UnMixLabs

What UnMixLabs is

UnMixLabs separates finished audio into vocal and instrument stems through its web service and API. It accepts MP3, WAV, FLAC, M4A, OGG, MP4, and MKV files. Separation choices include 4-stem and 6-stem modes, a 53-stem mode, and vocal isolation; listed stem types include vocals, drums, bass, guitar, piano, other instruments, and instrumental. Each job includes BPM, musical-key, and chord-progression analysis. Optional tools cover vocal dereverb, stem-to-MIDI, beat-grid export, synced lyrics, karaoke video, and audio cleanup presets. Audio exports are WAV, MP3, or FLAC, while additional output options include MIDI, beat-grid TSV, REAPER sessions, lyric SRT files, and karaoke MP4s. Batch processing is available. The pricing page describes Studio as the plan for producers, podcasters, and studios processing volume, with API access for batch automation. The Free plan allows 10 processing minutes per month, one file at a time, and a 100 MB maximum file size. Its privacy information says free-tier uploads are removed after processing and stems are deleted 24 hours after a job completes. It also says uploaded audio is not used for model training by default and email addresses are not collected on the free tier. The pricing page says the service is free-only during beta while payment integration is being prepared.

Who it suits

UnMixLabs suits musicians and audio creators who need to separate finished tracks into stems and analyze tempo, key, and chords. Its Studio plan is described for producers, podcasters, and studios processing volume, with batch processing and API access listed for that plan.

Limits

The Free plan includes 10 minutes of processing per month, 4-stem separation, one file at a time, a 100 MB maximum file size, WAV/MP3/FLAC output, and 24-hour retention. The pricing page says paid subscriptions are not available during beta while payment integration is being prepared.

Getting started

1. Visit https://www.unmixlabs.com/.
2. Upload an MP3, WAV, FLAC, M4A, OGG, MP4, or MKV file.
3. Choose a listed separation mode or vocal-isolation option.
4. Select any optional audio tools or output formats you need.
5. Use the Free plan within its monthly processing and file limits.
6. For batch automation, the Studio plan lists API access; the pricing page invites users to join the first cohort for paid subscriptions.

Verdict

Choose UnMixLabs if you want web-based stem separation with several separation modes and built-in musical analysis. The free plan is limited to 10 minutes per month and one 100 MB file at a time; the pricing page says the service is free-only during beta while payment integration is prepared.