Kits AI

What is Kits AI?

Kits AI is a browser-based music production platform that converts vocals into other voices, clones singers and splits or masters audio for producers. It is built for music makers rather than general narration.

The core workflow starts with a recording you upload or capture. You pick a voice from the royalty-free library or a model you have trained, convert the take, then refine it with blending, harmony or mastering tools. A desktop app adds drag-and-drop conversion so you can move files between Kits and your DAW, and a developer API exposes conversion, blending and vocal removal.

Kits is run by Arpeggi, Inc., a company with a San Francisco address in its terms of service. The site positions the product around ethically sourced voices: artists license their voices directly and can share revenue through the Kits Earn programme. You must be 18 or older to use the service, and the terms forbid cloning anyone’s voice without their authorisation.

Key Features

Licensed singing voices and custom cloning sit at the centre of Kits AI, with stem separation and mastering added so a demo can be finished in one place.

• Royalty-free voice library: Kits offers a library of more than 100 artist voices across pop, R&B, soul, gospel, rap and Afrofusion. You can run a guide vocal through any of them and release the result without paying the voice owner extra royalties.
• Custom voice cloning: Paid plans let you train professional voice models from your own recordings, alongside a faster instant cloning option. Starter includes two voice slots, while Producer and Professional remove the cap on slots.
• Voice Designer and blending: Voice Designer builds a new vocal from traits you pick, and blending mixes two or more voices into one tone. Voice Variants then nudges a model slightly or reshapes it completely for a fresh character.
• Stem Splitter and Vocal Remover: The splitter separates a mix into vocals, drums, bass and other instruments for remixing or sampling. The vocal remover also offers de-echo and de-reverb passes, which help clean up a rough room recording.
• AI Mastering and enhancement: One-click mastering handles full tracks, stems or samples, and a separate enhancement tool cuts noise and lifts clarity. These cover finishing steps that would otherwise need extra plug-ins or an engineer.
• Harmony and utility tools: A harmony generator turns a single line into stacked vocal harmonies, and the Starter plan adds a choir tool. Kits also includes a key and BPM finder plus an AI instrument library.

Pros

Rights clarity is the strongest argument for Kits AI, because its library voices come from artists who agreed to license them.

• Licensed voices: Kits says its library voices are licensed directly from the artists, with no scraping of their work. Producers who release commercially get clearer rights than with tools built on unlicensed celebrity clones.
• Many tools in one place: Voice conversion, stem splitting, mastering and harmony tools share one account. Bedroom producers can cover several production steps without buying and learning four separate services.
• Low entry price: The Starter plan lists at $10 a month with unlimited conversion minutes and two voice slots. Hobbyists can test custom cloning seriously before committing to a larger plan.
• Artist revenue share: The Kits Earn programme lets artists license their own voice and share in revenue when others use it. Singers gain a way to earn from their tone rather than lose control of it.
• Unused minutes roll over: Download minutes that you do not use carry into the next month, according to the pricing FAQ. Occasional users therefore lose less value in quiet months than with a strict monthly reset.

Cons

Downloads are where the free plan stops, since it allows conversions but no exported audio and no custom voice slots.

• Free plan cannot download: The free tier lists 15 conversion minutes but zero download minutes and no custom voice slots. You can preview results, but exporting audio for a project requires a paid subscription.
• Training on your uploads: For accounts created after 2 October 2024, the terms allow Kits to train its models on your voice files and outputs. Opting out means emailing the company, which is less convenient than a settings toggle.
• No refunds: The terms state that subscription payments are non-refundable, with no credit for partly used periods. Test the free tier thoroughly and start monthly before choosing an annual plan.
• Inconsistent price listings: The pricing page lists Starter at $10, yet the API page still says paid plans start at $14.99. Directory listings show older plan names too, which makes comparison confusing.
• Frozen voices after cancelling: Custom voices are kept but frozen when you cancel, so they cannot be used until you resubscribe. Long-running projects can therefore tie you to an ongoing subscription.

Who is Using Kits AI?

Independent music makers form the core audience, from bedroom producers to songwriters building demos, with developers using the API on the side.

• Music producers: Beatmakers and producers use Kits to turn rough guide vocals into polished demos. They also split stems for remixes and flips.
• Songwriters: Writers pitch songs with a vocal style that suits the target artist. This saves booking a session singer for every early draft.
• Singers and artists: Vocalists train a model of their own voice for quick ideas and harmonies. Some license their tone through Kits Earn to earn revenue.
• App developers: Developers call the API for voice conversion, blending and vocal removal. They build these features into music and audio products.

Pricing

Kits AI runs a freemium model with a free tier and three paid plans from $10 to $60 a month (official pricing page, October 2026).

Annual billing is advertised at up to 47 per cent off, though exact yearly prices were not shown. The Kits API page still says paid plans start at $14.99, and one directory lists older Creator, Professional and Unlimited tiers at $14.99 to $59.99, so treat the pricing page as the current source.

Disclaimer: Kits says existing subscribers keep the price model they signed up under, so the figure you see as a new user may differ from older reviews.

What Makes Kits AI Unique?

Artist consent is built into the catalogue. Many AI voice tools let users upload any model they find, including unlicensed celebrity clones, while Kits sources its library voices from the artists themselves and pays them through a revenue-sharing programme. For anyone planning to release music, that changes the legal risk considerably.

Breadth is the second difference. Rivals often focus on one task, such as stem separation or text-to-speech, whereas Kits combines voice conversion, cloning, harmonies, stem splitting and mastering under one subscription. Responsible use still matters: only clone your own voice or one you have clear written permission to use, and respect the licence terms of every library voice.

Compatibilities and Integrations

Most work happens in the web app, with a desktop app and a developer API extending Kits into existing studio and product workflows.

• Web app: All core tools run in a modern browser, so no install is needed to start converting vocals.
• Desktop app: Kits describes drag-and-drop conversion to and from other creative applications, with up to five voice models compared at once. Exact operating system support was not stated on the pages we read.
• API: The developer API covers voice conversion, voice blending and vocal removal. Text-to-speech was removed from the API on 22 September 2025.
• Model files: One directory reports support for .pth voice model files. Confirm compatibility with the help centre before importing models trained elsewhere.
• Languages: The interface is offered in English, Spanish, Portuguese, Korean, Hindi and French.

Kits AI Tutorials

A first converted vocal takes six short steps, starting with a free account and a clean, dry recording.

1. Create a free account at kits.ai and open the voice conversion tool.
2. Record or upload a dry vocal take with little reverb or background noise.
3. Choose a royalty-free library voice, or train your own model on a paid plan with recordings you own.
4. Convert the take and adjust pitch or advanced settings until it sits well.
5. Use the stem splitter, harmony generator or mastering tool to finish the part.
6. Download the result on a paid plan and import it into your DAW.

How We Rated It

Kits AI scores 3.9 out of 5, driven by a broad, licensed toolset and pulled down by default training on user uploads and non-refundable plans.

Summary

Kits AI suits independent producers and songwriters who want licensed AI vocals, custom voice models and basic finishing tools in one subscription. Its main limitation is the gap between free and paid use, since the free tier cannot export audio and payments are non-refundable. Privacy-minded users should also note that newer accounts are opted into model training unless they email to opt out. We rate it well for breadth and rights clarity but lower for data handling. Use the free conversion minutes to test your own vocal against several voices, then start on a monthly Starter plan before committing to annual billing.