DivX to ICO Converter

Convert DivX to ICO Online

Pull a frame out of a DivX video and save it as a Windows .ico — the format Windows uses for application icons, shortcut icons, and browser favicons. DivX is an MPEG-4 Part 2 video, so the tool decodes a single frame at the timestamp you choose and writes that frame out as an icon. Two things make this conversion different from every other still-image target on the site, and both are covered below: ICO is capped at 256 pixels by the format itself, and the export scales your frame to fit that box without cropping it, so a widescreen frame does not come out square.

How to Convert DivX to ICO

1. Upload Your DivX File: Drag and drop your .divx file onto the page or click "+ Add Files" to browse. Several clips can be queued and converted with the same settings.
2. Choose the Frame: Open Advanced Options and find Frame Selection. Specific Frame is preselected — type the moment you want into Time (seconds), where 12.5 means 12.5 seconds in. Switch to Multiple Screenshots with a Capture Rate if you would rather sample the clip and choose the best-looking frame afterwards.
3. Pick a Preset Resolution: Under Image resolution, the Preset dropdown is the only sizing control available on this page, running 256P, 192P, 180P, 128P, 64P, 48P, 32P, 24P and 16P. Pick the size that matches where the icon will be used.
4. Convert and Download: Click "Convert" and save your .ico. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours. No sign-up, no watermark.

The Aspect-Ratio Trap Nobody Warns You About

Icons are square. Video frames are not. The export resizes your frame so its height matches the preset you picked and leaves the aspect ratio alone — it does not crop the sides off and it does not pad the file out to a square. A 1920x1080 frame at 256P therefore produces a 455x256 image, not 256x256 — and because an ICO directory cannot declare a dimension above 256, a widescreen icon written at 256P or 192P is wider than the format can honestly record, and many readers misinterpret the file. Treat 128P as the practical ceiling for widescreen frames, or crop square first:

That is fine for a favicon, where browsers scale whatever you give them, and fine anywhere the icon sits on its own. It is not ideal for a Windows application icon, where the shell expects a square. If you need a true square, crop the frame square first: grab it as an image with DivX to PNG, crop to 1:1 in any editor, then run it through PNG to ICO. That route also lets you keep an alpha channel, which a video frame can never have.

Which Size Should You Export?

Microsoft's app icon construction guidance states that apps should ship, at a bare minimum, 16x16, 24x24, 32x32, 48x48 and 256x256 — and that Windows looks for an exact size match first, falling back to the next size up and scaling it down. Here is where each size actually surfaces in Windows 11:

The presets here cover 16, 24, 32, 48, 64, 128, 180, 192 and 256. A couple of the scaled sizes Windows may request — 36 px and 96 px — have no exact preset, but because Windows scales down from the next size available, exporting at 256P is the safest single choice. Export at more than one preset if you want to cover several slots with pixel-exact art.

Frequently Asked Questions

Why is 256 the largest size offered?

Because that is the ceiling the ICO format itself imposes. An icon directory entry stores each image's width and height as a single byte, with a value of 0 used to mean 256, so 256 pixels is the largest dimension the format can describe. There is no 512-pixel ICO. If you need something bigger, PNG is the format to use.

My icon came out 455x256 instead of 256x256 — is that a bug?

No, that is the resize behaviour. The preset sets the height and the width follows the aspect ratio, rather than the frame being cropped or letterboxed to a square. A 16:9 frame is 16:9 at every preset — 455x256 at 256P, which is wider than an ICO directory can declare, so prefer 128P or smaller for widescreen frames. To get a genuine square, crop the image to 1:1 before converting it to ICO.

Can an ICO made from video be transparent?

No. DivX video has no alpha channel, so every decoded frame is fully opaque and the icon has a solid rectangular background. Microsoft's own guidance is that icons look best with a transparent background, which is a real argument for cutting your subject out in an editor first and going in through PNG to ICO rather than straight from video.

Can the icon be animated like the source clip?

No. ICO is a static image format — it can hold several still images at different sizes in one file, but it has no notion of frames or timing. This conversion always produces a still. For motion you would need an animated format such as GIF, which Windows will not accept as an application icon.

Why does my icon look like mush at 16 or 32 pixels?

Two effects stack. DivX is a lossy codec, so the frame already carries blocking and ringing artifacts before anything is resized, and a photographic frame squeezed into a 16-pixel box has almost no room left for detail. Simple, high-contrast subjects survive the downscale; busy scenes with fine texture do not. Choosing a still, well-lit, low-motion moment makes a much bigger difference than any export setting.

Which frame does it capture if I leave the settings alone?

Specific Frame is preselected, and it grabs the frame at whatever value sits in Time (seconds). Set that field to the moment you want. If you are not sure which moment reads best at icon size, switch to Multiple Screenshots, pick a Capture Rate, and review the set afterwards — small icons reward frames you would never pick at full size.

Can I use this output as a website favicon?

Yes, and this is the use case it fits best. Browsers accept a single-image ICO and scale it themselves, and they do not require a square, so the aspect-ratio behaviour above is not a problem. Export at 32P or 48P for a classic favicon; export at 256P if you also want the file to serve as a high-DPI bookmark or tile image.

Why are the resolution percentage and Width x Height controls missing here?

They are hidden deliberately on ICO output, because the format only accepts a fixed set of small sizes and free-form dimensions would let you produce icons Windows cannot use. On this page the Preset dropdown is the entire sizing interface. Other still targets, such as DivX to JPG, keep the full percentage, width, height and Width x Height controls.

What happens to my uploaded DivX file?

It travels over an encrypted connection, is processed on our servers, and is deleted automatically after a few hours. There is no sign-up, no watermark, and files are never shared or made public. Because only a single frame has to be decoded rather than the whole clip, the slow part of this conversion is almost always the upload rather than the processing.