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Demixr

demixr.com

From $4/mo Free plan Web
Visit demixr.com
Spec score 8.0 #8 of 23 in AI Voice Isolators

What it is

Demixr is a web service for processing audio, with tools for separating vocals and instruments, removing reverb, marking speech, and analyzing BPM and key. Its Pro 1.5 vocal separation has Voice mode for complex mixes, live recordings, or speech over music, and Music mode for songs and covers or separating vocals from accompaniment. A separate stem tool uses Demucs to split music into vocals, drums, bass, and other parts. For dereverb, Demixr recommends isolating vocals first; applying the effect to a mixed track can cause artifacts or distortion. VAD provides editable speech-segment markers and batch export, though detection may be inaccurate with quiet vocals or noisy recordings. BPM analysis includes tempo, key, and Camelot values, with optional tap-to-sync. The free plan costs nothing and includes 10 minutes of audio monthly, a 10 MB upload limit, two VAD uses, queued processing, and no WAV downloads. Paid one-time plans start at $4/mo, without automatic renewal. Uploads and outputs are deleted within 24 hours by default.

Spec sheet

Product
Demixr is an online audio processing service for vocal and instrumental separation, dereverb, VAD markers, BPM/key analysis, and stem separation.Read 3 Oct 2026 · demixr.com
Audience
The homepage describes Demixr as serving creators, mixers, and content teams.Read 3 Oct 2026 · demixr.com
Support
Demixr lists [email protected] for support, refunds, and compliance matters.Read 3 Oct 2026 · demixr.com
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.Read 3 Oct 2026 · demixr.com
BPM and key
The BPM tool analyzes tempo, key, and Camelot values and includes optional tap-to-sync.Read 3 Oct 2026 · demixr.com
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.Read 3 Oct 2026 · demixr.com
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.Read 3 Oct 2026 · demixr.com
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.Read 3 Oct 2026 · demixr.com
Security and privacy
The privacy policy says Demixr uses access controls, signed links, and server-side permission boundaries, and does not sell personal data.Read 3 Oct 2026 · demixr.com
Stem separation
The stem tool separates music into vocals, drums, bass, and other using Demucs.Read 3 Oct 2026 · demixr.com
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.Read 3 Oct 2026 · demixr.com
VAD
VAD detects speech segments and provides editable markers and batch export; detection may be inaccurate with low vocal volume or noisy recordings.Read 3 Oct 2026 · demixr.com
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.Read 3 Oct 2026 · demixr.com

Plans and prices

Free Free 10 minutes of uploaded audio/month · max 10MB per upload · 2 free VAD uses · BPM subject to fair use · queued processing · no WAV downloads Read 3 Oct 2026 · demixr.com
Go $4 a month $4 / 1 month; one-time payment, no auto-renewal 10h audio/month · 50MB per upload · VAD and BPM subject to fair use · priority queue · WAV downloads Read 3 Oct 2026 · demixr.com
Plus $9 a month $9 / 1 month; one-time payment, no auto-renewal 50h audio/month · 150MB per upload · VAD and BPM subject to fair use · priority queue · WAV downloads Read 3 Oct 2026 · demixr.com
Pro $15 a month $15 / 1 month; one-time payment, no auto-renewal 100h audio/month · 500MB per upload · VAD and BPM subject to fair use · priority queue · WAV downloads Read 3 Oct 2026 · demixr.com

Every Demixr plan and price →

Strong points and limits

Strong points

  • Voice and Music modes handle different separation needs.
  • Stem tool splits music into four parts.
  • VAD markers are editable and batch-exportable.
  • BPM analysis includes key and Camelot values.
  • Uploads and outputs default to deletion within 24 hours.

Limits

  • Free plan limits uploads to 10 MB.
  • Free plan includes only 10 minutes monthly.
  • Free plan has no WAV downloads.
  • Noisy recordings can reduce VAD accuracy.

Who it suits

Demixr suits creators, mixers, and content teams working with audio in a web browser. Its vocal, stem, dereverb, speech-marker, and tempo-analysis tools cover several common audio-processing tasks.

Verdict

Demixr combines several audio analysis and separation tools in a web service, with a free tier and one-time paid plans. Check the upload limits and processing allowances for the plan you choose; paid plans do not renew automatically.

Where Specifiction places it

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