AI Mastering
AI-powered audio mastering.
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What is AI Mastering?
AI Mastering is an automatic online audio mastering service that lets musicians and producers upload tracks and receive a professionally styled master in minutes, using AI‑driven algorithms. The service focuses on improving overall loudness, tonal balance, and clarity so that the song sits better alongside commercial releases without manual mastering work. It offers a simple browser‑based interface where users can drag and drop audio files, set target loudness, choose output formats, and inspect spectrum and loudness via built‑in analysis tools.
Key features include a powerful limiter that balances loudness and dynamic range, customizable target loudness, and options to adjust mastering intensity and output format. Under the hood the service uses an open‑source mastering algorithm (PhaseLimiter) that can also be run offline, giving users additional control over processing. The platform is designed for quick, automated mastering rather than deep manual tweaking, making it suitable for indie artists, home‑studio producers, and projects where speed and cost matter more than custom engineer revisions.
The tool is aimed at independent musicians, bedroom producers, and small labels who want a polished, streaming‑ready master without paying for a human engineer or learning complex mastering chains. It also appeals to developers and platforms that want to integrate automatic mastering into their own distribution or workflow sites, since the core algorithm is available as open‑source software. Because it runs both online and offline, AI Mastering can be used both as a quick web service and as part of a local mastering pipeline.
AI Mastering pricing
Pricing model: Freemium
The service is completely free of charge, with no paid tiers listed on the website. Under the free plan users get unlimited mastering via the online service, meaning there is no limit on the number of tracks or sessions. The site does not offer any paid priority, premium, or pro plans that remove limits or waiting times; instead it encourages using the offline open‑source version on your own PC to avoid online queues. All features accessible through the web UI are available at no cost, and there are no usage caps or pay‑per‑master fees mentioned.
AI Mastering pros
- Completely free of charge to use online
- Unlimited mastering sessions under the free plan
- Very simple drag‑and‑drop upload interface
- Automated mastering that returns results in minutes
- Target loudness customization to match streaming platforms
- Mastering level customization to change intensity
- Output format customization for different delivery needs
- Built‑in spectrum analysis to inspect frequency content
- Loudness analysis to check LUFS and peak levels
- Powerful limiter that balances loudness and dynamic range
- Open‑source mastering algorithm that can be run offline
- Offline GUI version with greatly reduced waiting time
- Offline version allows processing without internet
- Source code transparency for technical users and developers
- Flexible integration into custom platforms or tools
- No restrictions on rights to your mastered tracks
- Support for high sample‑rate sources up to 48kHz or higher
- Bass preservation option to protect low frequencies in dance music
- Public API documentation for programmatic use
- Command‑line tools make it easy to batch‑process files
AI Mastering cons
- No paid priority plan to reduce online waiting time
- Online version may have longer queue times during peak use
- Limited control compared to manual mastering by a human engineer
- Fixed processing chain with fewer genre‑specific styles than some competitors
- No built‑in reference track matching directly in the web UI
- No built‑in multi‑track or stem mastering options
- No explicit revision or A/B comparison features on the website
- Support and documentation can feel sparse for non‑technical users
- Requires some familiarity with sample‑rate and bit‑depth settings
- Offline tools require installing and managing external software
Frequently asked questions about AI Mastering
What are the optimal settings for achieving maximum loudness?
To achieve maximum loudness, the recommendation is to increase the target loudness setting so that the limiter can push the overall volume up while still controlling peaks. The service automatically applies its algorithm to balance loudness and dynamics, and higher target loudness values will result in a louder master, within the constraints of the limiter and format.
I am experiencing an authentication error with my API token. How can I resolve this?
Authentication errors with the API token should be resolved by following the implementation guide published in the official GitHub repository, which explains how to correctly format and pass the token in requests. Double‑checking the header name, token syntax, and network configuration according to those instructions usually fixes the issue.
Is it possible to integrate AI Mastering into a music distribution platform?
Yes, the mastering algorithm used on aimastering.com is available as open‑source software, so it can be integrated into your own services or music distribution platforms. You can run the algorithm on your own servers using the PhaseLimiter codebase, allowing you to offer automated mastering directly within your workflow without relying on the public web interface.
How much does AI Mastering cost?
The service is completely free of charge, with no subscription fees or pay‑per‑master charges listed on the website. Users can use the online service as much as they want without hitting any pricing tiers or usage limits.
Is there a way to reduce or eliminate the waiting time for AI Mastering?
There is no way to shorten the waiting time for the online version, but the site recommends using the offline GUI version that runs on your own PC. This standalone tool bypasses the web queue and allows you to process tracks almost instantly, limited mainly by your local hardware performance.
I can't download my completed master. What should I do?
If you are unable to download a completed master through the online service, the suggested workaround is to use the offline version of the tool. The offline GUI can load and process the same file locally and then output the master directly to your computer, avoiding any web‑side delivery issues.
Is there a paid plan to avoid waiting time?
The service does not currently offer any paid plan to remove or reduce waiting time. Instead, the recommended approach is to use the offline version on your own PC, which handles mastering locally and effectively eliminates online queue delays.
Are there any settings to enhance low frequencies for dance music?
Yes, there is a bass preservation option that can be enabled to reduce low‑frequency attenuation. This setting helps maintain or emphasize the low‑end energy in dance‑oriented tracks, giving more punch to kicks and basslines while still preserving overall balance.
Can AI Mastering be used offline?
Yes, AI Mastering can be used offline. The service provides an offline GUI version that you can download and run directly on your PC, giving you full access to the mastering algorithm without needing an internet connection or waiting in the web queue.
Is it possible to support frequencies up to 24kHz?
Yes, it is possible to support frequencies up to 24kHz. You need to ensure that the original source audio has a sample rate of 48kHz or higher and then select the same sample rate in the custom mastering settings, allowing the processing chain to preserve the higher frequency content.