Facebook to MP4 takes one step: paste an FB video or Reel link in the box above, pick HD or SD, and the MP4 downloads straight to your phone or computer — online, free and with nothing to install. Facebook already stores its videos as MP4, so nothing has to be converted: the downloader finds the MP4 files Facebook published for that link and hands you the one you choose.
What "Facebook to MP4" really means
Most "converters" imply a video is turned from one format into another. Here there is no other format to start from. When a video is uploaded, Facebook makes complete MP4 files of it — an HD one and a lighter SD one — alongside the separate picture and sound streams its own player uses. The MP4s are what you get: the same file Facebook would play, with its sound built in, and nothing to join afterwards.
That is also why the download is fast and the quality untouched. Nothing is decoded, compressed again or stamped with a logo; the file simply moves from Facebook's servers to your device.
What is inside the MP4: H.264 or AV1
An MP4 is a container, and what matters for playback is the video format inside it. We opened the files Facebook serves to check. The SD file was H.264 every time — the format every phone, computer and editor plays. The HD file is usually H.264 too, but for some newer videos Facebook encodes HD in AV1, a more efficient format that older devices cannot decode. The sound is AAC in both.
You cannot tell from the outside which one a video uses, and for those videos Facebook offers no H.264 HD at all — the SD file is the only H.264 version that exists. So if an HD download refuses to play, the fix is in the next section rather than in downloading again.
If the HD MP4 will not play
An HD file that downloads fully but shows a black screen, or plays sound with no picture, is almost always AV1 on a device that cannot decode it:
- iPhone and iPad: AV1 plays on iPhone 15 Pro and newer. On older iPhones, take the SD file, or play the HD one in VLC.
- Mac: Macs with an M3 chip or newer play AV1; older Macs need VLC or a browser such as Chrome or Firefox.
- Windows: install the free AV1 Video Extension from the Microsoft Store, or use VLC, Chrome, Firefox or Edge.
- Android: most phones from the last few years play AV1; if yours does not, VLC for Android will.
A file that will not open at all is a different problem: the download stopped early. Fetch it again on a steady connection.
Why nothing is re-encoded
Converting a video means decoding it and compressing it again, and every round of compression throws detail away. Because Facebook's file is already an MP4, re-encoding it would make the download slower and the picture slightly worse, for nothing. You receive the same file Facebook's own player streams, which is also why no watermark is added and no logo appears in a corner.
Turning an AV1 file into H.264 would be a real conversion with that same cost, which is why the honest answer for an older device is the SD file rather than a re-encode.
HD or SD: which MP4 to choose
Most videos come in two MP4s: HD, which is 720p, and SD, usually 360p. Facebook keeps a 1080p version of many videos only as separate picture and sound streams for its own player, never as a single MP4, so a site promising "Facebook to MP4 in 1080p" or 4K is either joining those streams or promising something it does not deliver. The list shows the size of each file before you commit.
HD is the right choice for a large screen or for editing; SD saves data and storage and plays everywhere. If SD is the only option, the upload itself was small — the video downloader page explains why that happens and what the file sizes look like.
MP4 or MP3?
An MP4 keeps the picture and the sound. If you only want the audio of an interview, a song or a lecture, choose Convert to MP3 instead: the file is a fraction of the size and plays in any music app, offline. Facebook to MP3 covers the audio quality to expect.
Using the MP4 in a video editor
An H.264 MP4 imports straight into CapCut, iMovie, Premiere Pro, DaVinci Resolve and Final Cut, with no conversion step. An AV1 file needs a recent version of the editor and, in some, a recent computer; if yours refuses it, use the SD file or convert the HD one on your own computer with a free tool such as HandBrake. Either way the video keeps the shape it was posted in: Reels are vertical 9:16, most feed videos are 16:9 or square, and the frame rate is the one the uploader recorded.
Saving the MP4 on iPhone, Android or a computer
On Android, Chrome and most other browsers save the MP4 to the Downloads folder, and the gallery picks it up shortly after. On Windows, macOS and Linux the file lands in your browser's download folder, usually Downloads. Nothing needs installing, and the same page works on a tablet.
On an iPhone, Safari saves the MP4 to the Files app, under Downloads. Open it there, tap Share and choose Save Video to move it to Photos. The mobile guide covers what changes in Chrome and Firefox on iOS.
Why the file name is a number
The MP4 comes straight from Facebook's servers, and Facebook names the file — usually a long run of digits rather than the video's title. If you are saving several videos, rename each one as soon as it lands: a name you chose is the only way to tell them apart in a folder later.
What cannot be saved as MP4
The video has to be public. A video shared with friends only, posted in a private group or on a private profile needs a login that is allowed to see it, and this site never asks for yours; if you can already watch it yourself, the private video downloader saves it from the page your own browser has. A live broadcast that is still running has no finished file yet — wait until it ends — and a deleted video or a link to a profile rather than a video has nothing behind it to save.