How to convert a Facebook video to MP3 and keep just the audio
Short answer
Copy the Facebook video's or Reel's link, paste it into SnapVidBox's Facebook to MP3 page and tap Render & download on the 128 kbps MP3; the server converts the sound in a few seconds. Facebook usually stores sound below 128 kbps, so the 256 and 320 kbps files are larger without sounding better. The M4A row is the original track and downloads at once.
To convert a Facebook video to MP3, copy the video's or Reel's link, paste it into the Facebook to MP3 converter on SnapVidBox and tap Render & download next to one of the MP3 rows at 320, 256 or 128 kbps. Our server converts the video's own sound in a few seconds and the MP3 downloads like any other file. If you would rather have the sound exactly as Facebook stores it, the "M4A · Audio only" row downloads at once with no conversion.
Facebook has no button for saving only the audio of a video. Saving a post keeps a bookmark in your account, which needs the app and a connection every time you want to hear it. A file is different: it plays offline, in any music app, on a walk or in the car, long after the post has scrolled out of your feed.
The steps are the same on an iPhone, an Android phone and a computer, with no app to install, no account and no daily limit. This guide walks through them, explains which of the audio rows to pick, and covers the posts that cannot be converted and why.
What you need
- A public Facebook video, Reel or Watch video. Posts shared with friends only, videos in private groups and Stories cannot be fetched from this page.
- Any browser: Safari or Chrome on a phone, or Chrome, Edge, Firefox or Safari on a computer.
- A player for the file. Every phone and computer plays MP3; the M4A plays on iPhone, Android, Windows and Mac too.
- Nothing else. There is no Facebook login on SnapVidBox, so you never type your password into the site.
Step 1: Copy the video's link
In the Facebook app, open the video or Reel, tap Share and choose Copy link. On a computer, click Share under the video and copy the link there, or open the video on its own page and copy the address bar.
All the usual forms of link work: facebook.com/…/videos/…, facebook.com/reel/…, Watch links, facebook.com/share/… links from the Share button, and short fb.watch links. The link has to point to one video. A link to a playlist or a Page's list of videos returns "That link is a list of videos. Paste the link to one video." Open one of the videos and copy its link instead.
Step 2: Paste it into the Facebook to MP3 page
Open the Facebook to MP3 converter, paste the link into the box with the Paste button or Ctrl+V (Cmd+V on a Mac), and tap Download. The browser may ask once whether the site may read the clipboard.
After a few seconds a result card appears with the video's cover and title. On this page the audio rows come first, so the files you want are at the top. The Facebook video downloader lists the same files with the video rows first.
Step 3: Choose MP3 or M4A
The first three rows are "MP3 · Audio only" at 320, 256 and 128 kbps, each with a blue Render & download button. When you tap one, our server fetches the sound from Facebook and converts it to MP3 as it goes; the button shows Preparing for a few seconds, then the download starts.
Below them is "M4A · Audio only", marked with its original bitrate. This is the sound track exactly as Facebook stores it, and its green Download now button saves it directly, with nothing converted. After that come the video files and "JPG · Cover image", in case you want them too.
M4A is the better copy, because nothing is re-encoded. Pick MP3 when an app, a car stereo, an older music player or a video editor asks for MP3 specifically.
Step 4: Pick a bitrate
As the tool page puts it, 128 kbps keeps everything in most Facebook sound. Facebook usually stores audio below that, so a 256 or 320 kbps MP3 is a larger file made from the same source and cannot sound better than it. Choose 320 only if a device or an app insists on it.
The MP3 sizes in the list start with "~" because they are estimates worked out from the video's length; the exact size is known only once the file is made. One minute of sound is about 0.96 MB at 128 kbps, 1.9 MB at 256 kbps and 2.4 MB at 320 kbps, so a 20-minute talk at 128 kbps comes to roughly 19 MB.
Only about two files can be prepared on the server at once. If both slots are taken you see "The server is busy preparing other files. Try again in a minute." Wait a moment and tap the row again, or take the M4A, which downloads directly and does not wait for the server.
Step 5: Find and play the file
On a computer the MP3 goes to the browser's Downloads folder. On Android it lands in the Download folder and shows up in your music app. On an iPhone, Safari saves it in the Files app, under Downloads, which sits in iCloud Drive unless you changed it to On My iPhone. Tap the file in Files to play it, or use Share to open it in a music or podcast app.
Photos does not hold audio, so on an iPhone the MP3 and the M4A stay in Files. Each file is named after the Facebook post, which keeps a folder of saved sounds easy to sort.
Which file to pick
- M4A · Audio only: the original sound, downloaded at once. The best choice for listening on a phone or a computer.
- MP3 · Audio only at 128 kbps: the safe default when something needs MP3. It holds everything in most Facebook sound and plays everywhere.
- MP3 · Audio only at 256 or 320 kbps: only when an app, a car stereo or an editor asks for a higher bitrate. On Facebook sound they sound the same as 128.
- MP4 · HD or MP4 · Standard: when you want the picture as well. HD is usually 720p and Standard usually 360p, both direct; taller sizes such as 1080p are made with Render & download. The PC guide covers the video files in detail.
On Android, iPhone and a computer
On Android, Chrome shows a notice when the file is saved; tap it to play the sound, or find it later in your file manager under Download. Most music apps pick up new MP3s there on their own.
On an iPhone, the file is in Files, under Downloads. If you also want the video in Photos, download the MP4 row, open it in Files, tap Share and choose Save Video; the iPhone guide shows each screen.
On a Windows PC or a Mac, double-click the file to open it in the default music player. The free VLC plays both MP3 and M4A if the built-in player does not.
Trimming the sound or making a ringtone
A video's sound often has an introduction or a closing you do not need. On a computer, the free editor Audacity opens MP3 and M4A files: select the part to keep, trim, and export once as MP3. Cut from the M4A when you can; every MP3 export loses a little detail, so saving an MP3 as MP3 again is the one way to make it sound worse than the original.
To use the sound as a ringtone on Android, pick the MP3 in Sound settings. On an iPhone it has to be trimmed to 30 seconds in a music-editing app first, the same way the TikTok ringtone guide shows.
Saving the sound from several videos
The site takes one link at a time, with no daily limit. There is no ZIP or download-all button: paste a link, start the MP3 or M4A, then paste the next one, and the earlier download keeps going in the background.
If it does not work
- "That Facebook video could not be fetched. Check that the post is public, then try again.": the video is shared with friends only, sits in a private group, or was deleted. Open the link in a private browser window; if the video does not play there without logging in, SnapVidBox cannot reach it either.
- A video in a public group that Facebook only shows after a login: use the Facebook private video downloader instead.
- A Story: Stories have their own page, the Facebook Story downloader, and the Story guide explains where to find the link.
- "That link is a list of videos.": open one video and copy its own link.
- "The server is busy preparing other files.": wait a minute and tap the MP3 row again, or take the M4A.
- Anything else: the link troubleshooting guide goes through the other causes one by one.
Music and copyright
The music in many Facebook videos is licensed for use on Facebook only. That licence covers playing it there, not copying it elsewhere. Keeping the sound of a public video to listen to yourself is ordinary personal use; uploading it again, putting it in your own videos or selling it needs the rights holder's permission, and Meta's terms do not allow using Facebook to infringe someone else's rights. When a video uses a commercial song, buying or streaming the song itself gives you a better copy anyway. The copyright guide goes into more detail.
How big each audio file is
Sizes grow with the length of the video. For one minute of sound:
| File | Bitrate | How it downloads | Size per minute | When to pick it |
|---|---|---|---|---|
| M4A · Audio only (original) | As Facebook stores it, usually below 128 kbps | Download now: direct, no conversion | Depends on the source; usually under 1 MB | The untouched sound for listening |
| MP3 · Audio only | 128 kbps | Render & download: converted on our server | About 0.96 MB | The default when something needs MP3 |
| MP3 · Audio only | 256 kbps | Render & download: converted on our server | About 1.9 MB | Only when something asks for it; sounds the same |
| MP3 · Audio only | 320 kbps | Render & download: converted on our server | About 2.4 MB | Only when something asks for it; sounds the same |
In short
Copy the video's or Reel's link, paste it into the Facebook to MP3 converter and take the M4A for the untouched sound or the 128 kbps MP3 for the widest compatibility. For Instagram, the Reels to MP3 guide works the same way.
Frequently asked questions
Can I convert a Facebook video to MP3 without an app?
Yes. Paste the video's link into SnapVidBox in any browser and pick an MP3 row. The conversion happens on our server; there is nothing to install and no account.
Do I have to log in to Facebook?
No. SnapVidBox never asks for your Facebook password. It works with public videos and Reels, the ones anyone can watch without being friends with the poster.
Is 320 kbps better than 128 kbps?
Not for Facebook sound. Facebook usually stores audio below 128 kbps, so a 320 kbps MP3 is a larger file that sounds the same. Pick 320 only if something requires it.
Which is better, M4A or MP3?
M4A, because it is the sound exactly as Facebook stores it, with no conversion, and it downloads at once. Choose MP3 when an app or a device only accepts MP3.
Where does the MP3 go on my iPhone?
Into the Files app, under Downloads. Photos does not store audio, so play it from Files or open it in a music or podcast app with Share.
Can I reupload the music from a Facebook video?
Only with the rights holder's permission. Music in Facebook videos is often licensed for use on Facebook only; outside it, keep the file for personal listening.
Related guides
How to download a private Facebook video: what can and cannot be saved
Save a Facebook video that asks you to log in, from a public group or behind the login wall, with just its link. What works, what never can, and why.
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How to save a Facebook video or Reel to your iPhone camera roll
Facebook has no download button for most videos, and Safari saves files to Files, not Photos. Five steps from a Facebook link to your iPhone camera roll.
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How to download a Facebook video on PC or Mac in HD and 1080p
Save a Facebook video or Reel on Windows or macOS from your browser, with no software: HD at once, 1080p made on our server, or just the sound as MP3.
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How to download a Facebook Story video before it disappears
Stories vanish after 24 hours and Facebook has no save button for other people's. How to find a story's link and save the video in up to 1080p, on phone or PC.
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Sources
- Terms of Service — Meta
- Copyright in General (FAQ) — U.S. Copyright Office
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