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Supports: ICO
ICO is a Windows icon image — a small, square still picture. DivX is a video format. This converter turns a single ICO into a short, silent DivX video clip that displays that one icon for a set number of seconds. It is a still-to-video conversion, so the output has no audio and the tiny icon is scaled up to fill the video frame, which can look blocky. If you only want the icon as a normal picture, convert ICO to PNG instead.
| Property | Value |
|---|---|
| Type | Raster image (icon) |
| Introduced | Windows 1.0 (1985), via the ICO/CUR resource format |
| Contents | One or more square images in a single file |
| Common sizes | 16x16, 32x32, 48x48, 256x256 pixels |
| Color / transparency | Up to 32-bit RGBA with an alpha channel |
| Used for | App icons, favicons, desktop and taskbar icons |
| Audio | None (it is a still image) |
| Property | Value |
|---|---|
| Type | Video codec / format |
| Codec produced here | DivX (MPEG-4 Part 2, Advanced Simple Profile) |
| Container | AVI (Audio Video Interleave) |
| Audio in this conversion | None — the source icon is silent, so the output is a silent video |
| First released | DivX codec emerged around 1998-2000; DivX 4.0 in 2001 |
| Still maintained | Yes — by DivX, LLC (San Diego); current builds for Windows and macOS |
| Plays on | VLC, the free DivX Player, and many DivX-certified DVD/Blu-ray players, TVs, and car stereos |
ICO is a still image with no audio track, so there is nothing to put on the video's soundtrack. The converter produces a silent DivX clip that simply displays the icon for the duration you set. This is expected, not an error.
ICO files are small — often 16x16 to 256x256 pixels. When that tiny image is scaled up to a video resolution like 720p or 1080p, the converter has to stretch each pixel across many screen pixels, which produces blockiness. Picking a smaller output resolution, or starting from the largest size stored inside the ICO, reduces the effect.
The output is the DivX codec, which is MPEG-4 Part 2 (Advanced Simple Profile), wrapped in an AVI container. Because the source is a silent image, no audio codec is added. In our testing, a single 256x256 icon set to a 5-second duration at 720p produced a short AVI of roughly a few hundred kilobytes, depending on the chosen resolution.
If your goal is to use the icon as a picture — on a website, in a document, or in an image editor — keep it as an image and convert ICO to PNG, which preserves transparency. Converting to DivX only makes sense when you specifically need a video file, such as a placeholder clip or a slideshow frame.
Yes. The Image Duration dropdown sets how many seconds the icon is shown, from a fraction of a second up to 10 seconds per frame. The value you pick becomes the total length of the single-image video.
No. The DivX (MPEG-4 Part 2) codec does not carry an alpha channel, so any transparent areas of the icon are flattened against the Background Color you choose. Set that color to match your intended backdrop before converting.
Yes. Your ICO is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. There is no sign-up, no watermark, and files are never shared or made public.