Maastr

Paid#48 of 50 in AI Music Mastering Software

Maastr: A collaborative web mastering workspace with AI processing and paid WAV downloads. Ranked #48 of 50 in AI Music Mastering Software by our editors (3.5/10); pricing: Paid; best for collaborative mastering projects.

3.5/10★★☆☆☆Editor score

Visit Maastr

Maastr3.5 Visit Maastr

At a glance

• Editor score
  3.5 / 10
• Pricing
  Paid
• Best for
  Collaborative mastering projects
• Founded
  2020
• Facts checked
  20 Sep 2026

• Where it wins

  • AI mastering with original-versus-master comparison
  • Project collaboration, mix notes, and revision history
  • WAV and MP3 uploads with WAV downloads on paid plans

• Where it doesn't

  • Web-only access limits platform flexibility
  • Home Studio Wiz has limited dynamic and color settings
  • WAV downloads are paid on some plans

Our verdict on Maastr

Maastr is a web-based AI mastering service for musicians, producers, sound engineers, and studios. It analyzes uploaded WAV or MP3 tracks and creates mastered versions for playback and comparison with the original. The workflow includes loudness and dynamic-balance enhancement, project collaboration, mix notes, revision history, and version tracking. Maastr is positioned particularly for loud, guitar-forward genres such as punk, metal, hardcore, and indie, while also supporting broader online music mastering workflows.

The published plans are annual and progress from Home Studio Wiz to Studio Expert and Industry Pro. All three include full master previews and project collaboration. Home Studio Wiz includes paid WAV downloads and limited dynamic and color settings. Studio Expert adds free MP3 downloads, paid WAV downloads, and multiple dynamic and color settings. Industry Pro includes free WAV downloads, new feature previews, and multiple dynamics and color settings. This structure makes the higher tiers more suitable for projects that need broader sound-shaping controls or regular WAV delivery.

Maastr’s strongest distinction is its collaborative project layer around AI mastering. Playback, original-versus-master comparison, mix notes, revision history, and version tracking give teams a way to review and organize iterations rather than treating mastering as a single file-generation step. The trade-offs are a web-only platform, a narrower control set on the entry plan, and paid WAV downloads on two tiers. Choose Maastr if collaboration and revision tracking matter alongside AI mastering; choose another option if you need a non-web workflow or more extensive controls at the starting tier.

Your product? Our editors can test Maastr in depth and publish a review, labelled as paid · from $149/mo →

Maastr pricing

All 3 Maastr plans and prices →

Maastr fact sheet

Alternatives to Maastr

• iZotope OzoneA mature DAW mastering suite with broad control, references, and stem workflows.9.4
• Waves Online MasteringA focused web mastering service with reference matching, previews, and flexible credit plans.9.1
• MixeaA web mastering service for comparing many AI-generated master variations.9.0

See all Maastr alternatives →

Featured on iTechGuides

Maastr is listed in our AI Music Mastering Software directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/maastr/"><img src="https://www.itechguides.com/best/badge/maastr.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update