YouTube has gradually become one of the most popular audio websites that provides a wide range of interesting videos and audios online for users. It also offers a new platform for people around the world to share things around them. We might occasionally listen to a wonderful song and want to download it. But after we download it, we find the output file is not in the format of MP3 and can’t be easily played on other devices. At this time, I guess you are in urgent need to reading this guide to learn how to convert YouTube to MP3 online free.

Part 1: 5 Online YouTube to MP3 Converters

Many people prefers to converting YouTube videos to MP3 audio files online. Therefore, we’ve collected 5 online YouTube to MP3 converter sites to help you convert YouTube to MP3 online for free. You could check any of them below and then convert YouTube video to MP3 audio online freely.

1. Online Video Converter

Online Video Converter

Online Video Converter is a useful tool to easily download audio from Facebook, Vimeo, YouTube, Dailymotion, Instagram and so forth. It allows you to download audio in MP3 with HD audio quality. The YouTube to MP3 converter online supports to convert online YouTube to MP3, AAC, OGG and so forth.

2. YoutubeMP3

YoutubeMP3

YoutubeMP3 is a brand-new website that enables users to convert YouTube to MP3 online free. The operation is super easy that you can complete to convert YouTube to MP3 online in a few clicks. What you need to do is paste the YouTube link to the URL box and click convert button. YoutubeMP3 supports more output formats like MP3, MP4, AAC, M4A, F4V, etc.

3. Convert2mp3

Convert2mp3

Like most of YouTube to MP3 converter online free, Convert2mp3 doesn’t require you to download the software and register online but allows you to enjoy free services of it. It supports to export YouTube video to many audio formats like MP3 and video formats like MP4 and AVI. After you convert YouTube to MP3 online, you can also edit music tags like artist for the converted mp3 file.

4. ConvertMeMp3

ConvertMeMp3

ConvertMeMp3 is a free YouTube to MP3 converter online free that allows you to convert YouTube to MP3 online. With intuitive interface, you can quickly learn how to convert YouTube video to MP3 online free. All you need to do is enter YouTube URL and tap on "Download MP3".

5. ListenToYouTube

ListenToYouTube

ListenToYouTube can be counted as the most convenient YouTube to MP3 online converter. You don’t need to sign up or download the converter. Simply paste URL and Click "Go" button, the software will extract MP3 audio online from YouTube video. After that, you can download the MP3 file from the download link.

Part 2: How to Convert YouTube to MP3 Online with Online Video Converter

Online Video Converter is a versatile tool that allows users to download video from various video websites like YouTube, Facebook, Instagram, etc. It provides good solution to convert YouTube video to MP3 online.

1. Enter the website: https://www.onlinevideoconverter.com/mp3-converter .

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2. Paste the YouTube URL into the marked area in this YouTube to MP3 online converter and click "Format" to set the output format.

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3. Tap on "More Settings" to choose audio quality. You can also set the start time and end time of the audio to cut the audio.

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4. Click the "START" button to convert YouTube to MP3 online. After a few seconds, click the blue "Download" button or scan QR code to download YouTube audio.

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Part 3: How to Convert YouTube to MP3 Offline with Leawo Video Converter

Though we can convert YouTube to MP3 online, sometime the poor network might affect us to convert YouTube to MP3. So it is necessary to have a YouTube to MP3 converter offline. Now let’s me introduce two useful converters offline for you.

Leawo Video Converter is powerful software that is able to convert videos and audios between all popular formats like MP3, WAV, AAC, FLAC, etc. The software allows you to adjust the parameters of output audio files, including audio codec, quality, audio size, bit rate, audio volume and so on.

video-converter

Video Converter 

☉ Convert video and audio between all formats.
☉ Trim, Crop, Effect, Watermark to edit video.
☉ Support 2D to 3D conversion.
☉ Add external subtitle and select audio channel.

Download and install Leawo Video Converter on your computer. Now let’s learn how to convert YouTube Video to MP3 offline with Leawo Video Converter.

Step 1: Import YouTube file

Open the software, then click "Convert" at the top or click "Video Converter" to enter "Convert" panel. Click "Add Video" to upload YouTube video from your computer.

add-AC3-audio

Step 2: Set output format

Click the drop-down box next to "Add Photo" and choose "Change" to enter Profile panel.

Select  Output Format

And then click "Common Audio" to choose MP3 as the output format.

choose mp3 as output format

Step 3: Adjust the parameter of audio

Back to drop-down box and choose "Edit" to adjust sample rate, audio codec and bit rate of output MP3 file. After that, click "OK" in the lower right corner.

adjust parameters

Step 4: Convert YouTube to MP3 audio

Click the green "Convert" button to start to convert YouTube to MP3. You can choose destination folder in the pop-up sidebar. Then the software will start to convert YouTube video to MP3.

Convert AC3 files to MP4

If you’re using a Mac computer, you could turn to Leawo Video Converter for Mac. The operation of Mac Video Converter is quite similar to that of Windows.

Video Demo of How to Use Leawo Video Converter

How to Convert YouTube to MP3 Offline with Leawo Music Recorder

Leawo Music Recorder is easy-to-use tool to convert online YouTube to MP3. It supports to convert audios and videos in over 130 formats to MP3 and WAV output files. With this YouTube to MP3 converter, you can obtain audio with good sound quality by setting bit rate and sample rate. The software is capable of recording audio from multiple websites like YouTube, Instagram, Dailymotion, etc. No matter paid or free audio, Leawo Music Recorder can easily handle them.

music-recorder

Leawo Music Recorder 

☉ Record any sound from computer and microphone audio.
☉ Record from 1000+ music sites like YouTube, Facebook, etc.
☉ Schedule music recording via recording task scheduler.
☉ Automatically/manually add tags: artist, album, etc.
☉ Save recordings to either WAV or MP3 format.

Download and install Leawo Music Recorder. Now the following steps will guide you how to convert YouTube to MP3 offline with Leawo Music Recorder.

Step 1: Set output format

Click top-right drag-down box to invoke "Settings". Then go to "Format" to select MP3 as the output format and set audio codec, bit rate, sample rate.

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Step 2: Set output directory

Afterwards, navigate "General" to select the target output directory.

output settings

Step 3: Choose audio source

Click "Audio Source" at the top of settings panel. Since we need to convert YouTube audio, choose "Record Computer Audio" here.

choose-audio-source-1

Step 4. Start to convert YouTube to MP3

Prepare the YouTube video you need to convert. Click the recording button and then play YouTube video.

Record and download

Step 5. Add music tags for converted MP3 file

Converted MP3 music tags can be automatically added. However, you can right click the recording on the media panel and choose "Edit Music Tags" to add music tags like song title, genre, year and album.

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If you’re using a Mac computer, Leawo Music Recorder for Mac could help you easily convert YouTube to MP3 audio on Mac OS 10.6 and later.

Video Demo of How to Use Leawo Music Recorder