PNG to AVIF Converter

Converting PNG to AVIF offers several compelling advantages. AVIF typically achieves 50–70% smaller file sizes than PNG, which means faster page loads and less bandwidth usage. AVIF uses modern compression (based on the AV1 video codec) that maintains high visual quality even at low file sizes. Smaller images also improve Core Web Vitals scores and overall site performance. AVIF supports wide color gamut and high dynamic range, making it ideal for high-quality photography. Like PNG, AVIF supports alpha transparency, so you don’t lose that capability when converting. You can also choose between lossless conversion (like PNG) or lossy for even greater size savings.

A PNG to AVIF converter is a tool — web-based, desktop software, or command-line utility — that transforms PNG image files into the AVIF format. These tools handle the encoding process, which can be computationally intensive. Examples include online tools like Squoosh, Convertio, or CloudConvert, command-line tools like ffmpeg or avifenc, and libraries like Sharp (Node.js) or Pillow with AVIF support (Python). They typically let you control quality settings and whether to use lossy or lossless compression.

Yes — the converter processes files entirely in your browser, so there’s no server-side file size restriction. Performance depends on your device and the output resolution: very large image files scaled up significantly will require more memory and processing time, but typical icon, illustration, and logo files convert in seconds.

AVIF (AV1 Image File Format) is a modern image format based on the AV1 video codec, developed by the Alliance for Open Media. It offers superior compression efficiency compared to older formats, meaning smaller file sizes at the same or better visual quality. AVIF supports wide color gamut, HDR (High Dynamic Range), transparency (alpha channel), and even animated images.

Completely. It’s a single HTML file that runs entirely in your browser with no account, no backend, no telemetry, and no cost.

PNG (Portable Network Graphics) is a lossless raster image format created in the mid-1990s as an open alternative to GIF. It uses lossless compression, meaning no quality is lost when saving and every pixel is preserved exactly. It supports full 8-bit alpha transparency, unlike JPEG, making it popular for logos, icons, and UI elements. PNG is supported by virtually every browser, OS, and image editor. Because it is lossless, PNG files tend to be larger than formats like JPEG or AVIF. It is best used for screenshots, graphics with text, illustrations, images requiring transparency, and any scenario where pixel-perfect accuracy matters. PNG remains a go-to format for quality-critical work, but its larger file sizes make it less ideal for web delivery, which is where converting to AVIF shines.