formatsprout.
THE EVERYDAY IMAGE CONVERTER

AVIF to WebP. Image converter

Convert AVIF images to WebP for publishing systems and image workflows that accept WebP but not AVIF.

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.

AVIF · 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.

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.

WebP output may be larger than AVIF and is re-encoded with lossy compression. Conversion is most useful for compatibility.

Useful for

  • Import AVIF downloads into a WebP publishing workflow
  • Create resized website thumbnails
  • Share transparent images with WebP-compatible tools

Transparent backgrounds

WebP supports transparent pixels, so you do not need to flatten the image onto white as you would for JPG.

Getting the quality right

Compare fine details at 85–95% and keep the original AVIF. Lower the quality only after checking the 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.

WebP 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
JPGWebP

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

PNGWebP

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

HEICWebP

Give your iPhone photos a format everyone can open.

WebPAVIF

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

AVIFJPG

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

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
Will converting to WebP improve AVIF quality?

No. It creates a compatible delivery copy and cannot restore lost detail.

Does the output keep animation?

No. FormatSprout produces a single still image, even if the source contains multiple frames.

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