Convert MOV to MXF — Free Online Tool
Convert MOV files to MXF for broadcast and post-production workflows, transcoding video to H.264 and audio to uncompressed PCM (16-bit) — the lossless audio standard required by many broadcast ingest systems. Runs entirely in your browser with no file uploads.
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FFmpeg Command
Copy this command to run the same conversion locally with FFmpeg on your desktop. Download FFmpeg
Drop your MOV file here
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Note: Browser-based encoding uses approximate quality targets. For precise CRF compression, copy the FFmpeg command above and run it on your desktop.
Estimated output:
Conversion Complete!
DownloadHow It Works
MOV is Apple's QuickTime container, widely used in editing suites like Final Cut Pro and Premiere. MXF (Material Exchange Format) is the professional broadcast standard expected by systems like Avid, broadcast playout servers, and archival workflows. During this conversion, the video stream is re-encoded from whatever codec the MOV contains (commonly H.264 or ProRes) to H.264 (libx264) at CRF 23, which produces good quality at moderate file sizes. More significantly, the audio is transcoded from the MOV's audio — often AAC or MP3 — to PCM 16-bit little-endian (pcm_s16le), which is uncompressed linear audio. This audio transcoding is the most critical transformation: broadcast and post-production environments almost universally require uncompressed PCM audio in MXF files rather than lossy compressed audio. The MXF container also carries richer operational metadata and timecode support compared to MOV, making the output compatible with professional broadcast ingest pipelines.
What Each Flag Does
| Flag | What it does |
|---|---|
ffmpeg
|
Invokes the FFmpeg application. This is the same engine running inside your browser via WebAssembly (FFmpeg.wasm) — the command shown is identical to what you would run on a desktop installation of FFmpeg. |
-i input.mov
|
Specifies the input file as a MOV (QuickTime) container. FFmpeg will detect the video and audio codecs inside — commonly H.264, ProRes, AAC, or PCM — and use this information to plan the conversion to MXF. |
-c:v libx264
|
Re-encodes the video stream using the H.264 codec, which is one of the three video codecs supported in MXF by FFmpeg (alongside MJPEG and MPEG-2). H.264 offers a good balance of quality and file size and is accepted by most modern broadcast ingest systems. |
-c:a pcm_s16le
|
Transcodes the audio — whatever codec it was in the MOV (typically AAC) — to uncompressed 16-bit signed little-endian PCM. This is the default and most compatible audio format for professional MXF files, required by most broadcast and post-production systems that mandate lossless, uncompressed audio. |
-crf 23
|
Sets the H.264 Constant Rate Factor to 23, which is the FFmpeg default and produces a good quality-to-file-size balance. Lower values (e.g., 18) increase quality and file size; higher values (e.g., 28) reduce both. Adjust this based on your broadcaster's video bitrate requirements. |
-b:a 192k
|
Specifies a 192 kbps audio bitrate target. Note that this flag has no practical effect when the audio codec is pcm_s16le, because uncompressed PCM audio bitrate is fixed by sample rate and bit depth — not a compression target. It is included for completeness but can be safely omitted when using any PCM audio codec. |
output.mxf
|
Defines the output filename and tells FFmpeg to write an MXF container (Material Exchange Format). The .mxf extension causes FFmpeg to use its MXF muxer, which writes the H.264 video and PCM audio into an OP1a MXF file compatible with broadcast ingest systems. |
Common Use Cases
- Preparing camera footage shot in QuickTime MOV format for ingest into a broadcast playout server or MAM (Media Asset Management) system that requires MXF
- Delivering finished program content from a Final Cut Pro or Premiere timeline (exported as MOV) to a broadcaster whose technical specifications mandate MXF with PCM audio
- Archiving professional video projects in MXF, which is an internationally standardized format (SMPTE 377) better suited for long-term institutional preservation than MOV
- Converting interview or B-roll footage from a DSLR or mirrorless camera (which typically records MOV) into MXF for integration into an Avid Media Composer project
- Wrapping a QuickTime master file into MXF to meet the technical delivery requirements of a television network or streaming distributor that mandates MXF containers
- Generating MXF files with uncompressed PCM audio from MOV source material to meet audio quality standards for post-production dubbing, audio mixing, or accessibility workflows
Frequently Asked Questions
Yes, converting AAC or other compressed audio to PCM 16-bit (pcm_s16le) will noticeably increase the audio portion of the file size, since PCM is uncompressed. However, this is intentional and expected: broadcast and professional post-production workflows that use MXF almost universally require uncompressed PCM audio because it introduces no additional generational loss and is guaranteed to be compatible with every professional audio workstation and broadcast system. The video (H.264) remains compressed, so the overall size increase is typically modest relative to the full file.
MXF has significantly richer metadata support than MOV and natively supports timecode tracks, which is one of its key advantages in broadcast environments. However, the specific metadata carried over depends on what your source MOV contains and how FFmpeg maps it. Standard timecode embedded in the MOV will typically be preserved, but proprietary camera metadata (such as Canon or Sony lens data) may not fully transfer, as MXF has its own metadata schema. For critical deliverables, always verify the output MXF in a professional tool like MediaInfo or your target ingest system.
No. MXF with H.264 video (as produced by this conversion) does not support alpha channel transparency, and the H.264 codec itself does not carry alpha. If your source MOV contains transparency — for example, an animation or motion graphic with an alpha channel encoded in ProRes 4444 — that transparency information will be lost in the output MXF. If you need to deliver transparent video in a professional format, ProRes 4444 in a MOV container remains the more appropriate choice.
Yes. To change video quality, adjust the -crf value: lower numbers (e.g., -crf 18) produce higher quality and larger files, while higher numbers (e.g., -crf 28) produce smaller files with more compression artifacts. MXF also supports MPEG-2 video (-c:v mpeg2video), which some older broadcast systems require instead of H.264 — simply replace 'libx264' with 'mpeg2video' and remove the -crf flag, using -b:v instead to set a bitrate such as -b:v 50M for broadcast-grade MPEG-2. Check your broadcaster's technical delivery specifications before choosing.
On macOS or Linux, you can use a shell loop: run 'for f in *.mov; do ffmpeg -i "$f" -c:v libx264 -c:a pcm_s16le -crf 23 -b:a 192k "${f%.mov}.mxf"; done' in your terminal. On Windows Command Prompt, use 'for %f in (*.mov) do ffmpeg -i "%f" -c:v libx264 -c:a pcm_s16le -crf 23 -b:a 192k "%~nf.mxf"'. This browser-based tool processes one file at a time, so the FFmpeg command displayed here is especially useful for batch jobs or files larger than 1GB.
MXF is designed as a professional media exchange format optimized for audio, video, and operational metadata in broadcast pipelines — it does not have standardized support for subtitle tracks or chapter markers in the way consumer formats like MOV or MKV do. If your source MOV contains embedded subtitles or chapter data, those tracks will be dropped during conversion to MXF. For broadcast delivery requiring subtitles, these are typically handled as separate sidecar files (such as SRT, STL, or EBU-TT) delivered alongside the MXF, which is standard practice in broadcast workflows.
Technical Notes
MXF is defined by SMPTE standards (primarily SMPTE 377) and is the de facto container for broadcast ingest, news production, and professional archival. The FFmpeg MXF muxer writes an OP1a operational pattern by default, which is the most broadly compatible variant. H.264 in MXF is widely supported in modern broadcast infrastructure, but legacy systems may expect MPEG-2 video — always confirm with your target system's technical specification sheet. The audio codec choice of pcm_s16le (16-bit signed little-endian PCM) produces uncompressed audio at CD quality sample depth; if your workflow requires 24-bit audio (common in high-end post-production), you can substitute -c:a pcm_s24le in the command. Note that MXF does not support the MOV-specific '-movflags +faststart' optimization (which enables progressive web streaming), as MXF is not a streaming-oriented format. The -b:a 192k flag is present in the command but has no practical effect on PCM audio, since PCM bitrate is determined entirely by sample rate and bit depth rather than a compression target — it can be omitted when using any PCM codec variant. If your source MOV was recorded in a wide color gamut or HDR color space, colorspace metadata may not fully transfer into MXF via FFmpeg without additional flags such as -colorspace, -color_primaries, and -color_trc.