Hear your song mastered
Flip between your mix and the mastered versions in sync, so the lift is easy to hear right away.
Online MasteringThat SoundsRelease-Ready
Upload your song, hear the master for free, adjust the options, and flip between versions seamlessly. Pay only if you like the result.
Shape the master
Start with the three default masters we create for you, then fine-tune the version that fits best.
Download the final master
When it sounds right, download the release-ready WAV and MP3 straight away.
Testimonials
“I could hear the lift right away. Modern kept the vocal front and clear, then one tiny tweak opened the chorus without making it brittle.”
Built for better-sounding online mastering, not just louder output.
The goal is more clarity, energy, and confidence while keeping the character of your mix intact.
Built from your finished mix
The master starts from the tone, balance, and punch already in your mix instead of forcing a generic finish.
Pushes where it helps
Loudness, density, and polish are pushed only where the song benefits, so the result stays open and musical.
Made for real playback
The finished master is shaped to feel solid across everyday listening without losing the character of your mix.
How it works
Analyze. Shape. Render.
Upload a finished mix, hear three starting masters, then compare and refine the one you want to keep.
Analyze
The engine reads tone, punch, width, and balance so the master starts from what your mix actually needs.
Shape
It renders three preview families with clearly different depth, density, and finish choices so you can hear a real spread fast.
Render
Choose the direction that fits, compare your mix against the master in sync, then render the version you want to keep.
Mastering options
Start with three default masters. Then shape the one you keep.
Modern, Open, and Impact give you three strong starting points. The controls below refine the version you chose instead of switching between defaults.
Modern default
The broad default for polish, balance, and a modern sound that plays well across systems.
Open default
More depth, more breathing room, and less loudness pressure.
Impact default
The denser option for more punch, edge, and excitement.
Go past the default.
Fine-tune loudness, stereo width, bass, presence, air, and harshness control before you render another version.
FAQ
The questions that matter most for a better master.
Clear answers on file prep, compare playback, delivery, and how the preview masters differ.
What is online mastering?
Online mastering is a browser-based, automated way to take a finished mix, analyze it, shape the tone and dynamics, and deliver a more polished release-ready version without booking a traditional attended session.
What file should I upload for mastering?
Upload your best stereo mix with enough headroom and no clipping. This workflow accepts MP3, WAV, FLAC, AIFF, M4A, and AAC audio files, but a high-quality WAV or other lossless file will usually give the mastering chain more to work with.
Can I hear the master before I download it?
Yes. The player is built for synced A/B playback, so you can hear your original mix against the mastered version before choosing the final files.
Which formats do I receive?
The delivery flow is designed around a high-quality WAV master plus a 320 kbps MP3 for quick playback and sharing when the MP3 render is ready.
What is the difference between the preview families?
Modern is the broad default, Open gives more breathing room and depth, and Impact pushes density and punch harder. They are different finishing directions for the same mix.
Is this right for a finished mix?
Yes. Use it when your mix is finished and you want a polished, release-ready result. The compare flow helps you judge the change quickly, and the final WAV and MP3 delivery make it practical for release prep.
Pricing
Choose the access that fits how you master.
Unlock one song when you need it, or keep every master downloadable with Unlimited access.
Promo pricing ends on International Jazz Day, April 30
HD WAV masterHigh-quality delivery for release, archive, and final handoff.
MP3 master320 kbps delivery for quick playback and easy sharing.
Access anytimeCome back anytime to preview this master, choose formats, and download from your library.
Unlimited masters & downloadsMaster and download as many tracks as you want, with no extra fees.