Free online ICO to WEBM converter

Convert an ICO icon into a WEBM still-image video with a chosen display duration.

Convert ICO to WEBM online - free

.ico .webm

Drop up to 3 .ICO files here or click to browse

Max 10 MB per file · No registration required · max 30 MB total

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Your file is processed instantly and deleted as soon as you download it.

How it works

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Upload your .ico file

Click to browse to select your file you want to convert or simply drag & drop your file into selected area.
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Perform .ico to .webm conversion

After successful file upload, click to convert when you are ready.
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Download converted .webm file

Conversion result is ready to download.

How to convert ico to webm file

November 15, 2026
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A video editor or playback system that accepts WEBM but not icon files may require an ICO image to be turned into a video clip. Since ICO contains still images, the resulting WEBM shows the selected icon for a chosen duration rather than adding motion.

What the ICO format is

ICO is a Windows icon format used for application icons, shortcuts, and website favicons. An ICO file can contain several raster images at different sizes and color depths; icon editors and Windows development tools create them, and they commonly appear in software folders and downloaded website assets.

What the WEBM format is

WEBM is a video container commonly used for browser playback and web publishing. It usually holds VP8 or VP9 video, with optional Vorbis or Opus audio. It suits video players and editing workflows that accept web video, but it does not preserve ICO’s multiple icon sizes as separate selectable images.

How to convert ICO to WEBM

Online on 101convert.com

Upload the ICO file on the converter page. Several files can be added for batch conversion; the page shows the per-file size limit.
Set show each picture for to choose how long each image is displayed.
Convert the files, then download the WEBM output.

Offline with desktop software

On Windows, macOS, or Linux, use the free, open-source ImageMagick and FFmpeg command-line tools. First inspect the ICO with magick identify input.ico, then extract its first embedded image to PNG with magick "input.ico[0]" frame.png. If the ICO contains multiple sizes, choose the representation you want before converting.

Create a five-second, 30-fps WEBM from that still image with ffmpeg -loop 1 -framerate 30 -i frame.png -t 5 -c:v libvpx-vp9 -pix_fmt yuv420p output.webm. Change -t 5 to the required duration. This common pixel format does not retain transparency.

Quality and compatibility

The video repeats one still image, so it has no motion; a longer duration only keeps the image on screen longer. The selected ICO image determines the source resolution, and scaling it up can make it look soft. The command above creates an opaque video; although VP9 in WebM can carry transparency, support varies among encoders and playback software.

Note: This ico to webm conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.

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ICO vs WEBM: format comparison

How the ICO and WEBM formats compare on the properties that matter most for this conversion.

Comparison of the ICO and WEBM file formats
Property	.ICO Icon Image File	.WEBM WebM
Open standard	Partly open	Yes
Compression	Both	Both
Typical file size	Very small	Small
Opens in a web browser	Yes, natively	Yes, natively
Further editing	Limited	Limited
Metadata support	Basic	Basic
Plain-text readable	No	No
Best used for	Icons	Streaming
Introduced	—	2010
Developer	Microsoft Corporation	Google
MIME type	image/x-icon	video/webm

Open ICO file Open WEBM file

Information about file extensions and file types is provided by File-Extensions.org

Frequently asked questions

Is the ICO to WEBM converter free?

Yes, converting ICO to WEBM on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.

How large can my ICO file be?

You can upload ICO files up to 10 MB and convert up to 3 files at once in a single batch. With a paid plan the limit is up to 2000 MB per file and 20 files at once, see our plans.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert ICO to WEBM?

No. The ICO to WEBM conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid ICO file for this ICO to WEBM conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

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Additional formats for
ico file conversion

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