# What is an online YouTube to MP3 converter?

It is a browser workflow that loads a YouTube source URL and exports audio in MP3 format for universal playback and lightweight sharing.

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Last modified: 2026-05-30T00:00:00+00:00

**What**
An online YouTube to MP3 converter extracts audio from a YouTube source and exports it as an MP3 file.

**How**
Open [Online YouTube to MP3 Converter](/tools/convert-video-format/online-youtube-to-mp3-converter), paste a YouTube URL, load the source in Step 2, then convert to MP3.

**Why**
MP3 is the most broadly compatible compressed audio format for phones, desktops, and quick sharing.

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