PNG to AVIF Converter — Browser Image Format Tool

Image

The PNG to AVIF converter decodes a PNG image in the browser, redraws it on Canvas, and encodes it as a AVIF file.

PNG to AVIF Converter

Local processingUnsupported formats or browser encoders are shown as clear errors.

Runs in your browser

Selected files and input are not uploaded to a server. Preview, conversion, hashing, and download file creation run in this browser session.

Supported input: PNG image
Output: AVIF image
Max file size: 25.00 MB
Max pixels: 32,000,000 px

Choose a PNG image

Quality

What is it

PNG to AVIF conversion is useful when preparing phone photos, web-optimized images, or app upload assets. HEIC/HEIF uses a dynamically loaded browser codec, while AVIF/WebP/JPG/PNG use Canvas encoding. AVIF output can change size and sharpness depending on the quality setting.

AVIF blob = canvas.toBlob(PNG bitmap)

How to use

1Choose a PNG image file.
2Adjust the quality value.
3Press Convert to AVIF.
4Check the preview and file size, then download the result.

Reference

PNG to AVIF Converter — Browser Image Format Tool Reference
Item	Value
Input format	PNG
Output format	AVIF
Processing location	Browser
File limit	25MB or smaller recommended

Sources & standards

MDN Web Docs: Client-side web APIs - MDN Web Docs

FAQ

Is the PNG file uploaded to a server?

No. File selection, decoding, conversion, and output file creation happen in the browser.

Does the AVIF output keep original metadata?

No. The output is redrawn through Canvas, so metadata such as EXIF is not preserved.

Can browser conversion fail?

Yes. An error is shown when the browser cannot encode the target format or when the image is too large.