PNG to AVIF Converter
Convert PNG images to AVIF, for free. Files are processed in your browser and never uploaded.
Conversion Results
How to convert PNG to AVIF
PNG keeps every pixel, which makes it large. Converting to AVIF trades a small amount of detail for a much smaller file, which is usually the right choice for photographs and anything going on a website.
- Click the Choose Files button and select your PNG files.
- AVIF is already selected as the output. Click the gear if you want to adjust quality or resize.
- Click Convert, then hit Download to save your AVIF files, or grab them all as a ZIP.
Built for PNG files
Drop in as many PNG images as you like and they all come out as AVIF. You can also change the output on any individual file if you need a mixed batch.
Keep the quality
Adjust quality per file and resize on the way through. Formats without transparency get a clean white matte instead of the black edges most converters leave behind.
Nothing is uploaded
Your files are read and written by your own browser. They are never sent to a server, so there is nothing to delete afterwards and no size or file-count limit.
More image tools
Three separate tools, all running the same way — entirely inside your browser, with nothing uploaded.
The compressor is the one to use when you want a smaller file without changing its format — it can hit an exact target file size, which the converter cannot. The resizer handles exact dimensions and ready-made presets for Instagram and YouTube, including common sizes like 1920×1080 and 1080×1080.
A few things are built into this converter and need no separate tool:
- Compress without converting — pick the same format as your input and lower the quality slider to shrink a file while keeping its type.
- Resize — open the gear on any file and set a maximum width; the height follows automatically.
- Images to PDF — choose PDF as the output to turn a photo or scan into a document.
- Make a favicon — choose ICO as the output to produce a browser icon from any square image.
What is a PNG file?
PNG stands for Portable Network Graphics. PNG is a lossless format, which means every pixel is preserved exactly as it was. It also supports transparency, so it is the usual choice for logos, icons, screenshots and any graphic with sharp edges or text.
Because nothing is thrown away, PNG files of photographs are often several times larger than the same image as JPG or WebP.
What is a AVIF file?
AVIF stands for AV1 Image File Format. AVIF is the newest of the mainstream web formats. It generally produces the smallest file of any of them at a given quality, supports transparency, and handles gradients and flat colour especially well.
Support outside browsers is still patchy, and not every browser can create AVIF files even though nearly all can display them.
PNG to AVIF: the smallest option, at a cost in time
AVIF compresses harder than anything else in common use — frequently half the size of a comparable WebP and a fraction of the original PNG — while still supporting transparency and higher bit depths. For a site where image weight genuinely matters, it is the strongest option available.
The trade-off is encoding speed. AVIF is computationally expensive to produce, and because this tool encodes inside your browser rather than on a server, a large image can take several seconds and will make a slower laptop work for it. Support is solid in current Chrome, Firefox and Safari 16 and up, but older devices and non-browser software will not open the file.
Converters by format
Every conversion into a single format, on one page:
Convert images to other file types
Jump straight to the conversion you need:
Frequently asked questions
Why is AVIF conversion slower than the other formats?
AVIF uses a far more demanding compression algorithm than PNG or JPG, and the encoder runs on your own machine rather than a server. The wait buys you a considerably smaller file. Large images on older hardware will take the longest.
Does converting PNG to AVIF reduce quality?
Slightly, by design. AVIF uses lossy compression to make the file smaller. At the default quality of 85 the difference is invisible on most images. Raise the quality slider if you are working with fine detail, text or flat colour.
Is there a limit on file size or how many files I can convert?
No. Conversion runs inside your browser rather than on a server, so there is no upload, no queue and no cap. Very large images may simply take a moment on a slower device.
Are my PNG files uploaded anywhere?
No. Your files are read and written by your own browser and never leave your device. You can disconnect from the internet once the page has loaded and the converter will still work.