Convert AVIF to ICO

Turn a AVIF into a multi-resolution ICO favicon. AVIF is already efficiently compressed, so the size difference may be modest. Free, in your browser.

Output format

ICO

Overview

Why convert AVIF to ICO

AVIF has limited compatibility — supported in chrome, firefox, safari 16+, and edge. pre-2022 devices may not decode it. ICO is broadly supported, which is the most common reason to convert. AVIF is already efficiently compressed, so the size difference may be modest.

Comparison

AVIF vs ICO: what actually differs

AVIF compared with ICO across encoding, fidelity, file size and support.
AttributeAVIFICO
CompressionLossyLossless
TransparencyYesYes
AnimationYesNo
Typical file sizeSmallVaries
Browser supportSupported in Chrome, Firefox, Safari 16+, and Edge. Pre-2022 devices may not decode it.Universally supported as a favicon — every browser reads .ico. Not used for general on-page images.

How to

How to convert AVIF to ICO

  1. 01

    Drop your AVIF files

    Drag one or more AVIF files onto the dropzone above, or click to browse. Files stay on your device — nothing uploads.

  2. 02

    Convert in your browser

    convert.now decodes each AVIF and re-encodes it as ICO via WebAssembly. The conversion runs in a Web Worker so the page stays responsive.

  3. 03

    Download the result

    Download a single ICO file or, for batch conversions, a zip of all converted files. Filenames preserve the originals.

Why here

Why convert.now

  • Private

    Files stay in your browser. No upload step. Nothing for anyone to see.

  • Fast

    No queue, no upload wait. Conversion starts the moment you drop a file.

  • Free

    No ads. No file-count limit. No sign-up wall. Just the converter.

FAQ

AVIF to ICO: common questions

No. The conversion from AVIF to ICO runs entirely in your browser using WebAssembly. Files never leave your device. Open DevTools' Network tab if you'd like to verify — there are no network requests with file contents.

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