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How to Convert YouTube Videos to MP3 (Free Online)

Want just the audio from a YouTube video — a song, a podcast clip, a lecture? Here's how to get an MP3 in your browser, no software to install.

Steps

  1. Copy the YouTube video's URL — from the address bar or the Share button.
  2. Paste it into Stelluna's Video Downloader and hit Download.
  3. Select "MP3 (Audio Only)" from the format list.
  4. Download — the audio file saves directly to your device.

Need the video instead? The same tool downloads full MP4 in up to 1080p.

Open Video Downloader

Video quality options

Besides MP3, you can download the full video at 1080p, 720p, or 480p — pick whichever fits your connection or storage. The tool automatically falls back to the best available quality if a specific resolution isn't offered for that video.

FAQ

Is there a length limit?

No hard limit, but very long videos (multi-hour livestreams, for example) will naturally take longer to process.

What audio quality do I get?

The tool grabs the best audio stream YouTube provides for that video and converts it to MP3.

Is this free?

Yes — no account, no watermark, no subscription.

Is it legal to convert YouTube videos?

Only download content you own or have the right to use for personal purposes — downloading copyrighted music or videos for redistribution isn't permitted.

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