MP4 to MP3 Converter
Extract high-quality audio from any video. Whether it's a downloaded movie, a music video, or a recorded lecture—turn that MP4 into a lightweight, portable MP3 in seconds. 100% free, 100% online.
Paste the URL of a video hosted online (YouTube, Dailymotion, etc.) to convert it to MP3.
Why Convert MP4 to MP3?
📦 Shrink File Sizes
Video files are massive. A 10-minute 1080p video can be 500MB+. Extract just the audio track (the MP3) and you're looking at maybe 10MB. That's a 50x reduction. Perfect for saving storage on your phone or fitting more music on that old USB stick.
🎧 Listen Anywhere
An MP3 file plays on literally every device ever made. Your grandma's flip phone? Supports MP3. Your 15-year-old car stereo? Supports MP3. Your fancy new AirPods? Definitely supports MP3. It's the universal language of audio.
🏃 Workouts & Commutes
Need that motivational speech from a YouTube video for your morning run? Convert the MP4 to MP3 and load it onto your Garmin watch. No video buffer, no data drain, just pure audio motivation.
📚 Study & Lectures
Recorded your professor's 2-hour lecture as a video? Convert it to MP3 so you can listen while commuting or cooking. Replay that tough concept at 2x speed without burning mobile data on video streaming.
How to Convert MP4 to MP3
- 1 Find Your Video Source
Whether it's on YouTube, Vimeo, or hosted on any URL—copy the link to that video.
- 2 Paste & Select MP3
Paste the URL into our converter above. Make sure "MP3" is selected as your output format.
- 3 Download Your Audio
Click "Start", wait a few seconds for our servers to extract the audio, then hit "Download MP3".
Common Questions
What is the quality of the extracted MP3? ▼
We extract audio at the highest bitrate available from the source, typically 128-320kbps depending on the original upload quality.
Can I convert local MP4 files from my computer? ▼
Our online tool works with video URLs. For local files on your hard drive, you'd typically use desktop software like VLC or FFmpeg. We're focused on online video sources.
Is there a limit to how many videos I can convert? ▼
Nope! Convert2MP3 is completely free with no daily limits. Convert as many videos as you need.
Looking for other tools? Try our Video to MP3 Converter or go to the main YouTube to MP3 Converter.