Online UniConverter supports convert MP4 videos to MP3 audio files easily. Just open this handy free video converter, drag MP4 files to the interface, then choose output format as MP3 from the Audio tab. Finally, click the Convert button and wait for downloading. Convert the file. Now your video is uploaded and you can start the MP4 to MPG conversion. If it is needed, change the output format to one of the 37 video formats supported. After that, you can add more videos for batch conversion. Step 3. FileProInfo's MP4 to MP3 converter is a great, free online tool that makes converting MP4 files to MP3 documents a breeze. The user-friendly interface is easy to navigate, and the conversion process is simple and straightforward. In just a few clicks, you can have your new MP3 document ready to go! Upload mp4-file (s) Select files from Computer Highlights of AnyMP4 Free MP3 Converter Online. Output Settings. You are able to adjust video/audio encoder and change settings like bitrate, sample rate and channel with this converter. Batch Conversion. Free MP3 Converter also provides a batch-converting feature to help you process multiple files at one time. No Size Limit Here are 2 steps to convert Facebook video to MP3: Step 1. Copy a video URL from Facebook and paste it into the search box of AmoyShare MP3 Converter. Step 2. Click Download and choose an MP3 audio format to convert. Here is a quick tip, AmoyShare MP3 Converter supports to find videos by searching keywords in the search box of MP3 Converter. Convert.online is an free online service, which allows you to download/convert your favorite videos to mp3, mp4, 3gp, webm. You can convert music from video-hosting sites including YouTube, Vimeo, Dailymotion, Metacafe, Facebook and more. Click the “Choose Files” button to select your 3GP files. Click the “Convert to MP3” button to start the conversion. When the status change to “Done” click the “Download MP3” button. Our mp4 to mp3 converter is very easy to user, there is no need to install any software of app. You can use our tool in any device, such as mac, windows, android, iphone, etc. The best mp4 video to mp3 audio converter online, free and easy to use. You can extract mp3 from any video format, such as mp4, avi, mov, etc. Convert your MP3 to MP4 video format using this tool by Video Candy. No additional software needed. MP3 to MP4 Online and free MP3 to MP4 converter . Add file Audio converter - online and free Step 1 - Select a file(s) to convert. Choose MP3 to MP4. MP3 to OGG. WMA to MP3. MIDI to MP3. AAC to MP3. MP3 to M4R. AMR to MP3. mzUmJ.