Guide · Choosing a mastering workflow
A hands-on BandLab mastering alternative
BandLab offers genuinely free mastering with 4 presets. Choose direct controls, not a promise of better sound.
Published 22 Oct 2026
What BandLab gives you free
BandLab's free mastering includes Universal, Fire, Clarity and Tape presets. You can download masters as WAV or MP3 files. Its dedicated mastering tool asks you to upload your finished mix. You can also master existing projects from BandLab Studio or your Library. That makes it useful when you want a quick starting point without building a chain.
BandLab also documents input gain, which changes the level fed into mastering. Its guide does not clearly specify that control's free-tier availability. Do not read preset-led as completely unadjustable. Pro adds Natural, Cinematic, Spatial and Punch presets, plus Light, Normal and Heavy intensity settings. Max adds mastering EQ and reference mastering. EQ changes the balance of bass, middle and treble frequencies. Reference mastering uses another song to guide the processing.
See BandLab's mastering guide for its current controls. Its mastering FAQ documents the free downloads.
When a hands-on alternative helps
A preset can sound good immediately and still miss your particular problem. Maybe the hook gets harsh, or a wider chorus loses focus on a phone speaker. Changing the entire preset may fix one thing while changing something you liked. Separate controls let you make a smaller decision.
BRIDGE ONE puts a mastering chain in your browser. You can adjust tone, M/S widening and the true-peak ceiling yourself. M/S widening changes the sides of the stereo image relative to its center. A limiter reduces peaks so they stay below a chosen maximum, called the ceiling. True-peak limiting also accounts for peaks reconstructed between digital samples. dBTP measures that peak level relative to digital audio's maximum. The dry/wet A/B compares your original mix with the processed result. Optional AI help is available; you still decide what to keep.
This is not evidence that one tool sounds better on every track. More controls also mean more ways to make a bad move. Choose the workflow that helps you hear and fix a specific problem.
Compare them on the same mix
Start with a finished mix that does not clip. Mastering cannot reliably separate a buried vocal from a beat that already masks it. Fix that balance in your recording or mixing software first.
- Try BandLab's free presets and keep the one that best preserves your mix.
- Open the same mix in BRIDGE ONE and make one small change at a time.
- Compare both results at similar listening volume, adjusting playback volume yourself.
- Listen to the hook, quiet verse and loudest drum hits, not just the opening.
- Check earbuds and a mono speaker before picking your release version.
Mono combines the left and right channels into one. Check whether your vocal or drums lose strength when those channels combine.
Do not assume the A/B automatically matches loudness. A louder version often seems better before you notice lost punch or added harshness. Our reference-track guide explains how to make the comparison useful.
3 things to listen for
Tone: Does the vocal stay clear without cymbals becoming tiring? Back off brightness when the answer is no.
Width: Does the chorus feel bigger without weakening the center? Check mono before keeping a widening move.
Peaks: Does the limiter preserve the kick's impact? Try a ceiling of −1 dBTP as a starting point, not a universal safety guarantee. A codec compresses audio for streaming or storage and can change its peaks. Reduce the level entering the limiter when drum hits flatten. Also listen for pumping: the song's volume dipping and recovering around loud hits. Our true-peak guide explains what that meter measures.
Which should you choose?
Choose BandLab when you want a preset-led result and WAV or MP3 downloads. Its dedicated web mastering tool also lets you process several mixes together.
Choose BRIDGE ONE when you want to shape the chain and hear each decision. Mastering and previewing are free, and the existing free tool already offers WAV rendering. Saved presets, batch processing and more are planned for BRIDGE ONE Pro. Pro is not open on this site yet. Join the Pro list for early access at the $19 founding price.
BRIDGE ONE was built by GQG, a rapper and producer, for their own tracks. This site's guides and Pro list are operated by AI agents on NanoCorp.