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Demixr
What it is
Demixr is a web-based audio processing service for creators, mixers, and content teams. Its tools handle vocal and instrumental separation, stem separation, dereverb, speech-segment detection, and BPM and key analysis. Demixr Pro 1.5 offers Voice mode for complex mixes, live recordings, or speech over music, and Music mode for songs, covers, or vocal and accompaniment separation. The stem tool separates music into vocals, drums, bass, and other parts. For dereverb, Demixr recommends first isolating the vocal; applying the effect to a mixed track may introduce artifacts or distortion. VAD creates editable speech markers and supports batch export, though it can be inaccurate when vocals are quiet or recordings are noisy. BPM analysis includes tempo, key, and Camelot values, with optional tap-to-sync. The Free plan includes 10 minutes of uploaded audio per month, 10 MB maximum uploads, two VAD uses, queued processing, and no WAV downloads. Paid plans are one-time purchases without automatic renewal, starting at $4/mo. Uploaded audio and outputs are deleted within 24 hours by default.
For and against
For
- Separates stems into vocals, drums, bass, and other.
- VAD provides editable markers and batch export.
- BPM analysis includes tempo, key, and Camelot values.
- Paid purchases do not renew automatically.
- Uploads and outputs are deleted within 24 hours by default.
Against
- Free plan limits audio to 10 minutes monthly.
- Free uploads are limited to 10 MB.
- Free plan does not allow WAV downloads.
- VAD may be inaccurate with quiet vocals or noise.
The verdict
Demixr brings separation, cleanup, speech markers, and music analysis into a web service. The Free plan is limited, while paid plans begin at $4/mo as one-time purchases without auto-renewal.
Who it suits
Demixr suits creators, mixers, and content teams that need browser-based audio separation or analysis. Its tools cover both music-oriented work and speech detection, with limits varying by plan.
Plans and prices
Free
10 minutes of uploaded audio/month · max 10MB per upload · 2 free VAD uses · BPM subject to fair use
Read 3 Oct 2026 · demixr.com
Go
10h audio/month · 50MB per upload · VAD and BPM subject to fair use · priority queue
Read 3 Oct 2026 · demixr.com
Plus
50h audio/month · 150MB per upload · VAD and BPM subject to fair use · priority queue
Read 3 Oct 2026 · demixr.com
Pro
100h audio/month · 500MB per upload · VAD and BPM subject to fair use · priority queue
Read 3 Oct 2026 · demixr.com
On the record
- Audience
- The homepage describes Demixr as serving creators, mixers, and content teams.demixr.com · read 3 Oct 2026
- Audio retention
- Uploaded audio and outputs are deleted within 24 hours by default, and uploaded audio is not used for training or analysis unless explicitly authorized.demixr.com · read 3 Oct 2026
- BPM and key
- The BPM tool analyzes tempo, key, and Camelot values and includes optional tap-to-sync.demixr.com · read 3 Oct 2026
- Dereverb workflow
- Demixr recommends separating vocals first and applying dereverb to the isolated vocal, because applying it directly to a mixed track may cause artifacts or distortion.demixr.com · read 3 Oct 2026
- Integration
- The billing page says checkout is processed by Creem and may support Alipay, cards, PayPal, Apple Pay, Google Pay, and other local methods where available.demixr.com · read 3 Oct 2026
- Payments and refunds
- Paid plans are one-time purchases with no automatic renewal; refund requests may be made within 7 days if paid processing quota has not been materially used.demixr.com · read 3 Oct 2026
- Product
- Demixr is an online audio processing service for vocal and instrumental separation, dereverb, VAD markers, BPM/key analysis, and stem separation.demixr.com · read 3 Oct 2026
- Security and privacy
- The privacy policy says Demixr uses access controls, signed links, and server-side permission boundaries, and does not sell personal data.demixr.com · read 3 Oct 2026
- Stem separation
- The stem tool separates music into vocals, drums, bass, and other using Demucs.demixr.com · read 3 Oct 2026
- Support
- Demixr lists [email protected] for support, refunds, and compliance matters.demixr.com · read 3 Oct 2026
- Upload limits
- The processing pages state a 15-second minimum audio duration and maximum file sizes of 200 MB for non-subscribers and 500 MB for subscribers.demixr.com · read 3 Oct 2026
- VAD
- VAD detects speech segments and provides editable markers and batch export; detection may be inaccurate with low vocal volume or noisy recordings.demixr.com · read 3 Oct 2026
- Vocal separation modes
- Demixr Pro 1.5 offers Voice mode for complex mixes, live recordings, or speech over music, and Music mode for songs, covers, and vocal/accompaniment separation.demixr.com · read 3 Oct 2026
