CAVS to ICO Converter

Convert CAVS to ICO: What This Tutorial Covers

CAVS is a video file — a stream encoded with AVS, the Audio Video coding Standard developed by China's AVS Working Group (AVS1 became a Chinese national standard in 2006, roughly the same era as H.264, and is used in Chinese digital TV and IPTV). ICO, by contrast, is the Windows icon container, where each image is at most 256×256 pixels. So this conversion is not "turning a movie into an icon animation" — it grabs one still frame from the video and saves it as an icon, downscaled to icon dimensions. This guide shows you how to pick the right frame and the right icon size, and there is no audio in the output.

How to Convert CAVS to ICO

1. Upload Your CAVS File: Drag and drop your .cavs file onto the page or click "+ Add Files". You can queue several clips and convert them with the same settings.
2. Pick the Frame (Frame Selection → Specific Frame): Open Advanced Options, choose "Specific Frame", and set the Time (seconds) value to the moment you want — it defaults to 0 (the first frame). The field accepts decimals, so 2.100 means 2 seconds and 100 milliseconds into the video.
3. Set the Icon Size (Image resolution → Preset): Pick an icon dimension from the preset list. It defaults to 256P (256×256, the ICO maximum); smaller presets like 128, 64, 48, 32 and 16 px are also available for classic taskbar and favicon sizes.
4. Convert and Download: Click "Convert" and download your .ico file. No sign-up, no watermark.

Walk-through: Choosing the Frame That Becomes Your Icon

The whole result depends on which single frame you capture, because everything after the first second of footage is discarded. The default timestamp of 0 grabs the opening frame, which on many videos is a black lead-in or a logo card — rarely what you want for an icon.

To land on a usable frame:

• If you know the timestamp, type it straight into Time (seconds). Decimals matter: 1.5 is one and a half seconds, 12.250 is twelve seconds and 250 ms. This is the fastest way to hit an exact moment.
• If you want a logo or title screen, those usually sit a few seconds in — try values between 2 and 5 and re-run if the first attempt lands on a transition.
• If you are not sure where the good frame is, switch Frame Selection to "Multiple Screenshots" to export several stills across the clip, eyeball which one works, then come back and convert that exact timestamp to ICO.

Keep in mind the resolution drop: a 1080p CAVS frame is 1920×1080, and an icon caps at 256×256, so the image is shrunk by roughly 7-8x on the long edge. Choose a frame whose subject still reads when it is that small — busy, low-contrast frames turn to mush at icon scale.

When This Doesn't Work

If you actually want a viewable still photo rather than a tiny app icon, convert to a normal image format instead — CAVS to PNG keeps full resolution and transparency, and CAVS to JPG gives a smaller photographic file. If you want the clip to stay playable with motion and sound, an icon is the wrong target entirely — use CAVS to MP4. And if the upload is rejected, the file may not be a true AVS-coded stream (some tools mislabel other video as .cavs); re-export it from the source application or convert from its real format first. The only practical limit on big clips here is upload size and time, not your device.

Frequently Asked Questions

Does converting CAVS to ICO keep the video's motion or sound?

No. ICO is a still-image format, so the output is a single frame with no animation and no audio. If you need motion, convert the CAVS file to a video format like MP4 instead.

Which frame does the converter use by default?

The frame at time 0 — the very first frame of the video. Because that is often a black lead-in or fade, set the Time (seconds) field to a later moment (for example 2.5) to capture the frame you actually want.

Why does my icon look blurry or pixelated?

An icon is capped at 256×256 pixels, while a CAVS video frame is usually far larger (a 1080p frame is 1920×1080). Shrinking that much detail into a 256-pixel square loses sharpness. Pick a frame with a clear, simple subject and high contrast so it survives the downscale.

What icon sizes can I export?

The resolution preset defaults to 256P (256×256, the ICO maximum) and offers smaller standard sizes down to 16 px, covering common app, taskbar, and favicon dimensions. ICO files can hold several sizes, but this tool writes the single size you select.

Can I use this to make a website favicon?

You can — a 32×32 or 16×16 ICO works as a favicon.ico. In our testing, a single frame exported at 256P then dropped to 32px produced a crisp browser-tab favicon. If you'd rather build a complete multi-size favicon set from a logo or photo, use our Favicon Generator instead.

Is my file kept private?

Yes. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, and your file is never shared or made public.