PNG to AVIF Converter
PNG to AVIF: the most compact image, with transparency kept. First frame or all frames in a ZIP, adjustable quality. Files are not uploaded to a server.
AVIF gives the lightest file at good quality but takes longer to encode. The codec is downloaded the first time.
PNG becomes AVIF with transparency kept. The format gives very light files for websites and apps: photos and illustrations take several times less space. Encoding is slower than for WebP, but the result is more compact.
PNG stores an image without loss and supports full transparency, so it suits screenshots, logos and graphics. PNG also has an animated variant, APNG, which holds several frames, and this page can read them.
AVIF is a next-generation format: at the same quality the file is noticeably lighter than JPG and WebP, and transparency is supported. The price is encoding time and compatibility: modern browsers open AVIF, but not all programs do.
For AVIF you set the quality from 1 to 100 and the encoding speed: the slower it is, the slightly lighter the file. A small codec is downloaded on first use. Transparency is kept by default, but you can fill it with a color. PNG can be animated but AVIF cannot store animation: the first frame is taken or all frames are saved as separate pictures in one ZIP. The size in pixels can stay as it is or be changed by width, by height or in percent. Results download one by one or all at once as a ZIP, with random or original names.
Converting PNG to AVIF happens in your browser: files are not uploaded to a server, so it is fast and safe. You can drag several files in, pick them in a file window or paste from the clipboard with Ctrl+V. To encode AVIF a small codec is downloaded on first use, so an internet connection is needed, but the picture itself is never sent anywhere.