Open .mxf files online
To open a .mxf file in your browser, press Open editor on the video editor, then bring your file into the project from inside the editor. On 2026-10-19 we opened three test files made with ffmpeg: an OP1a file with MPEG-2 video, an OP1a file with H.264 video and an OP-Atom file, all 1280 x 720 and 6 seconds long. The editor read each one (codec, size, frame rate and length) and drew a thumbnail. We cut the MPEG-2 file to 3 seconds in a new sequence and exported it two ways. The default H.264 MP4 was a valid file with H.264 video and AAC sound. The editor can also write MXF: the Preset Manager (More presets) has MXF OP1a and OP-Atom presets, and MXF OP1a DNxHR HQ gave a valid 3-second OP1a file that opened again in the editor. Things to know: our test browser cannot fill the system file picker, so we loaded files by dropping them onto the editor window; we only tested ffmpeg-made files, not camera or broadcast MXF; and the OP-Atom preset wrote one file with video only. Nothing is uploaded and there is no sign-up.
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Can I open it?
| Check | Result | Notes |
|---|---|---|
| Listed by the engine | Listed in docs | MXF (OP1a and OP-Atom) is listed for import. Export lists MXF OP1a and Avid-style OP-Atom with DNxHR, ProRes or H.264 video and PCM audio. |
| Opened an OP1a .mxf file | Works | A 6-second 1280 x 720 25 fps OP1a file (MPEG-2 4:2:2 video and mono PCM sound, made with ffmpeg) was added to the project. The Info panel read it as a movie with MPEG-2 Video (4:2:2@High), 48000 Hz 1 channel PCM and a length of 0:06:00, and the source monitor showed the test pattern. |
| Opened OP-Atom and OP1a H.264 .mxf files | Works | An OP-Atom file (MPEG-2 video, no audio) and an OP1a file with H.264 video each showed up in the project with a thumbnail, and the Info panel read the right codec, 25 fps, 1280 x 720 and 0:06:00. We only checked that they import; we did not edit or export them. |
| Edited it | Works | We made a new sequence from the MPEG-2 clip and cut it at 3 seconds, removing the second half. The sequence became 3:00 long. |
| Exported as H.264 MP4 | Works | Export with the H.264 setting gave a 5.5 MB .mp4 (after we switched formats the bitrate field showed 20 Mbps). ffprobe read it as H.264 High 1280 x 720 at 25 fps, 75 frames, AAC audio, 3.0 seconds. A frame at 1 second matched the source frame (its timecode read 00:00:01.000); colors differ slightly because the export carries a color tag the source did not have. |
| Exported as .mxf | Works | The Format list first showed no MXF, but the Preset Manager (More presets) has MXF OP1a DNxHR HQ, MXF OP1a ProRes 422 HQ, MXF OP1a H.264 and MXF OP-Atom DNxHR (Avid). With MXF OP1a DNxHR HQ the export gave a 31.3 MB .mxf; ffprobe read it as an OP1a MXF written by FilmCraft with DNxHR HQ 1280 x 720 at 25 fps, 24-bit PCM stereo at 48 kHz, 3.000 seconds and start timecode 00:00:00:00. The frame at 1 second matched the source, and dropping the exported file back into the editor imported it with a 0:03 length. |
| Exported as OP-Atom | Partial | The MXF OP-Atom DNxHR (Avid) preset downloaded one 30.4 MB .mxf. ffprobe read it as OP-Atom with a single DNxHR HQ video stream of 3.000 seconds and no audio stream, and no separate audio file came down. |
| MXF OP1a ProRes and OP1a H.264 export presets | Not tested yet | Not tested for this format. |
| Camera and broadcast MXF | Not tested yet | We had no MXF from a camera or broadcast system, so XDCAM, P2, XAVC, AS-11, interlaced video, multichannel audio and big files are Not tested yet. |
| Import button with a file chooser | Not tested yet | In our automated browser the Import button opened a file picker we could not fill, so we added files by dropping them into the editor. Not checked by hand. |
| Phone screen (390 px wide) | Not tested yet | Not tested for this format. |
Our test file open in the video editor on anyedit.app, 2026-10-19