What's the difference between WebP and ICO?

WebP is Google's modern image format. ICO is the Windows icon format and the classic home of the site favicon.ico.

Why convert away from WebP?

WebP is Google's modern image format. Where it falls down: print pipelines and pre-2020 software (use PNG/JPG for compatibility); distribution to non-browser environments (chat apps, email, archives). ICO addresses that for most workflows.

When is ICO the right format?

ICO is a good choice for: site favicons (favicon.ico) and Windows application/shortcut icons; bundling several icon sizes in one file. It is a poor choice when photographs and general web images (use WebP, JPG, or PNG).

Anything surprising about WebP or ICO?

WebP lossless is competitive with PNG and often smaller. Worth trying. And on the ICO side: modern .ico files embed PNG frames; convert.now packs a single PNG frame per icon.

Does this work on mobile?

Yes. The drop zone falls back to your phone's file picker, and conversions run on-device just like desktop. Large files may be slower on mobile due to CPU and memory constraints, but the workflow is identical.

What's the maximum file size?

No hard limit — the browser handles it. Files under 50MB convert in a few seconds. Larger files work but may take longer as the browser allocates memory. If you hit issues, batch in smaller groups.

Convert WebP to ICO

Turn a WebP into a multi-resolution ICO favicon. Transparency and colour are carried across. Free, in your browser.

Drop images to convert

PNG, JPG, WebP, AVIF, JPEG XL, TIFF, BMP, GIF, SVG, HDR, ICO — any combination

Files stay on your device. Open DevTools' Network tab to verify.

Output format

ICO

Overview

Why convert WebP to ICO

ICO is a more practical choice than WebP for most modern workflows: site favicons (favicon.ico) and Windows application/shortcut icons. Coming from WebP, the thing to know is that print pipelines and pre-2020 software (use PNG/JPG for compatibility).

Comparison

WebP vs ICO: what actually differs

WebP compared with ICO across encoding, fidelity, file size and support.
Attribute	WebP	ICO
Compression	Lossy or lossless	Lossless
Transparency	Yes	Yes
Animation	Yes	No
Typical file size	Medium	Varies
Browser support	Supported by every evergreen browser since 2020 (Chrome, Firefox, Safari 14+, Edge). Older systems and some editing tools still struggle.	Universally supported as a favicon — every browser reads .ico. Not used for general on-page images.

How to

How to convert WebP to ICO

01
Drop your WebP files
Drag one or more WebP files onto the dropzone above, or click to browse. Files stay on your device — nothing uploads.
02
Convert in your browser
convert.now decodes each WebP and re-encodes it as ICO via WebAssembly. The conversion runs in a Web Worker so the page stays responsive.
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

WebP to ICO: common questions

No. The conversion from WebP 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.

Related WebP converters

Last updated 27 August 2026

Why convert WebP to ICO

WebP vs ICO: what actually differs

How to convert WebP to ICO

Drop your WebP files

Convert in your browser

Download the result

Why convert.now

WebP to ICO: common questions

Related WebP converters