Shrink PNG images dramatically by converting them to AVIF. It is converted in your browser, so the file never leaves your device.
Drop PNG files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop PNG files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab.
Save the AVIF, or download everything as one ZIP if you converted several files.
The PNG to AVIF converter is part of this page and runs inside your browser. Your images are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
For photographic PNGs the saving from AVIF is often 90 percent or more, with transparency preserved. Flat graphics and screenshots shrink less. AVIF is supported by current browsers but not by many desktop apps, so keep the PNG as your master copy.
The defaults suit most files. Under Options you can set the quality, aim for a target file size and resize the result.
The AVIF encoder is a WebAssembly module that downloads the first time you convert to AVIF and is cached afterwards.
PNG stores every pixel exactly, with optional transparency. It was created as a patent-free replacement for GIF and is the standard for screenshots, logos and interface graphics. Photos saved as PNG are several times larger than the same photo as JPG.
Opens in Every browser, phone and image app
PNG converterAVIF stores a still image using the AV1 video codec. It usually beats both JPG and WebP on file size and supports transparency, HDR and wide colour. Current browsers display it, but many image editors, viewers and upload forms still do not.
Opens in Chrome, Firefox, Edge and Safari 16 or later; few desktop apps
AVIF converter| PNGPNG image | AVIFAVIF image | |
|---|---|---|
| Stands for | Portable Network Graphics | AV1 Image File Format |
| Type | Raster image | Raster image |
| Compression | Lossless | Lossy or lossless (AV1) |
| Transparency | Yes, full alpha channel | Yes |
| Animation | No (the APNG extension aside) | Yes |
| Introduced | 1996, by the PNG Development Group | 2019, by the Alliance for Open Media |
| Opens in | Every browser, phone and image app | Chrome, Firefox, Edge and Safari 16 or later; few desktop apps |
| Best for | Screenshots, logos, graphics with text or transparency | The smallest images for websites |
| File extension | .png | .avif |
No. The PNG to AVIF conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
A little: ToAny writes AVIF in its lossy mode, so a small amount of detail is traded for a much smaller file. At the default setting the difference is hard to notice. You can raise the quality under Options; there is no lossless setting.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the PNG file, press Convert and save the AVIF. There is nothing to install.
Pictures of up to 120 megapixels are accepted (for example 12,000 by 10,000 pixels); a larger one is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.