Terms of Service

Clear billing, cancellation, and refund rules.

Terms of Service

Last updated: November 3, 2025

1. Trial and Billing

By starting a free trial, you authorize Music Demixer (“we,” “us,” “our”) to charge $9.99 USD per month (or $99.99 USD per year) after the 3-day trial ends, unless you cancel beforehand.

Your subscription renews automatically each billing period until canceled.

2. Cancellation

You may cancel anytime:

  1. Click “👤 Manage Account ▼” in the top-right of the website
  2. Click “Manage Subscription & Billing” and follow the instructions to access your Stripe billing portal
  3. Click “Cancel subscription” from the Stripe billing portal

Cancellations take effect immediately and stop future billing. After cancellation, your access remains active until the end of the current billing period. If our records show no cancellation event, the subscription remains active.

3. Refunds

If you forgot to cancel or are dissatisfied, email support@freemusicdemixer.com within 7 days of the charge.
We may refund, prorate, or credit payments after a brief usage review.
All services are digital and delivered instantly. If you experience errors, crashes, or incorrect results, try our support tips or contact us for support or a refund.

4. Disputes and Chargebacks

Please contact support@freemusicdemixer.com before filing a chargeback.
We resolve legitimate billing issues within 24 hours.
Filing a dispute instead of contacting support may result in account termination and loss of access.

By subscribing, you confirm that:

  1. You understand this is a recurring digital subscription
  2. You know how to cancel (Manage Account → Manage Subscription & Billing -> Cancel subscription)
  3. You agree to contact support first for billing issues

5. Service Description

Music Demixer provides browser-based AI audio tools for stem separation, MIDI transcription, and sheet-music generation.
User data is minimal and not retained beyond what’s required for billing and support.

5A. Non-Commercial Use

Music Demixer is provided for personal, educational, and research use only, and is based on open-source academic research models. You may not use the outputs of the Service or any separated or transcribed material for resale, commercial release, broadcast, or any other for-profit purpose without obtaining the necessary rights from the original copyright holders.

You are solely responsible for ensuring that your use of the Service and its results complies with copyright and fair-use laws in your jurisdiction.

6. Privacy

Payments are processed by Stripe.
Hosting and security are provided by trusted third-party vendors.
Full details are available in our Privacy Policy.
We never sell personal data.

7. Governing Law

These Terms are governed by the laws of Quebec and Canada.
By using Music Demixer, you agree to these Terms of Service.


By clicking “Start Free Trial,” you acknowledge and agree that your card will be charged $9.99 USD per month (or $99.99 USD per year) after 3 days unless you cancel as described above.