CAVS to MOV Converter

CAVS to MOV Converter

A .cavs file holds video encoded with AVS (Audio Video Coding Standard), the codec developed in China as a domestic alternative to MPEG-2 and H.264. Apple's QuickTime, Final Cut Pro, and iMovie cannot decode AVS, so the practical fix is to transcode the stream into a MOV (QuickTime) container that those tools read natively. This converter re-encodes the video — typically to H.264 inside MOV — so it plays and edits on a Mac without extra plugins.

CAVS Format at a Glance

MOV Format at a Glance

How to Convert CAVS to MOV

1. Upload Your CAVS File: Drag and drop your .cavs file onto the page, or click "+ Add Files" to browse. You can queue several clips and convert them with the same settings.
2. Set the Quality Preset: Open Advanced Options and leave Preset on "Very High (Recommended)". Because AVS cannot be copied into MOV untouched, the video is re-encoded; a high preset keeps the result as close to the source as possible.
3. Adjust Video Resolution (Optional): Keep "Keep original" to preserve the source frame size, or pick a preset resolution or a custom Width x Height if you need to downscale. Use Trim to export only a time range.
4. Convert and Download: Click "Convert" and save the MOV. No sign-up, no watermark.

Frequently Asked Questions

Will converting CAVS to MOV improve the video quality?

No. AVS is a lossy codec, and the MOV output is a fresh H.264 (or similar) re-encode of an already-compressed source, so quality cannot increase — it can only be preserved or lost. Keeping the Quality Preset on "Very High" minimizes the additional loss from this second encode. There is no quality gain to be had; the goal is compatibility, not enhancement.

Why won't my CAVS file play in QuickTime or Final Cut?

QuickTime, Final Cut Pro, and iMovie have no AVS decoder built in, and Apple does not ship one. AVS is the Chinese national video standard, mainly deployed in broadcast and IPTV equipment, so Apple's software simply does not recognize the bitstream. Converting to a MOV with an H.264 video track gives those apps a codec they can decode.

Does the MOV output use H.264 or something else?

By default the video track is re-encoded to H.264, which every modern Mac, iPhone, and QuickTime build plays. H.264 inside a MOV container is the most broadly compatible combination for Apple software, which is why it is the sensible default for a CAVS source headed for Final Cut or iMovie.

Is MOV the same as MP4?

They are closely related but not identical. Apple's QuickTime file format was the technical basis for the ISO MPEG-4 (MP4) container, so the two share a structure and often the same H.264 video inside. MOV is Apple's native flavor and is the safer choice for Final Cut and iMovie; MP4 is the more universal cross-platform wrapper. If you need wider device support instead, use CAVS to MP4.

How large will the MOV file be compared with the original CAVS?

It depends on the resolution, length, and the bitrate the re-encode targets. Because AVS is efficient, an H.264 MOV at high quality can end up similar in size or somewhat larger for the same visual fidelity. In our testing, a 60-second standard-definition AVS clip re-encoded at the "Very High" preset produced a MOV in the low single-digit megabytes. If the result is too big to share, run it through Compress MOV afterward.

Are my uploaded files kept private?

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