formatsprout.
THE EVERYDAY IMAGE CONVERTER

PNG to AVIF. Image converter

Convert PNG graphics to AVIF with transparency and adjustable compression for web publishing.

Free to use No signup No uploads
01 — Image workspace All processing stays local

Drop your images here

Or browse your files. A whole batch is welcome.

PNG · Up to 20 filesYou can also paste an image from your clipboard.
THE FINISHING TOUCHES

Make it your own.

Resize (optional)

Proportions locked. Height adjusts automatically.

AVIF can take longer, especially for large images on phones. Your original files stay unchanged.

No uploads. No watermarks.50 MB per file · 40 megapixels max

Your files stay on your device. Always.JPG · PNG · WebP · HEIC · AVIF
BEFORE YOU CONVERT

A few things to know.

This AVIF export uses lossy compression. Sharp text and flat-color edges can change; retain PNG when exact rendered pixels matter.

Useful for

  • Reduce large photographic PNGs
  • Test AVIF for transparent illustrations
  • Prepare smaller images for a website

Transparent backgrounds

Alpha is supported, but low quality can affect translucent edges. Check your result on light and dark backgrounds.

Getting the quality right

Use a high quality setting for graphics and inspect text. A 100% quality setting is not a guarantee of lossless AVIF output.

LESS FUSS. MORE DONE.

From “wrong format” to ready.

01 /

Bring your images.

Drop up to 20 files, browse your device, or paste from your clipboard. They stay right here.

02 /

Make them fit.

AVIF is already selected. Adjust the quality or dimensions if you need to.

03 /

Take them with you.

Hit convert and save your new images. Download one at a time or grab the whole batch as a ZIP.

A LITTLE TOOL. A SMALLER FOOTPRINT.

Your photos are
your business.

Family photos, work screenshots, half-finished ideas. You shouldn’t have to upload them just to change a file format.

FormatSprout does the conversion inside your browser. Your images and filenames never reach our servers.

How local conversion works
FIND YOUR FORMAT

Another format in mind?

Explore all formats
PNGJPG

A familiar format for attachments, apps, and upload forms.

PNGWebP

Lighter images for your next website, post, or project.

HEICAVIF

Give your iPhone photos a format everyone can open.

JPGAVIF

Lighter images for your next website, post, or project.

WebPAVIF

Lighter images for your next website, post, or project.

AVIFPNG

Keep transparent backgrounds. Get an editing-friendly file.

THE SMALL PRINT, MADE READABLE

Good questions.

A few things you might be wondering.

Read our privacy policy
Is PNG to AVIF lossless?

Not in this converter. The quality slider controls a lossy AVIF encoder; keep PNG when you need a lossless editing copy.

Why is AVIF useful for photographic PNGs?

PNG may store photos inefficiently. AVIF can reduce delivery size, but the actual savings depend on the image, dimensions, and quality.

Are my images uploaded?

No. FormatSprout converts images locally in your browser. Your files never reach our servers.

Is FormatSprout free?

Yes. There is no account, watermark, daily quota, or payment required.

Right format. On with your day.

Convert an image