Convert AVIF images to lossless PNG instantly — full transparency preserved. 100% in your browser, no uploads, complete privacy.
AVIF (AV1 Image File Format) is derived from the AV1 video codec. It offers 20–50% better compression than JPEG at equivalent quality and supports full transparency (alpha channel), HDR, and wide color gamut — features that make it ideal for modern web delivery.
PNG's key advantage over JPG is full alpha channel support — each pixel can have its own opacity level (0–255). When converting from AVIF (which also supports alpha), PNG faithfully retains all transparency data, making it the format of choice for logos, icons and UI assets.
The browser decodes the AVIF into a raw bitmap. This tool draws it onto an HTML5 Canvas element — preserving the alpha channel when "Preserve transparency" is enabled — then exports it as PNG via canvas.toBlob('image/png'), which is always lossless.
PNG files are typically larger than JPEG because PNG uses lossless compression. A photographic AVIF converted to PNG may be 3–5× larger. For photos without transparency needs, JPG conversion is preferable; use PNG when preserving sharp edges, transparency, or pixel-perfect detail matters.