- 100% free
- No sign-up
- Up to 320 kbps
- Works on any device
What conversion means
What a YouTube converter actually does to a file
Nothing is “turned into” anything. One stream is kept, one is thrown away, and the survivor gets re-encoded.
An MP4 is a container holding two separate streams: a video track, usually H.264 or VP9, and an audio track, usually AAC or Opus. Ask a YouTube converter for audio and the picture track is simply deleted. The audio is re-encoded into MP3 so it can stand on its own.
That re-encode is the part worth understanding. The source was already lossy, so you are compressing something compressed once before — generation loss, in the jargon. On speech it stays inaudible, as long as the second pass is generous.
The size drop is almost entirely the video leaving. Ten minutes of 1080p runs around 100 MB; the same ten minutes as MP3 is roughly 24 MB at 320 kbps. Which is why download only audio from YouTube is such a common search: for a lecture, the picture is most of the file and none of the point.
“YouTube converter mp3 converter” and other odd phrasings
Search boxes are full of doubled-up phrases like that one, or “youtube link to audio”, or “youtube song converter”. They all describe one action: hand over a URL, get an audio file back. The paste box at the top is the whole tool.
If the phrase you typed was closer to youtube to mp3 converter, that page is the dedicated MP3 tool and goes much deeper on bitrate.
How to convert MP4 to MP3
If the MP4 lives on YouTube, you never need to download it twice. Paste the link above and pick the audio row — the video stream is dropped server-side, so only the MP3 crosses the wire.
A file already sitting on your drive is a different job. This tool reads links, not local files. VLC (Media → Convert/Save) or FFmpeg handles that one offline.
How to convert video to MP3
The rule holds whatever the container: a video file yields only as much audio quality as its soundtrack carries. A webinar recorded off a laptop mic sounds like a laptop mic at any bitrate.
So start from the original channel’s upload where you can. Archived livestreams are the slowest sources we handle, because their audio has to be stitched from a long recording.
Listen anywhere
Built for the places streaming fails
Offline audio is the difference between listening and buffering.
Format guide
What a YouTube audio converter should hand you
MP3, M4A, WAV — three formats cover almost every audio job. Here’s the comparison, and why this tool outputs the oldest of the three.
| Format | Plays on | Size, 10 min* | Choose it when |
|---|---|---|---|
MP3Our output Up to 320 kbps | Everything — car head units, e-readers, decade-old iPods, every OS, every browser. | ~24 MB | You want one file that plays anywhere, now and in ten years. |
M4A / AAC 256 kbps | Modern phones and desktops, native on Apple. Older car stereos and MP3 players often refuse it. | ~19 MB | Every device you own is recent and you count megabytes. |
WAV 16-bit / 44.1 kHz | Editing software and desktops. Technically plays on phones — at ten times the storage cost. | ~106 MB | You’re editing the audio and need an uncompressed working copy. |
*Ten minutes of stereo audio at each format’s listed setting.
M4A is the better codec on paper — same file size, slightly more detail, which is why Apple uses it everywhere. WAV is a workbench format for editing. MP3’s case is simpler: its patents expired in 2017, so every device maker on earth ships a decoder.
The efficiency argument barely applies anyway. Streamed video carries audio at roughly 128–160 kbps, fixed at upload, so M4A’s headroom has nothing left to preserve and 320 kbps invents no detail — it just makes sure the conversion throws none away. The YouTube to MP3 page has the full codec and bitrate breakdown if you want it.
Offline workflow
From link to library, properly
Downloading is step one. These four take a loose file in a downloads folder to a library that sorts itself.
Want the picture? The video downloader saves the same links as MP4.
Step 1
Download the MP3
Paste your link above, then press Convert on the audio row — one MP3 carrying the best track the source has. It lands in your downloads folder named after the video, and that name becomes the track title in most players.
Tip: Saving a lecture series? The playlist downloader page shows the quickest way through one.
Step 2
Tag and rename
Set the artist field to the speaker or channel and the album field to the series name — players sort by tags, not filenames. A free tagger like Mp3tag on Windows or Kid3 anywhere else edits a whole folder in one pass.
Tip: Keep one filename pattern — “Speaker – Talk title” — so files stay sorted on devices that ignore tags.
Step 3
Drop it into a player
Anything that reads local files works: VLC, foobar2000, Apple Music, Plex. Point the player at a single “Audio” folder once and every future download shows up on its own.
Tip: A podcast app that imports local files — AntennaPod, say — remembers your position in a two-hour recording.
Step 4
Sync to your phone
On Android, copy the folder over USB or let a synced cloud folder do it. On iPhone, download in Safari and files land in the Files app. An hour at 320 kbps is about 144 MB, so a modest phone carries a semester of lectures.
Tip: Or skip the sync — this page works the same in mobile Safari and Chrome.
Audio downloads by the numbers
- maximum bitrate — the ceiling the MP3 format allows
- 320kbps
- per ten minutes of audio at 320 kbps
- ~24MB
- browser-based — no app, no extension, no account
- 100%
Pick the right tool
Which converter you actually want
Audio is one job among several, and the wrong page costs you a re-download.
The dedicated MP3 page: built around music, with the full bitrate breakdown.
Keep the picture. Same paste box, video rows instead of the audio row.
We don’t batch a playlist in one click; that page shows the fastest way through one, link by link.
The general-purpose saver, 360p up to 1080p.
The three-step walkthrough, phone and laptop differences included.
The trust page: what we store, and how the sketchier converter sites make their money.
Personal use, and where the line sits
Downloads from this page are for personal, non-commercial use. Your own uploads, Creative Commons material, and anything you hold a licence for are yours to save. Copyrighted music you don’t have rights to is not. Rights holders can reach us through the DMCA page.
The limits, plainly: we resolve a link, show the formats a source offers, and hand over a signed download. No account, no extension, no watermark, nothing installed, 1 GB per file. Playlists come one video at a time, and ID3 tags ship empty until automatic tagging lands. Paste a link, take the audio row, and this YouTube converter gives you a file that will still open on a phone you haven’t bought yet.
FAQ
Audio questions, answered
The practical ones, and the awkward ones.
Related tools
More ways to save
Every NoTube tool shares the same engine — paste a link, pick a format, done.
Your next listen, offline
Paste a link, take the audio row, save the MP3. Free, no account, about ten seconds end to end.