Convert PNG to AVIF — Free, Fast & Private
PNG files are lossless but large. A single screenshot or graphic can easily be 2-5MB. AVIF uses the AV1 codec to compress images dramatically — typical PNG to AVIF conversions reduce file size by 70-90% while maintaining excellent visual quality.
AVIF supports transparency (alpha channel), wide color gamut, and HDR — features that make it a true successor to PNG for web use. If you are optimizing website images, switching from PNG to AVIF can cut page load times significantly.
MiniPx converts your PNGs to AVIF entirely in-browser using the Canvas API. No files are uploaded to any server. This keeps your images private and the conversion instant — no waiting for server processing or download queues.
AVIF browser support
AVIF is supported in Chrome, Firefox, Edge, Opera, and Safari 16.4+. For web use, this covers over 95% of users globally. If you need universal compatibility, consider PNG to WebP as WebP has slightly broader support in older browsers.
Quality vs file size
MiniPx offers three compression levels. Gentle preserves the most detail — best for graphics with text or fine lines. Smart balances quality and size — good for most images. Tiny pushes compression harder for minimum file size — best for thumbnails and web backgrounds where some quality loss is acceptable.
When to keep PNG instead
Keep PNG when you need pixel-perfect lossless quality for editing, when your target application does not support AVIF, or when you are archiving originals. For everything else — web publishing, social media, email attachments — AVIF gives you dramatically smaller files. Read more about AVIF in our AVIF format explained guide.