Can I master audio for free?
Yes. Files up to 3 minutes can receive a free full master.
FAQ
What to know before you master.
Answers about the preview-first workflow, free masters, profiles, upload formats, metadata, saved tokens, and API access.
1 Upload2 Choose a profile3 Preview4 Master
Voice
Podcast Voice
Crisp, consistent speech with reduced sibilance.
0:30 preview
Can I compare before and after?
Yes. Generate a short before/after preview before approving a full master.
What file types are supported?
WAV, MP3, FLAC, M4A, OGG, AIFF, and AIF are supported.
Can I try multiple profiles?
Yes. You can queue different profiles for the same source file and compare the resulting masters.
What are custom profiles?
Custom profiles save your preferred EQ, dynamics, filters, sample-rate, and loudness settings.
Can I retrieve a master later?
Yes. Guest renders produce access tokens that can be used to check status and download completed masters.
Is there an API?
Yes. API access supports batch uploads, preview renders, full renders, status checks, and webhook workflows.