MasteringOnline review
Unlimited web mastering with practical controls at a low monthly price.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
MasteringOnline is a web-based AI audio mastering service for artists, labels, and music creators. It analyzes uploaded WAV, FLAC, or MP3 files and applies a mastering chain covering EQ, dynamics, stereo processing, loudness control, and limiting. The service supports full-length tracks up to 500 MB and returns 48 kHz/24-bit WAV or high-quality MP3 files. It fits solo creators and small teams that want automated mastering for streaming, radio, club, and other release workflows without a per-track limit.
Pricing is straightforward across three paid plans. The Monthly plan costs $7.99 per month and includes unlimited tracks with cancellation available at any time. The Yearly plan costs $69.99 per year, includes two months free compared with monthly billing, and also provides unlimited tracks with cancellation available at any time. The Lifetime plan costs $138.99 as a one-time payment, includes unlimited tracks, and adds lifetime updates. There is no free plan, although a preview upload is available before committing to a paid plan. For frequent mastering, the unlimited structure is the main value proposition.
The service focuses on automated, file-based mastering rather than a wider production ecosystem. Automatic audio analysis and quality checks help frame the workflow, while loudness targets and true peak control offer more direction than a single fully automatic output. Temporary file storage is automatically removed after delivery. However, the feature set does not include reference matching, stem mastering, or integrations, and access is limited to the web. Choose MasteringOnline for repeated stereo-track mastering on a budget; choose an alternative if you need stem-based processing, reference-track matching, or connected production tools.
MasteringOnline pros and cons
- Where it wins
- Unlimited tracks on monthly, yearly, and lifetime plans
- Supports WAV, FLAC, and MP3 input with WAV and MP3 output
- Includes LUFS targets, true peak control, and 500 MB track support
- Where it doesn't
- No free plan is included
- Does not offer reference matching or stem mastering
- Web-only service without integrations
MasteringOnline fact sheet, pricing and score →
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