MP3
Plays everywhere. At 320 kbps it takes about 2.4 MB per minute, and most people can't tell it from the master.
MP3 to Link
Upload an MP3, WAV or voice memo and send a link that plays the original file at its full bitrate. Nothing gets squashed into a voice note.
- No signup to download
- Link lasts 24 hours
- Hidden from search engines
Drop an audio file here
MP3, WAV, M4A, FLAC, AIFF, OGG · up to 2 GB
Will it go through?
About 40 MB. Too big for every app here. A link takes up to 2 GB.
4 min
Discord10 MB
30 MB overWhatsApp16 MB
24 MB overOutlook20 MB
20 MB overGmail25 MB
15 MB over
How to turn an MP3 into a URL
1.Pick the file
Drag it onto the box above or choose it from your files. It plays right there so you can check it's the right mix.
2.Get the link
Tap Generate Link. A song takes a few seconds and an hour-long WAV takes a minute or two.
3.Send it
Paste the link into a DM, an email or a group chat. The listener presses play on the page, or downloads the exact file.
The mix they hear is the mix you made
Messaging apps turn audio into low-bitrate voice notes, which is fine for a voice message and bad for a master. A link delivers the original file. Your 320 kbps MP3 stays 320 kbps and a 24-bit WAV stays 24-bit. The track plays right on the page, with a Download button for the original file. The listener doesn't need an account.
master-v3.wav
WAV · 47 MB · expires in about 23 hours
What each app does to your audio
WhatsApp16 MB
16 MB as an audio message. Sent as a document, the original goes through, up to 2 GB.
Discord10 MB
10 MB on the free plan: about four minutes of 320 kbps MP3, or under a minute of WAV.
Messenger25 MB
25 MB per file.
Gmail25 MB
25 MB per email, which is about two and a half minutes of CD-quality WAV.
Outlook20 MB
20 MB in Outlook.com, then it offers a OneDrive link instead.
Slack1 GB
Plays audio inline up to 1 GB, but only for people in your workspace.
Audio sizes at a glance
How big each kind of audio is per minute, and how much of it fits in a 25 MB email compared with one free 2 GB link.
| Format | Size per minute | Fits in an email | Fits in one link |
|---|---|---|---|
| Voice memo (AAC) | 469 KB | 54 min 36 s | 74 h 33 min |
| MP3 · 128 kbps | 938 KB | 27 min 18 s | 37 h 16 min |
| AAC · 256 kbps | 1.8 MB | 13 min 39 s | 18 h 38 min |
| MP3 · 320 kbps | 2.3 MB | 10 min 55 s | 14 h 54 min |
| FLAC · CD quality | 5.7 MB | 4 min 22 s | 5 h 57 min |
| WAV · 16-bit 44.1 kHz | 10 MB | 2 min 28 s | 3 h 22 min |
| WAV · 24-bit 48 kHz | 16 MB | 1 min 31 s | 2 h 4 min |
Stereo bitrate maths (kbps ÷ 8 × 60 per minute). FLAC depends on the music and is usually 50–70% of the WAV.
What to know about each format
WAV
Uncompressed, at about 10 MB per minute for CD quality. The standard for masters, stems and anything going to a mixing engineer.
M4A
What iPhone Voice Memos and Apple Music use. It plays on Apple devices, Android and Windows 10 and later.
FLAC
Lossless and about half the size of WAV. Android and desktop players open it. On an iPhone, the Files app plays it but some music apps don't.
Several tracks
One link holds one file. Zip an EP or a set of stems together first.
Make a ZIP
When a link isn't the right tool
A link is how you hand someone a track. Releasing one is a different job.
A player that stays up
The track plays on the link page for a day. For a player on your website or profile, use SoundCloud or Bandcamp.
A podcast feed
Links expire after 24 hours, so they can't sit in an RSS feed. Use a podcast host for that.
Demos for clients and labels
BulkShare Pro sends from your own domain, keeps links up for as long as you choose and tells you when someone downloaded the track.
See Pro
Turn other files into a link
MP3 to Link questions
Upload the MP3 on this page and tap Generate Link. You get a share link with a player and a Download button, plus a direct audio URL that opens the MP3 itself.
Send the next one
from your domain.
Start a 7-day free trial — card required. Add your domain when the next project ships.
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