Convert Multiple AVIF Files to WebP at Once

Batch-convert AVIF files to WebP in your browser. Keeps transparency, keeps files small, and hands back one ZIP — no uploads and no signup.

This is the conversion to make when you want small files but wider support. WebP has been in every major browser for years, while AVIF is still the one that occasionally lands on a device that cannot open it. The files stay close in size, so you give up very little.

It is also the sensible fallback when a CMS, theme or plugin accepts WebP but rejects AVIF uploads — a gap that catches a lot of people mid-migration.

Bulk Image Pro can convert AVIF to JPG, AVIF to PNG, and AVIF to WebP.

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How to Convert AVIF to WebP in Bulk

Three steps, no account, and nothing uploaded anywhere:

Step 1: Add Your AVIF Files

- Drag up to 50 AVIF files into the upload box.
- Or click "Select Files" and pick them from your computer.

🔎 Pro Tip: Select the whole folder at once — the converter queues every file and works through them in order.

Step 2: Hit Convert

Each AVIF is decoded and re-encoded as a WebP at quality 92, transparency included. There are no settings to wade through.

Step 3: Download the ZIP

Your WebP files arrive as one ZIP in your Downloads folder, with the original filenames intact.

🌟 Why Convert AVIF to WebP Here?

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Frequently Asked Questions

Is WebP noticeably worse than AVIF?

At typical web quality the difference is small — AVIF is usually 10–20% smaller at a similar look. You are trading a little size for support on anything that cannot read AVIF yet.

Does transparency survive the conversion?

Yes. WebP supports an alpha channel, so transparent areas come through intact.

What about animated AVIF files?

Only the first frame is converted. The output is a still WebP, not an animation.

Do my images get uploaded anywhere?

No. Both the decode and the encode run in your browser, so nothing leaves your machine.