YouTube Audio Downloader: Save Sound Only
Sometimes you don't need the video — a podcast, a music track, a lecture's narration. Downloading audio-only saves up to 90% of the file size and is perfect for listening on the go.
xi extracts the audio track from any public YouTube video and hands you an MP3. No apps, no accounts.
Audio extraction is where online tools shine: the file is small, the conversion is fast, and you don't need any software. xi pulls the best audio stream YouTube offers and packages it as a universally compatible MP3. Whether it's a podcast, a lecture, or a song, you get clean audio in seconds — no Audacity, no ffmpeg command line, no hassle.
How to do it — step by step
Tips
- Audio files are tiny compared to video — ideal for phones with limited storage.
- MP3 plays everywhere: car stereos, smart speakers, old MP3 players, everything.
- For the best quality, pick the highest-bitrate MP3 option offered.
- Building a playlist? Download tracks as MP3 and import them into your music app in bulk.
Common mistakes to avoid
- Downloading the full video when you only need audio — MP3 is roughly 10x smaller than MP4.
- Expecting lossless quality — YouTube audio is compressed at the source; the MP3 reflects that.
- Using online 'converters' plastered with fake download buttons — use a clean tool with direct delivery.
- Forgetting about long videos — a 3-hour podcast takes a while to process; be patient.
- Renaming files carelessly — include the title so your audio library stays searchable.
Frequently asked questions
What's the difference between MP3 and other audio formats?
MP3 is universal — every device plays it. Some tools offer M4A or Opus at slightly better quality, but MP3 is the safe choice for compatibility.
How much smaller is audio vs video?
Roughly 10x smaller. A 5-minute 1080p video (~100 MB) becomes a ~5 MB MP3.
Can I get audio from age-restricted videos?
No — age-restricted content requires login, so neither video nor audio can be extracted.
Does it work for YouTube Music links?
It works for regular YouTube video links. YouTube Music app links that point to the same video ID usually work too.
Is there a length limit?
Very long videos (several hours) take longer to process but generally work. Be patient on slower connections.
After downloading audio
- Import into your podcast or music app for offline listening.
- Normalize volume across tracks if you're building a playlist.
- Tag files with title info so they're searchable.
- Delete the source video link from your notes — you have what you need.