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convertexa

PNG → AVIF

PNG to AVIF converter

convertexa converts PNG files to AVIF locally in your browser using a dedicated image-canvas engine. Nothing is uploaded: the file is read, converted and handed straight back to you as a download.

  • Free, no sign-up
  • Nothing is uploaded
  • Works offline
Quality
Re-encoded
Runs
In your browser
Max input
40 MB
Status
stable

Drop a file to convert

Everything happens on your device — nothing is uploaded.

or paste with Ctrl+V

How to convert PNG to AVIF

  1. 1 Drop your PNG file here.
  2. 2 Choose AVIF as the output format and adjust the options.
  3. 3 Convert and download the result.

About PNG and AVIF

PNG output is lossless and keeps the alpha channel intact.

AVIF gives the smallest files but encoding is slower than WebP or JPEG.

PNG files are read by the convertexa engine that ships with this page, so the conversion is identical whether you use this tool or the general converter. The output is produced with the same codec settings for every visitor, which means the same input always produces the same result.

Limitations

  • AVIF encoding is noticeably slower than JPEG or WebP.

Frequently asked questions

How do I convert a PNG file to AVIF?

Add your PNG file to the box above. convertexa detects the format from the file content, applies the PNG to AVIF conversion and gives you the result to download. The whole operation runs inside your browser.

Are my PNG files uploaded anywhere?

No. The conversion runs in a sandboxed worker on your own device. Your file never leaves the browser, and nothing is stored on a server.

Is the PNG to AVIF conversion lossless?

No. AVIF is a re-encoded format, so some data is discarded to reach the target format. PNG output is lossless and keeps the alpha channel intact.

Is there a size limit?

For reliable results keep the input under 40 MB. Very large files run out of memory in the browser rather than failing quietly.

Which browsers are supported?

Any current version of Chrome, Edge, Firefox or Safari on a desktop. The conversion engines need WebAssembly and Web Workers, both of which are standard since 2018.