buncha/image/avif-to-webp

AVIF to WebP

AVIF to WebP Converter

Got an AVIF that won't go where you need it? Convert to WebP, which is supported by virtually every modern tool while still giving you a much smaller file than JPG or PNG.

Bulk Image Converter

Convert images between JPG, PNG, WebP, AVIF, BMP, and HEIC. Up to 100 files at once. All processing happens in your browser — your files are never uploaded.

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Drop images here or click to select

Files are processed in your browser. Nothing uploaded.

Need more than a format change?

Open the result in the buncha editor

Crop & resize Filter, curves, HSL Watermark AI bg remove, magic erase

Why convert AVIF to WebP?

AVIF is the most efficient mainstream image format, but support outside browsers is still uneven. Some CMSes, asset pipelines, older image CDNs and corporate imaging tools accept WebP but gag on AVIF. Converting drops the file size by maybe 20-30% over the AVIF source — but landed-everywhere reliability beats absolute byte-count for these workflows.

WebP keeps transparency through the conversion (alpha is preserved), supports the same broad colour range, and is trivially renderable in every browser back to roughly 2020. For ship-to-the-asset-pipeline use this is the safer modern format.

How to convert AVIF to WebP

Drop your AVIF files into the upload area above
Pick a quality preset if webp supports it
Click Convert — every file processes locally on your device
Download a single file or a ZIP of the lot

Are my files uploaded anywhere?

No. Conversion runs in your browser using JavaScript and the Canvas API. Your files never leave your device. You can disconnect from the internet after this page loads and the tool will still work — try it and see.

Looking for something else? convert to JPG if you need universal compatibility (no transparency).

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About AVIF to WebP

Convert AVIF to WebP for tools and pipelines that accept WebP but not AVIF. Transparency preserved. Free, runs in your browser.

Like every tool on Buncha, this one runs entirely in your browser. There's no upload, no log, no record of what you've pasted or generated. Close the tab and the data is gone.

↳ Have feedback or found a bug? hello@buncha.tools