Best AI Mastering Tools in 2026
AI mastering tools now range from free presets to subscriptions that bundle distribution and plugins. This guide compares 8 AI mastering tools by what each vendor documents (inputs and outputs, stem support, reference matching, controls and pricing), using each vendor's own website, help center and pricing page as read on 2026-10-22.
What AI Mastering Tools Do
Mastering is the last step before release. It adjusts a finished mix's tonal balance, dynamics, stereo width and loudness so the track plays consistently across speakers and streaming services. AI mastering tools automate that step: you upload a mix, choose a style, genre or reference track, and the service analyzes the audio and applies EQ, compression, limiting and other processing.
The tools in this guide fall into three groups.
Online mastering services (LANDR, eMastered, Masterchannel, OneMaster, BandLab) take a finished stereo mix in the browser or an app.
Desktop plugins (iZotope Ozone 12) run inside your DAW and suggest a processing chain you can edit.
Stem mixing and mastering services (RoEx Automix, Cryo Mix and OneMaster's AI Mixing) take separate tracks, mix them and then master the result.
Pricing models differ as much as features. Some tools charge per master, some sell monthly or yearly subscriptions that bundle distribution and plugins, and one is a one-time software purchase. The right fit depends on how often you release, whether you have stems or only a stereo mix, and how much manual control you want.
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More on this subject: AI Tool Directories and Comparisons (231 guides)
How This Comparison Works
This guide compares 8 AI mastering tools on what each vendor documents:
Inputs and outputs: The file types each tool accepts and the formats and bit depths it delivers.
Stems: Whether the tool takes only a finished stereo mix or also accepts separate tracks.
Styles and references: The genre presets, styles or reference-track matching the vendor says it supports.
Controls: What you can adjust after the AI processes your track, and on which plan.
Pricing: Per-master prices, subscription tiers and one-time licenses in US dollars, and what each plan bundles, such as distribution, plugins or storage.
Every feature, plan and price below comes from the vendor's own website, help center or pricing page, read on 2026-10-22. Where a capability is the vendor's own description, the text says so. This guide does not rate how the masters sound. Prices change often, so check the vendor's pricing page before you buy.
The tools are numbered for reference only. The numbers are not a ranking.
Update: CloudBounce's website no longer loads as of October 22, 2026, so it is no longer part of this comparison. Image-Line, the company behind FL Studio, says CloudBounce closed its operations on June 30, 2025, and that CloudBounce's mastering technology continues as the AI mastering built into FL Studio, with full features in FL Cloud Plus and Pro subscriptions.
AI Mastering Tools at a Glance
Three tools accept separate stems: RoEx Automix, Cryo Mix and OneMaster. The other five take a finished stereo mix. Five can be used without a subscription: LANDR and OneMaster sell single masters, RoEx Starter charges per download, Ozone 12 is a one-time purchase, and BandLab's four free presets cost nothing.
8 AI Mastering Tools Compared
The numbers below are for reference and are not a ranking. Here is a quick overview before the detailed breakdown:
- LANDR: $10 per WAV master, or LANDR Studio from $13/mo ($8.25/mo billed yearly). Online, mobile and plugin mastering, with distribution included in Studio.
- eMastered: $34/mo, or $9/mo billed yearly. Reference mastering and manual controls, with distribution and stem separation in the same plan.
- Masterchannel: $25/mo, or $15/mo billed yearly. Engineer profiles steered by genre and mood, with EP, album and bulk mastering.
- iZotope Ozone 12: $55 to $499, one-time. A mastering plugin suite with an AI Master Assistant whose suggestions you can edit.
- RoEx Automix: $7.99 per download, or Pro at $24.99/mo ($12.50/mo billed yearly). Mixes up to 32 stems, then masters.
- OneMaster: $9.90 per song, no subscription. Masters a finished mix or a separate beat and vocal; AI Mixing takes 2 to 8 stems.
- Cryo Mix: $9 to $39/mo, or $199/yr. Stem mixing and mastering with up to 32 stems and a chat assistant, Nova.
- BandLab Mastering: Free with four presets. Membership from $14.99/mo adds four more presets and intensity controls.
1. LANDR
LANDR offers AI mastering in the browser, in its iOS and Android app, and as the LANDR Mastering Plugin for your DAW. LANDR says its engine is trained on the adjustments human mastering engineers make when preparing a track for release. You upload WAV, AIFF, FLAC or MP3, choose one of three mastering styles and a loudness level, and download MP3 (320 kbps), WAV (16-bit) or HD WAV (24-bit). Album mastering takes 2 to 20 tracks and applies the same settings across them, and reference mastering shapes your master toward a track you upload.
Key strengths:
- Single masters without a subscription ($10 per WAV master)
- Album mastering for 2 to 20 tracks, plus reference mastering
- LANDR Studio bundles mastering with distribution to 150+ stores, and LANDR says you keep 100% of your royalties
Limitations:
- LANDR's mastering pages describe single tracks and albums, not separate stems
- Studio Essentials includes MP3 masters only; Standard adds 3 WAV masters a month (36 a year on yearly billing), and only Pro includes unlimited WAV and HD WAV masters
- Revisions and saved mastering preferences are for subscribers only
Best for: Artists who release often and want mastering and distribution in one subscription.
Pricing: $10 for a single WAV master. LANDR Studio Essentials is $13/month, Standard $20/month and Pro $25/month, or $8.25, $12 and $16 a month billed yearly. The LANDR Mastering Plugin Pro is also sold as a $299 perpetual license.
2. eMastered
eMastered is an online mastering service that its site says was made by Grammy-winning engineers. You upload a WAV, AIFF or MP3 file, compare the master with your original for free, and download WAV or MP3 on a paid plan. Its reference mastering analyzes a track you upload alongside yours and, according to eMastered, matches loudness, balance and compression to it. Advanced Mastering Options, included in every paid plan, let you adjust strength, EQ, stereo width and volume and save your settings as presets.
Key strengths:
- Manual adjustment after the AI master, with saved presets
- Reference mastering on every paid plan
- The same subscription includes distribution (eMastered says you keep 100% of royalties), Stemify stem separation, the ATOM synth and PitchPro vocal tuning plugins, and a Linkify link-in-bio page
Limitations:
- Its pricing page lists subscriptions only, with no per-track option
- The lowest monthly price needs a yearly commitment
- Mastering takes a single finished file
Best for: Producers who want to adjust the AI master by hand and steer it with a reference track.
Pricing: $34/month on monthly billing, $14/month on a one-year commitment billed monthly, or $9/month billed yearly ($108 upfront). eMastered offers a money-back guarantee within 14 days if you have downloaded fewer than 4 tracks.
3. Masterchannel
Masterchannel, based in Oslo, masters your track with the sound profile of an engineer. It offers profiles of two engineers, Simon Hestermann and Grammy-winning engineer Wez Clarke, and the Wez Clarke profile is on the Professional plan and above. You can specify a genre and mood to steer the result, and Masterchannel says its loudness analysis and metering get tracks ready for streaming platforms. A project can be a single, an EP of up to six tracks mastered together, an album, or a bulk batch of tracks mastered independently.
Key strengths:
- A choice of engineer profiles, with Wez Clarke's on Professional and above
- Genre and mood settings to steer the master
- EP, album and bulk mastering on every plan
Limitations:
- Its pricing page lists subscriptions only, with no per-track option
- Adjusting the sound after mastering (Advanced Sound Controls) needs the Professional plan
- All of its project types (single, EP, album, bulk) take finished tracks
Best for: Producers who want a guided master with a choice of engineer profile and little setup.
Pricing: Artist $25/month, Professional $29/month and Partner $99/month, or $15, $19 and $79 a month billed yearly ($180, $228 and $948 a year). Partner adds multiple users and white-labeling.
4. iZotope Ozone 12
Ozone 12 is mastering software that runs as a plugin inside your DAW (AU, AAX and VST3 on macOS and Windows 10/11), not a cloud service. Its AI-powered Master Assistant builds a processing chain for your audio. In the Custom flow you pick a genre profile, upload reference tracks, set a LUFS target, choose which modules to use and set the processing strength, then edit the result yourself. Ozone 12 comes in three editions: Elements, Standard and Advanced.
Key strengths:
- Master Assistant suggests a chain, and you keep control over each module
- Standard and Advanced include Equalizer, Dynamics, Imager, Match EQ and Maximizer modules, plus track referencing
- Advanced adds Stem EQ, which iZotope says adjusts vocals, bass, drums and more inside a finished mix, along with Unlimiter and Codec Preview
Limitations:
- Elements includes Master Assistant but none of the individual processing modules in Standard and Advanced
- Stem EQ, Unlimiter and Codec Preview are in Advanced only
- You set and adjust the processing yourself, which asks more of you than upload-and-download services
Best for: Producers and engineers who want AI suggestions and full manual control inside their DAW.
Pricing: One-time licenses at $55 (Elements), $219 (Standard) or $499 (Advanced). iZotope also includes Ozone 12 in its subscription.
5. RoEx Automix
RoEx Automix mixes and masters from stems. You upload up to 16 stems on the free Starter plan or 32 on Pro, choose a style, and get a mixed and mastered track. On Pro, the Mix Console lets you adjust the AI mix, and you can download the processed stems or an editable project for Ableton Live or in the DAWproject format used by Bitwig and others. Automix also masters a finished stereo mix, with reference-track mastering on Pro. Automix runs on the web, and Automix Desktop is in beta.
Key strengths:
- Mixes up to 32 stems on Pro (16 on Starter) before mastering
- Exports processed stems and DAW projects on Pro
- RoEx says you keep every right to your work and it does not train on your music
Limitations:
- Stems for mixing must be WAV at 44.1 or 48 kHz, up to 8 minutes per file; mastering takes WAV or MP3 up to 10 minutes
- Reference mastering, stem export and DAW export need Pro
Best for: Artists who have stems and want the AI to handle both the mix and the master.
Pricing: Starter is free to try and charges $7.99 per download. Pro is $24.99/month, or $12.50/month billed yearly at $149.99, with unlimited downloads.
6. OneMaster
OneMaster is a browser-based AI mastering service from Nukai Labs, a company registered in Dubai. You upload a finished stereo mix, or a beat and a vocal as two separate files, in WAV, MP3, FLAC, M4A or OGG, then pick one of seven genre presets (Auto, Trap / Hip-hop, R&B, Rock, Pop, Lo-fi or Acoustic) or give it a WAV reference track for single-file masters. OneMaster says its AI measures the tone and loudness of your mix and moves it toward the target in small, capped steps through a chain of EQ, stereo width, saturation, bus compression and limiting. In the beat and vocal mode, it enhances each file separately before mastering them together.
You can listen to the whole master for free in 16-bit lossless quality. Downloading the 24-bit WAV, or a 16-bit version with dither, uses one song credit, and each paid master includes three free re-masters on the same files. OneMaster's AI Mixing takes 2 to 8 stems: you set each stem's role, level and pan, and it can master the mix in the same run at a Streaming (-14 LUFS) or Loud (-9 LUFS) target. OneMaster Studio, a browser workspace for recording and multitrack editing, includes one free project; exporting uses a Studio credit or a 30-day Studio Pass.
Key strengths:
- Pay per song with no subscription, and OneMaster says song credits never expire
- Full-length listening before you pay, plus three free re-masters after a paid download
- Three ways in: a finished mix, a beat and a vocal, or 2 to 8 stems through AI Mixing
Limitations:
- Browser only, and a free account is required
- Songs can be up to 10 minutes, and reference tracks must be WAV files on single-file masters
- OneMaster says digital distribution is not available yet
Best for: Artists who release occasionally and want to pay per master, including those with a separate beat and vocal.
Pricing: $9.90 for one song, $24.90 for 3 ($8.30 each) or $89.90 for 15 ($5.99 each). OneMaster's pricing page also shows a first-master offer of $4.90. Studio passes are $6.90 or $14.90 for 30 days.
7. Cryo Mix
Cryo Mix mixes and masters in the browser. You upload up to 32 stems (vocals, beats, instruments) to its AI Mixing & Mastering tool, or a finished mix to its AI Mastering tool, and hear a full-length preview without a credit card. Nova, its conversational assistant, explains each change and accepts plain-language adjustments, according to Cryo Mix. The same credits cover a Beat Optimizer and an Audio Separator that splits a track into vocals and instruments. Cryo Mix says it never trains on your music.
Key strengths:
- Up to 32 stems per project on every plan
- Plain-language adjustments through Nova
- Credits are charged only when you download, and unused credits roll over
Limitations:
- Subscription only, and each mix or master download uses a credit
- Starter and Essential export 16-bit/44.1 kHz WAV; 24-bit/48 kHz needs Creator or Pro
- AI reference mastering starts on the Creator plan, and the maximum file length runs from 5 minutes (Starter) to 15 minutes (Pro)
Best for: Rappers, singers and producers who have a vocal and a beat as stems and want them mixed and mastered in one browser tool.
Pricing: Starter $9/month (2 credits), Essential $19/month (5 credits), Creator $24/month (10 credits) and Pro $39/month (30 credits), or Pro Annual at $199/year (370 credits). Extra credits cost $3 to $6 each on Essential and higher plans.
8. BandLab Mastering
BandLab Mastering is part of BandLab's music platform, on the web and in the BandLab mobile app. You import an audio or video file, choose a preset and export the mastered track. Free accounts get four presets: Universal, Fire, Clarity and Tape. BandLab Membership adds Natural, Cinematic, Spatial and Punch and an 11-step intensity slider, and the Max plan adds a Mastering EQ. BandLab says you can master entire albums or EPs by dragging them in.
Key strengths:
- Free mastering with four presets
- Works in BandLab's browser studio and mobile app
- Membership adds distribution, and BandLab says members keep 100% of their earnings
Limitations:
- The free plan has four presets, and intensity and EQ controls need a paid Membership
- BandLab says Membership is what lets you master as many tracks as you want
Best for: Beginners and hobbyists who want free mastering, and BandLab users who already make music there.
Pricing: Free with four presets. BandLab Pro is $14.99/month, or $149/year ($99 for the first year). Max is $299/year ($199 for the first year).
How Stem Mastering Differs from Stereo Mastering
Most AI mastering tools accept only a finished stereo mixdown. You bounce your mix, upload it, and the AI applies EQ, compression and limiting to the combined signal. That works when the mix is already balanced.
Stem-based services take a different approach. You upload individual tracks (vocals, drums, bass, synths), and the service processes and balances each one before combining them and mastering the result. That gives it control over problems a stereo master cannot fix, such as a vocal buried under synths. OneMaster's own documentation makes the same point: its AI Master cannot rebalance parts of a mix, so a buried vocal stays buried.
Three tools in this guide accept separate tracks: RoEx Automix (up to 32 stems on Pro, 16 on Starter), Cryo Mix (up to 32 stems on every plan) and OneMaster (2 to 8 stems through AI Mixing, or a beat and a vocal as two files in AI Master). iZotope Ozone 12 Advanced takes a different route: its Stem EQ adjusts parts such as vocals, bass and drums inside a finished stereo mix. If your mixes have recurring balance problems, or you record vocals over a beat and do not mix them yourself, a stem-based service is worth the extra upload step.
What AI Mastering Does and Does Not Do
Streaming services adjust playback loudness. Spotify normalizes tracks to -14 LUFS and recommends mastering to -14 LUFS integrated with true peaks below -1 dBTP, or below -2 dBTP if your master is louder than -14 LUFS. Spotify also says you only need to send one high-quality stereo master per track. A louder master is turned down on playback, so keeping true peaks under control matters as much as the loudness number.
Several tools here document loudness settings. LANDR offers loudness levels alongside its styles, Masterchannel says it meters loudness for streaming platforms, Ozone 12's Master Assistant takes a LUFS target, OneMaster's AI Mixing offers a -14 LUFS Streaming target, and Cryo Mix lists streaming-optimized loudness on every plan.
AI mastering measures a mix and moves it toward a target. OneMaster, for one, lists what that approach cannot do: it cannot hear intent, so a mix that is dark on purpose is nudged toward the target like any other; it cannot separate parts of a mix; it cannot undo a limiter already on the mix; and it does not handle fades, spacing between album tracks or metadata. A human mastering engineer makes those calls and also handles format-specific work such as a vinyl master. You can also use an AI master as a reference during production and book an engineer for the final release.
Which Tool Should You Pick?
Start with the files you have and how often you release.
If you want mastering and distribution in one subscription, LANDR Studio, eMastered and BandLab Membership all include distribution, and each says you keep 100% of your royalties or earnings. LANDR adds album mastering, a mobile app and a DAW plugin.
If you want to adjust the master yourself, eMastered's Advanced Mastering Options, Masterchannel's Professional plan and iZotope Ozone 12 all offer manual control. Ozone exposes every module for editing, and it is a one-time purchase rather than a subscription.
If you master only occasionally, pay per master. LANDR sells a single WAV master for $10, OneMaster sells song credits from $9.90 that never expire, and RoEx Starter charges $7.99 per download.
If you have stems rather than a finished mix, RoEx Automix, Cryo Mix and OneMaster's AI Mixing mix them before mastering.
If you have never mastered a track, start with BandLab's free presets to hear what mastering changes before you spend money.
Sources
References used to verify factual claims in this guide.
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CloudBounce closed its operations on June 30, 2025, and its mastering technology continues as the AI mastering built into FL Studio
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Spotify normalizes playback to -14 LUFS and recommends masters at -14 LUFS integrated with true peaks below -1 dBTP
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LANDR sells a single WAV master for $10, and LANDR Studio costs $13 to $25 a month, or $8.25 to $16 a month billed yearly
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LANDR Mastering accepts WAV, AIFF, FLAC and MP3 and outputs MP3 (320 kbps), WAV (16-bit) and HD WAV (24-bit)
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eMastered costs $34 a month, $14 a month on a one-year commitment, or $9 a month billed yearly, with Advanced Mastering Options on every paid plan
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Masterchannel's Artist, Professional and Partner plans cost $25, $29 and $99 a month, or $15, $19 and $79 a month billed yearly
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Ozone 12 Advanced costs $499 and adds Stem EQ, Unlimiter and Codec Preview to the Standard edition's modules
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RoEx Automix Starter charges $7.99 per download with 16-track mixing, and Pro costs $24.99 a month or $149.99 a year with 32-track mixing
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Cryo Mix plans cost $9 to $39 a month or $199 a year, with up to 32 stems per project
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BandLab's free plan includes 4 mastering presets, and Pro and Max include 8 presets with intensity controls
Frequently Asked Questions
What is the best AI mastering service?
It depends on what you need, and this guide does not rank the tools. LANDR combines online, mobile and plugin mastering with distribution in LANDR Studio. eMastered adds manual controls and reference mastering to every paid plan. Masterchannel steers masters with engineer profiles, genre and mood. If you have stems, RoEx Automix, Cryo Mix and OneMaster's AI Mixing mix them before mastering. BandLab masters for free with four presets.
Is AI mastering as good as a human mastering engineer?
That depends on the track, and this guide does not rate how masters sound. AI mastering measures a mix and moves its tone, dynamics, stereo width and loudness toward a target. Vendors document its limits. OneMaster, for example, says its AI cannot hear intent, rebalance parts of a mix or undo a limiter already on it. A human engineer makes interpretive decisions, sequences an album and prepares format-specific masters such as vinyl.
How much does AI mastering cost?
BandLab masters for free with four presets. Single masters cost $7.99 per download on RoEx Starter, $9.90 per song at OneMaster ($5.99 each in a 15-song pack) and $10 for a WAV master at LANDR. Subscriptions start at $9 a month (Cryo Mix Starter, or eMastered billed yearly) and run to $99 a month for Masterchannel's Partner plan. iZotope Ozone 12 is a one-time purchase from $55 (Elements) to $499 (Advanced). Prices are from each vendor's site on October 22, 2026.
Can AI master a song for Spotify?
Yes. Spotify normalizes playback to -14 LUFS and recommends a master at -14 LUFS integrated with true peaks below -1 dBTP. Several tools document loudness settings, including LANDR's loudness levels, Ozone 12's LUFS target and the -14 LUFS Streaming target in OneMaster's AI Mixing. Spotify says you only need to send one high-quality stereo master per track.
What is stem mastering and which AI tools support it?
Stem-based services take separate tracks (vocals, drums, bass, synths), process and balance each one, then master the mix. Three tools in this guide accept stems. RoEx Automix takes up to 32 on Pro (16 on Starter), Cryo Mix takes up to 32, and OneMaster takes 2 to 8 through AI Mixing, or a beat and a vocal in AI Master. The other five take a finished stereo mix, though Ozone 12 Advanced's Stem EQ can adjust parts inside that mix.
Which AI mastering tools work without a subscription?
LANDR sells a single WAV master for $10. OneMaster sells song credits that never expire, from $9.90 for one song. RoEx Starter charges $7.99 per download. iZotope Ozone 12 is a one-time purchase, and BandLab's four free presets cost nothing. eMastered, Masterchannel and Cryo Mix list subscription plans only.