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Need help?MOV to Xvid Converter
A .mov is Apple's QuickTime container, and in 2026 it almost always holds H.264 or HEVC video. Xvid is something much older: a free, GPL-licensed encoder for MPEG-4 Part 2 Advanced Simple Profile, forked from OpenDivX in 2001 and aimed squarely at the DivX-certified DVD players, set-top boxes and car head units of that era. This conversion exists for exactly one reason — a piece of hardware that can decode MPEG-4 ASP but not H.264. If that is not your problem, this is the wrong page.
What the Download Actually Is
The output file is named .xvid, but the bytes inside it are a standard AVI (RIFF) container carrying an MPEG-4 ASP video stream tagged xvid, plus an audio track. We verified this on the encoder output: the file begins with the ASCII marker RIFF....AVI and probes as an AVI.
Almost nothing recognises the .xvid extension. Rename the download to .avi before you try to play it. That single step turns it into a file that VLC, MPC-HC, most DivX/Xvid-certified DVD players and Windows will all open. The extension is a naming convention on this site for "AVI carrying an Xvid stream", not a distinct file format.
Xvid at a Glance
| Property | Value |
|---|---|
| What it is | An encoder implementation, not a container |
| Standard implemented | MPEG-4 Part 2 (ISO/IEC 14496-2), Advanced Simple Profile |
| Origin | Forked from OpenDivX in 2001 |
| Licence | GNU General Public License (free software) |
| Encoder used here | libxvid |
| FourCC written into the file | xvid |
| Container written here | AVI (RIFF), under a .xvid filename |
| Default audio codec on this page | MP3 |
| Quality control available | qscale 1–31 (lower is better) or a bitrate target — no CRF mode |
| Practical resolution ceiling | Explicit width/height entries are clamped to 2048 px |
| Alpha / HDR / 10-bit | None — 8-bit 4:2:0 only |
| Best for | DivX/Xvid-certified players and other pre-H.264 hardware |
MOV at a Glance
| Property | Value |
|---|---|
| What it is | A container format (QuickTime File Format) |
| Owner | Apple, in use since 1991 |
| Standardization | Became the basis of the ISO base media file format behind MP4 |
| Video codecs typically inside | H.264, HEVC, ProRes, occasionally MJPEG or DV |
| Audio codecs typically inside | AAC, PCM (LPCM), sometimes AC-3 |
| Carries alpha / HDR / 10-bit | Yes, depending on the codec inside |
| Plays on Windows Media Player | Only QuickTime v2.0 or earlier |
| Best for | Editing, capture, Apple workflows |
How to Convert MOV to Xvid
- Upload Your MOV File: Drag and drop the
.movonto the page or click "Add Files". Several clips can be queued and encoded with identical settings. - Pick an Audio Codec: Under Advanced Options, Video Codec shows Xvid as the only choice, but Audio Codec is a long list — MP3 is the default and the safest for legacy players, with AAC, AC3, MP2, Vorbis, WMA and several PCM variants also available.
- Set Quality Preset or Video resolution (Optional): Quality Preset opens on "Very High (Recommended)". Under Video resolution you can keep the original, scale by percentage, pick a height preset from 144p to 4320p, or enter an explicit width and height. Trim encodes only a chosen time range.
- Convert and Download: Click Convert, save the file, then rename it from
.xvidto.avi. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours — no sign-up, no watermark.
Rate Control on a Codec With No CRF Mode
MPEG-4 ASP has no constant-rate-factor mode, so the controls behave differently than they would on an H.264 target:
- Quality Preset does not set a quality target. It multiplies your MOV's own video bitrate: Highest 1.50×, Very High 1.32×, High 1.14×, Medium 0.90×, Low 0.72×, Very Low 0.54×, Lowest 0.30×, encoded with 1.5× headroom for busy scenes. Because MPEG-4 ASP needs far more bits than H.264 for the same picture, even 1.32× can look softer than the source.
- Constant Quality and Constraint Quality expose a slider labelled "CRF", but on Xvid the value goes to the encoder as an MPEG-style qscale from 1 to 31 where lower is better. It opens at 23, which is near the worst end of that scale — 2 to 5 is the range worth using. Prefer Constraint Quality, which pairs the slider with a Max bitrate ceiling.
- Constant Bitrate, Variable Bitrate and Specific file size all behave normally and are the right choice when a device or a disc has a hard budget.
- Video resolution presets set the height and let the width follow the source aspect. Explicit width or height values above 2048 px are clamped to 2048 for this codec; leaving the control on Keep original passes the source resolution through as-is.
Frequently Asked Questions
Why is the download called .xvid instead of .avi?
Because the site names output files after the format you selected, and you selected Xvid — which is a codec, not a container. The bytes are a normal AVI file. Renaming the download to .avi is all that is needed; nothing inside the file has to change, and players that rejected the .xvid name will open the renamed copy immediately.
Is Xvid the same thing as DivX?
They are siblings, not twins. Both implement MPEG-4 Part 2 Advanced Simple Profile, and Xvid began in 2001 as a fork of OpenDivX after DivX Networks moved to a closed commercial codec. Xvid is GPL free software; DivX is proprietary. Many certified players accept either, but if the device's manual specifically names DivX, use MOV to DivX, which writes the stream with the mpeg4 encoder instead.
Why is my Xvid file bigger than the MOV it came from?
Two things stack up. MPEG-4 ASP is roughly a generation behind H.264 in efficiency, so it needs more bits for the same visible quality — and the default Very High preset asks for 1.32× the source video's bitrate on top of that. If size matters, switch to Specific file size or Constant Bitrate and name a number, or step the preset down to Medium or lower.
Will converting to Xvid improve the picture?
No. This is a re-encode of already-compressed video, so it can only preserve or discard detail, never restore it. The single legitimate reason to convert MOV to Xvid is that a piece of hardware refuses to decode H.264. For anything made in the last fifteen years, MOV to MP4 gives a smaller file and a better picture.
What resolution can Xvid handle here?
Leaving Video resolution on Keep original passes the source dimensions straight through, and the encoder will accept large frames. If you type an explicit width or height, values above 2048 px are clamped to 2048 for this codec. Separately, a lot of Xvid-certified hardware from the DVD era was only tested against standard-definition and 720p frames, so if a player rejects the file, re-encoding at 720×480 or 1280×720 is the first thing to try.
Does the audio stay in sync in the AVI container?
It should, with one caveat: AVI has no native support for variable frame rate video. If your MOV came from a phone screen recording or a game capture with a fluctuating frame rate, the AVI wrapper stores a single nominal rate, and long clips can drift out of sync. Convert variable-frame-rate captures to a modern container instead, or trim them into shorter segments before encoding.
My camcorder footage is interlaced — will the combing be cleaned up?
No. There is no deinterlacing anywhere in this pipeline, so interlaced fields are encoded as they arrive and the comb pattern stays in the Xvid output. Deinterlace in a desktop editor first if the footage shows horizontal tearing on movement.
How long are my uploaded files kept?
Files travel over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours. There is no account requirement and no watermark. The practical limit on a large MOV is upload time, since the whole file has to arrive before encoding begins — trimming the source with the video cutter first is much faster than uploading an hour of footage to keep two minutes of it.