%–100%) and the Width/Height pixel inputs above the drop zone. Keeping "Lock Ratio" checked preserves your original aspect ratio automatically.
Does this converter support batch PNG to AVIF conversion with ZIP download? ▾
Yes. Drag and drop multiple PNG files at once; you can download each converted AVIF individually or click "Download All (.ZIP)" to bundle them locally via JSZip.
Why use AVIF instead of PNG? ▾
Converting PNG to AVIF gives you cutting-edge AV1 image compression for Core Web Vitals optimization while keeping full control over pixel dimensions and byte size.