Drop in your mix
WAV, FLAC, MP3, AIFF, M4A or OGG, up to 768 MB per file. Your own mix, not a loop pack.
FREEAutomatic mastering
Online mastering. Hear it before you pay.
Intrect Mastering is a hosted online mastering service. Upload a mix in WAV, FLAC, MP3, AIFF, M4A or OGG, listen to a free 60-second before/after of its loudest section, then master the full track for $3.00 and download WAV, FLAC and MP3. Every master stays under a −0.5 dBTP true-peak ceiling. Your first full master is free.
Free 60 s preview
Flat price per track
First full master free
$3.00per track
- Preview: free, a few per day per account
- Your first full master: free, one per account
- Full track: WAV 44.1 kHz 16-bit, FLAC, MP3 320 kbps
- Several tracks: up to 25% off per track in one order
How it works
Listen first. Pay only for the tracks you keep.
Your account balance is only used when you press Master on a finished preview.
A/B the loudest minute
We analyse the whole track and give you a 60-second before/after of its loudest section, usually within one to two minutes.
FREEGet the full master
Happy with the preview? Master the full track and download it as WAV, FLAC and MP3.
$3.00 / TRACKPricing
Flat per track, cheaper in batches.
Master several previews in one order and every track in that order gets the discount.
| Tracks in one order | Discount | Per track |
|---|---|---|
| 1 | — | $3.00 |
| 2–4 | 10% | $2.70 |
| 5–9 | 20% | $2.40 |
| 10–20 | 25% | $2.25 |
Your first full master is free (one per account); in a larger order, the other tracks are priced as an order of their own size. Up to 20 tracks per order. Mastering is paid from your Intrect credit. A plan's monthly credit is spent first, then any prepaid credit. If a job fails you are not charged.
What you get
A release-ready level that fits the song.
Dense mixes are mastered loud, around −8 LUFS integrated. Every master stays under a −0.5 dBTP true-peak ceiling, and the dashboard shows the loudness it measured. Preview clips are MP3 for listening; downloads are the full-quality files.
Streaming services play a track back at their own level, not the one you deliver. Spotify adjusts tracks to −14 LUFS and turns louder masters down, so a master near −8 LUFS plays about 6 dB lower there than the file you download. Its own mastering guidance is −14 LUFS integrated with true peak below −1 dBTP, and below −2 dBTP for masters louder than −14 LUFS. Our −0.5 dBTP ceiling is higher than that, so if Spotify is where most people will hear the track, compare the true peak the dashboard reports with that guidance. Spotify page read October 20, 2026.
| Spec | Intrect Mastering |
|---|---|
| Input | WAV, FLAC, MP3, AIFF, M4A or OGG, up to 768 MB per file |
| Output | WAV 44.1 kHz 16-bit, FLAC and MP3 320 kbps |
| Loudness | Dense mixes around −8 LUFS integrated; the dashboard shows what it measured |
| True peak | At or below −0.5 dBTP |
| Preview | Free 60-second before/after of the loudest section, usually within one to two minutes |
| Where it runs | In your browser at app.intrect.io; nothing to install |
| Price | $3.00 per track, less in batches; first full master free |
FAQ
Pricing, formats and loudness, answered.
- How much does Intrect Mastering cost?
- A flat $3.00 per track. Your first full master is free, one per account. Mastering several tracks in one order costs less per track: 2–4 tracks get 10% off ($2.70 each), 5–9 get 20% off ($2.40) and 10–20 get 25% off ($2.25), with up to 20 tracks per order.
- Can I hear the master before I pay?
- Yes. Upload a mix and you get a free 60-second before/after of its loudest section, usually within one to two minutes. Previews are free, a few per day per account, and your account balance is only used when you press Master on a finished preview.
- Which file formats can I upload and download?
- You can upload WAV, FLAC, MP3, AIFF, M4A or OGG, up to 768 MB per file. The full master downloads as WAV 44.1 kHz 16-bit, FLAC and MP3 320 kbps. Preview clips are MP3 for listening.
- How loud does Intrect Mastering make a track?
- Dense mixes are mastered loud, around −8 LUFS integrated, and every master stays under a −0.5 dBTP true-peak ceiling. The dashboard shows the loudness it measured. Spotify adjusts tracks to −14 LUFS and turns louder masters down, so a master near −8 LUFS plays about 6 dB lower there (Spotify's loudness page, read October 20, 2026).
- Am I charged if a job fails?
- No. If a job fails you are not charged. Mastering is paid from your Intrect credit: a plan's monthly credit is spent first, then any prepaid credit.
- Do I need to install anything?
- No. Intrect Mastering runs in your browser at app.intrect.io/mastering. It is a hosted service, not a plug-in.
- Can I master a Suno or Udio song?
- Yes. Upload the exported WAV or MP3 like any other mix. If the track has metallic or shimmering artifacts, clean them first with de-artifact, because mastering makes them louder along with the rest of the mix.
Last reviewed October 2026.