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PNGful

Convert AVIF to WebP

AVIF gives the smallest files of any modern web format, but some older tools and pipelines still don't decode it. WebP is the pragmatic step down: nearly as compact, and supported almost everywhere images are handled. PNGful converts it in your browser.

Content last reviewed 2026-07-15.

Preconfigured for AVIF input — other formats work too.

85%

Converting to WebP: Modern web format that beats JPEG and PNG on size, with transparency support.

or drag & drop images here, or paste from your clipboard

PNG, JPG, WebP, AVIF, GIF, BMP, TIFF, HEIC, SVG

How it works

  1. 1

    Add AVIF files

    Drop, pick or paste — batch conversion is supported.

  2. 2

    Convert the files

    Each file is decoded and re-encoded as WebP in your browser.

  3. 3

    Adjust if needed

    Use the quality slider to trade size against detail.

  4. 4

    Download

    Single files or everything as a ZIP.

Why convert AVIF to WebP?

  • WebP is decoded by a wider range of tools, CMSs, and older software than AVIF is.
  • Files stay small — WebP is far more efficient than JPG or PNG, so you keep most of AVIF's size advantage.
  • A safe web format when a platform accepts WebP but chokes on AVIF.
  • Free, watermark-free, and no account — converted in your browser.

Good to know

  • Both formats are lossy by default, so re-encoding sheds a little detail; a high quality setting keeps it visually negligible.
  • WebP preserves transparency, so any alpha channel in the AVIF carries over intact.
  • Expect the WebP to be somewhat larger than the AVIF, since AVIF compresses more aggressively.
  • If you need the broadest possible compatibility rather than a web format, convert AVIF to JPG or PNG instead.

Frequently asked questions

Why convert AVIF to WebP rather than keep AVIF?

Convert when a tool or platform accepts WebP but not AVIF. AVIF is newer and a few pipelines still lack support, whereas WebP is decoded almost everywhere images are processed.

Will the WebP be much larger than the AVIF?

A little larger, not dramatically. AVIF is the most efficient common format, and WebP is the next best, so you keep most of the size advantage over JPG or PNG.

Is transparency preserved?

Yes. Both AVIF and WebP support an alpha channel, so transparent and semi-transparent areas convert without being flattened.

Is it free to use?

Completely — no account, no watermark, no paid limits. The conversion happens in your browser.

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