UnMixLabs
UnMixLabs is a web service and API for separating finished audio into vocal and instrument stems.
What UnMixLabs is
UnMixLabs is a web service and API for separating finished audio into vocal and instrument stems. It accepts MP3, WAV, FLAC, M4A, OGG, MP4, and MKV files, with 4-stem and 6-stem separation, a 53-stem mode, and vocal-isolation options. Available stems include vocals, drums, bass, guitar, piano, other instruments, and instrumental. Each job includes BPM, musical-key, and chord-progression analysis. Optional tools include vocal dereverb, stem-to-MIDI, beat-grid export, synced lyrics, karaoke video, and audio cleanup presets. Possible outputs include MIDI, beat-grid TSV, REAPER sessions, lyric SRT files, karaoke MP4s, and audio in WAV, MP3, or FLAC. Batch processing is available, and the Studio plan lists API access for automation. The free plan allows 10 processing minutes per month, one 100 MB file at a time, and 24-hour file retention. Its pricing page says the service is free-only during beta while payment integration is being prepared, and invites users to join the first cohort for paid subscriptions. The privacy page says free-tier uploads are deleted when processing finishes and stems 24 hours after the job completes.
Good
- Accepts seven listed audio and video formats
- Offers 4-stem, 6-stem, and 53-stem modes
- Every job includes BPM, key, and chord analysis
- Batch processing is available
- Free plan includes 10 processing minutes monthly
Watch out
- Free plan limits files to 100 MB
- Free plan allows one file at a time
- Free-tier stems are deleted after 24 hours
- Paid subscriptions are not currently available through the pricing page
Who it suits
UnMixLabs may suit people who want to separate audio into stems or use related tools such as vocal isolation, MIDI conversion, or karaoke outputs. The Studio plan is described as intended for producers, podcasters, and studios processing volume.
Verdict
UnMixLabs combines stem separation with analysis and optional audio tools, and its free plan provides a limited monthly allowance. The pricing page says it is free-only during beta, so paid tiers are not currently available through it.
Plans and prices
From UnMixLabs's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 10 minutes processing/month · 4-stem split · 100 MB max file · 1 file at a time · WAV/MP3/FLAC output · 24-hour file retention |
| Pro | $10.99 a month | 300 minutes/month + rollover · all 4 models · 1 GB max file · up to 20 files per batch · 30-day retention · priority queue · $99/year (save 24% vs monthly) |
| Studio | $24.99 a month | 1500 minutes/month + rollover · all 4 models · 2 GB max file · up to 50 files per batch · 90-day retention · highest priority queue · API access · $239/year (save 20% vs monthly) |
The facts
Each one read from UnMixLabs's own pages, with the date it was checked.
What it does
- Analysis
- The service says every job includes free BPM, musical-key, and chord-progression analysis.checked 7 Oct 2026
- API
- The site describes a partner API and lists API access for batch automation in the Studio plan.checked 7 Oct 2026
- Audio inputs
- The homepage lists MP3, WAV, FLAC, M4A, OGG, MP4, and MKV as accepted formats.checked 7 Oct 2026
- Audio tools
- Optional tools include vocal dereverb, stem-to-MIDI, beat-grid export, synced lyrics, karaoke video, and audio cleanup presets.checked 7 Oct 2026
- File retention
- The privacy page says free-tier uploads are deleted when processing finishes and stems are deleted 24 hours after the job completes.checked 7 Oct 2026
- Integrations
- The site says optional outputs include MIDI, beat-grid TSV, REAPER sessions, lyric SRT files, and karaoke MP4s.checked 7 Oct 2026
- Intended users
- The Studio plan is described as intended for producers, podcasters, and studios processing volume.checked 7 Oct 2026
- Privacy
- The privacy page says uploaded audio is not used to train models by default and that the service does not collect email addresses on the free tier.checked 7 Oct 2026
- Purpose
- UnMixLabs separates finished audio tracks into vocals, drums, bass, and other instrument stems.checked 7 Oct 2026
- Security
- The privacy page states that public connections use HTTPS and that API-layer job isolation limits access to a user's own jobs.checked 7 Oct 2026
- Separation modes
- The site offers 4-stem and 6-stem separation, a 53-stem mode, and vocal-isolation options.checked 7 Oct 2026
Money
- Plan availability
- The pricing page says the service is free-only during beta while the maker firms up payment integration, and invites users to join the first cohort for paid subscriptions.checked 7 Oct 2026
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