Masterchannel Alternative: Free Online Mastering
Published · by Loopin
Masterchannel is a good hands-off masterer, but its free tier is built around previews, not downloads. If you need a finished WAV today without a plan, test a free masterer against it on the same mix, level-matched, and let your ears pick.
Know what you'd be giving up first
Be fair to Masterchannel before you leave it. At the time of writing (October 2026) it's a reinforcement-learning masterer that reads the genre influences in your track and refines the master without asking you to set anything, and it offers a mode modelled on the work of Grammy-winning engineer Wez Clarke. If your music sits between genres, that genre-blending read is its real strength — independent reviews single it out for exactly that.
The trade-off is control. Reviewers describe the standard workflow as deliberately hands-off: no style picker, no parameter tweaks, no reference matching. If you like that, keep it. If you want to steer the sound, that's the first reason to look elsewhere.
Check the free tier against what you actually need
At the time of writing, third-party reviews describe Masterchannel's free plan as unlimited uploads and previews with a small monthly cap on WAV downloads, and paid options per track or as a monthly unlimited plan. Those numbers move, so open the pricing page and check two things: how many full downloads you get free this month, and what resolution they are.
If you release one song a quarter, the free cap may be enough. If you're finishing an EP, stacking beats for a tape or re-mastering after every mix note, a download cap becomes the bottleneck fast. That's the case where a free, unlimited option earns its place.
Run the same mix through both, level-matched
Export one mix, peaking around −6 dBFS with no limiter on the master bus. Master it in Masterchannel and master the same file free on Loopin, picking the feel that suits the genre: Punchy for rap and pop, Warm for soul and acoustic, Club for dance.
Now turn the louder one down until both hit the same loudness before you judge. A master that's 1 dB louder wins a casual listen every time, so an unmatched comparison tells you nothing. Loopin's Original-vs-Mastered switch is already loudness-matched, which makes the first half of this test honest by default.
Listen for three things, in this order
First, the low end: does the kick still hit and does the bass hold its note, or has one master smeared them together? Second, the vocal: is it forward without turning sharp on the S and T sounds? Third, the loudest chorus: does it still breathe, or does the limiter pump when everything comes in?
Whichever master wins two out of three is your master for this track. Don't pick a service for life on one song — a genre-blending track might favour Masterchannel while a straight-ahead rap mix might favour a tighter feel elsewhere.
Pick a loudness on purpose
Loopin's default export is a 16-bit WAV at about −14 LUFS with a −1 dBTP ceiling, which is where Spotify and YouTube normalise to. Punchy lands near −11 LUFS and Club near −10 for genres where that density is part of the sound; Cinematic sits around −16 for quieter, dynamic material.
Whatever you use, don't chase the loudest number. Streaming turns loud masters down, so the extra limiting only costs you punch. If you want the reasoning, free vs paid mastering breaks down what money actually buys.
Know when neither is the answer
If the vocal is buried or the low end is a mess in the mix, no automated masterer fixes it — Masterchannel included. Pull the mix back up, fix the balance, then master again. You'll get more from one mix fix than from ten master re-runs.
For everyday releases, demos and beat tapes, run it through the free masterer, A/B it, and move on. Save paid plans for the tracks where the comparison genuinely tells you it's worth it.
Frequently asked questions
Is Masterchannel free?
At the time of writing (October 2026), Masterchannel has a free plan with uploads and previews, but full WAV downloads are capped each month per third-party reviews. Check its pricing page for the current cap and paid plans.
What is a free alternative to Masterchannel?
Loopin Mastering is free and unlimited with no sign-up. It takes MP3 or WAV, offers eight feels, and exports a 16-bit WAV at about -14 LUFS with a -1 dBTP ceiling.
Is Masterchannel good?
Yes. Reviewers rate its genre-aware, hands-off approach, and it's especially good on tracks that blend styles. The trade-off is that you can't steer it much in the standard workflow.
Does Loopin do reference matching like some masterers?
No. Loopin lets you choose one of eight feels and A/B the result loudness-matched. To compare against a reference, level-match a released song yourself and switch between them.
How do I compare two AI masters fairly?
Match loudness first, within about 0.5 dB. Then check low end, vocal and the loudest chorus in that order. The louder master always sounds better unmatched, so never judge before matching.
What LUFS should my master be for Spotify?
Around -14 LUFS integrated with a true peak of -1 dBTP. Spotify recommends -2 dBTP if your master is louder than -14 LUFS.