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ICO to WEBP converter

Convert ICO to WEBP in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.

I want WEBP
90%
Icon sizes
How to make the SVG

Tracing suits logos, icons and flat artwork and scales cleanly. Photos are better kept as pixels inside the SVG.

16
50%
Dither Scatters black dots to suggest gray, instead of a hard cut-off.
Advanced 5
Keep the animation For animated GIF, WebP and APNG sources. Turn off to save just the first frame.
Rotate
Mirror horizontally
Mirror vertically

For an exact width and height, use the Resize Image tool instead.

Bytes of your files sent anywhere: 0 B

Related conversions

Need it the other way round? Convert WEBP to ICO

Other ways to convert ICO

Convert other formats to WEBP

Read more about the ICO format and the WEBP format, or see every image tool and all image conversions.

Should you convert ICO to WEBP?

A safe conversion when WEBP is what you need: both ICO and WEBP keep every pixel, so the picture itself doesn’t change.

Bear in mind WEBP is opens in current browsers and apps: it works in every current browser, but plenty of desktop apps, print shops and upload forms still refuse it.

ICO is a small container that holds the same icon at several sizes; WEBP is a web image format that can be lossy or lossless, with transparency and animation. Use WEBP for pictures on your own website or app, where every kilobyte affects load time.

ICO and WEBP compared
Property ICO WEBP
Compression Lossless Lossy or lossless
Transparency Yes Yes
Animation No Yes
Support Opens almost everywhere Opens in current browsers and apps
Best for Website favicons and Windows shortcuts Images on websites, where smaller files load faster
Introduced 1985 2010

How to convert ICO to WEBP

  1. 01

    Add your ICO

    Drop your ICO image onto the box, or click to choose it. It is read from your disk and stays there.

  2. 02

    Check the settings

    The output is already set to WEBP. Change the quality if you want to; the defaults suit most files.

  3. 03

    Save the WEBP

    Press convert and save the WEBP. Several files come back together as a ZIP.

What changes when ICO becomes WEBP

Transparency is kept

ICO and WEBP both support transparency, so transparent backgrounds and soft edges come through unchanged.

Expect a smaller file

WEBP usually stores the same content in less space than ICO. ICO: A full favicon with every size is usually under 100 KB. WEBP: Typically 25–35% smaller than the same JPG.

This page is put together from our notes on each format, choosing only what is true of ICO and WEBP, so every pairing states the same facts the same way. How these pages are made.

Why it doesn’t upload

Changing a picture’s format is work your browser already knows how to do. Sending your photos to a server first only adds waiting and risk, so nothing is sent.

How to check for yourself

Worth knowing

  • About the ICO. Renaming a PNG to favicon.ico works in some browsers and silently fails in others. A real ICO holds several sizes so each place picks the right one.
  • About the WEBP. Images saved from websites arrive as WEBP even when the page looked like it showed a JPG, and then a document editor or upload form refuses them.
  • DDS, PSD, EXR, XWD and JPEG 2000 are read by the FFmpeg engine, a one-time 31 MB download.

Questions

Will converting ICO to WEBP lose quality?

WEBP is lossy, so some detail is discarded. The quality slider decides how much; the default of 90 is chosen so the difference is invisible in almost every photo.

Will the WEBP be smaller than the ICO?

Expect a smaller file. WEBP usually stores the same content in less space than ICO. ICO: A full favicon with every size is usually under 100 KB. WEBP: Typically 25–35% smaller than the same JPG.

Read more about this

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