image / file

PNG to AVIF Converter

Shrink PNG assets into AVIF for modern delivery while keeping transparency where supported.

Use PNG to AVIF for next-gen delivery, but keep the PNG source if you still need the most portable editable master.

Input
png
Output
avif
Speed
Usually under a minute
Best for
UI asset delivery • performance optimization
Convert your file

Upload PNG

Supported input: png. Max file size: 100 MB.

File availability

Downloads stay available for 1 day on your current access level.

Ready files get a temporary download link that you can open or share.

Convert multiple files

Convert multiple files

If you repeat the same format change often, you can prepare a batch and process several files together.

Batch conversion is available on the Pro plan. Sign in to upload up to 25 files at once for this converter.

After upload, SwapMyFile checks the file, runs the conversion, and prepares a temporary download link.

Step by step

How to use this converter

  1. 1

    Choose a PNG file

    Start with a supported PNG source and check that the file is the version you want to convert.

  2. 2

    Review the format notes

    PNG to AVIF Converter explains what is preserved, what can change, and which settings matter before upload.

  3. 3

    Upload PNG

    Upload the source file, run the conversion, and download the finished AVIF result from the temporary link.

  4. 4

    Keep the original

    Save your original PNG file until you have checked that the AVIF output fits the next app or publishing flow.

Expected output

You receive a AVIF file that matches the stated converter limits. A strong fit for UI assets, illustrations, and screenshots when size matters and the destination accepts AVIF.

Before you convert

Common issues to check

  • - older apps may still reject AVIF
  • - encoding can be slower than WEBP output
  • - fine edge detail if quality is too aggressive
  • - some metadata

Not ideal for

  • - older apps may still reject AVIF
  • - encoding can be slower than WEBP output
  • - fine edge detail if quality is too aggressive
  • - some metadata

Before you start

You should know the result and the limits before the upload begins.

Automatic file cleanup
Clear format and size limits
Temporary download links
No signup for basic use

What stays

  • - dimensions
  • - transparency in supported modes

What may change

  • - fine edge detail if quality is too aggressive
  • - some metadata

Known limitations

  • - older apps may still reject AVIF
  • - encoding can be slower than WEBP output

Typical use cases

  • - UI asset delivery
  • - performance optimization
  • - modern image pipelines

Available options

  • - quality
  • - effort
  • - strip metadata

FAQ

What happens during PNG to AVIF conversion?

The converter re-encodes the PNG source as AVIF so you can ship a smaller next-generation image when the destination supports it.

Are uploaded files kept permanently?

No. Files are kept only for a short time and downloads are served through temporary links.

Can quality or formatting change?

Yes. Each converter page calls out what is preserved, what may be lost, and which settings matter before upload.