Voice AI platform with speech-to-text, text-to-speech and Voice Agent APIs, available as a managed API, in-VPC or self-hosted.

AI Mastering
Automatic online audio mastering service that brings tracks closer to commercial loudness, with a free plan and an open-source algorithm.
What is AI Mastering?
AI Mastering is an online audio mastering service that processes a music track automatically so its sound quality moves closer to commercially released music. You drag and drop a file, set a target loudness and mastering level, choose the output format, and check the result with spectrum and loudness analysis. A limiter balances loudness against dynamic range, and a bass preservation option reduces low-frequency loss for dance music. The service is free: its pricing box shows a Free Plan at $0 per month with unlimited mastering, and the FAQ says there is no paid plan. Because the vendor stopped offering support, it supplies no warranty. The mastering algorithm, called PhaseLimiter, is open source, a desktop version runs offline on your own PC, and an OpenAPI-described API and command-line tools are available for automation or for building mastering into a distribution platform.
Use cases
- Master a finished song online
- Raise a track's loudness toward commercial levels
- Master music offline on your own PC
- Automate mastering through an API
- Preserve bass in dance tracks
- Check loudness and spectrum of a mix
Who it's for
Why use AI Mastering
- Mastering costs nothing: the Free Plan is listed at $0 per month with unlimited mastering.
- You keep full control of your tracks, and the FAQ says the service places no restrictions on the rights.
- Settings for loudness, level, format and bass give you control without learning a full mastering chain.
- The open-source algorithm and offline desktop build let you run mastering on your own machine or server.
- An API and command-line tool make it possible to automate batches or plug mastering into another product.
AI Mastering features
- Drag-and-drop upload interface
- Target loudness customization
- Mastering level customization
- Output format customization
- Spectrum analysis
- Loudness analysis
- Bass preservation option
- Custom sample-rate output up to 24kHz content
- OpenAPI-described API and command-line tools
- Free offline desktop version
AI Mastering integrations
How to get started with AI Mastering
- Open AI Mastering and drag and drop your track into the page.
- Set the target loudness, mastering level and output format, and turn on bass preservation if needed.
- The AI masters the track using a limiter that balances loudness and dynamic range.
- Check the loudness and spectrum analysis, then download the finished master.
AI Mastering limitations
- The service is provided with no warranty and no support in principle
- The online version has a waiting time and no paid option to skip it
- The online version limits file size, while the offline version is limited by your PC memory
- The terms are binding only in the Japanese original
AI Mastering pricing
AI Mastering is free to use.
AI Mastering plans
Free Plan
$0 /Month
- Unlimited mastering
Plans as listed on the official pricing page on . Prices can change and may vary by country or exclude tax. Check the official pricing page.
AI Mastering alternatives
The main AI Mastering alternatives listed on Debuly are LANDR, AI Song Maker, ecrett music, MusicGPT, AIMusic and Google Flow Music. The table compares pricing and platforms; order is A–Z.
| Tool | Pricing | Starting price | Platforms |
|---|---|---|---|
| AI Mastering | Free | — | Web, Windows, macOS, Linux |
| AI Song Maker | Freemium | $10.49/mo | Web |
| AIMusic | Freemium | $9.99/mo | Web |
| ecrett music | Freemium | — | Web |
| Google Flow Music | Freemium | $6/mo | Web, iOS |
| LANDR | Paid | $8.25/mo | Web |
| MusicGPT | Freemium | — | Web, API |

AI Song Maker
Web AI music generator that turns text or lyrics into royalty-free songs, with covers, vocal removal and a free daily credit allowance.

AIMusic
AI music generator that creates full songs from a text prompt or your own lyrics, plus vocal remover, stem splitter and lyric video tools.
FreemiumVisit AIMusic (official site)
ecrett music
AI music generator for royalty-free background tracks, built from a scene, mood and genre with editable instruments and sections.

Google Flow Music
Chat-based AI music studio that makes full songs with vocals, music videos and remixes, with a free plan and paid tiers from $6 a month.

LANDR
AI music mastering, distribution to 150+ streaming platforms, samples, plugins and collaboration in one subscription.
MusicGPT
AI music and audio platform with song generation, voice tools, stem splitting and a pay-per-request API.
FreemiumVisit MusicGPT (official site)
AI Mastering FAQ
How much does AI Mastering cost?
It is free. The pricing box shows a Free Plan at $0 / Month with unlimited mastering, and the FAQ states that it is completely free of charge.
Is there a paid plan to avoid waiting time?
No. The FAQ says no paid plan is offered. To shorten waiting, the vendor suggests running the offline version on your own PC.
Who is AI Mastering for?
It suits musicians and producers who want an automatic master without hiring an engineer, and developers who want to add automated mastering to a distribution platform.
Can AI Mastering be used offline or self-hosted?
Yes. A free offline desktop version exists, and the mastering algorithm PhaseLimiter is open source, so you can run automated mastering on your own server.
Does AI Mastering have an API?
Yes. The FAQ points to an OpenAPI specification and an API client, and the blog describes a command-line tool for Windows, Mac and Linux that needs an API access token.
Who owns the mastered tracks?
You do. The FAQ says you retain full control of your tracks and the service imposes no restrictions.
What are alternatives to AI Mastering?
Alternatives include LANDR, eMastered, BandLab Mastering, CloudBounce and iZotope Ozone. Compare price, formats and how much manual control each gives you.
Sources & verification
Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.
| Source | Type | Accessed |
|---|---|---|
| aimastering.com/ | pricing | |
| aimastering.com/faq/ | official | |
| aimastering.com/blog/en/ | official | |
| aimastering.com/terms_of_service/ | official |
Image credits
- Logo: from aimastering.com · fetched · Vendor trademark, used only to identify the product; removed on request
- Cover: none collected yet, so a generated tile is shown.
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