AI Music Mastering is a browser tool that finishes a mix with eight audio presets, for people who want to hear the master before paying to download it.
Presets, not a trained model
The homepage calls this AI music mastering. The FAQ on that page says the tool uses audio-processing presets rather than a trained AI model. It shapes the tone, dynamics and loudness of a finished mix. It does not write or rearrange the song, and it does not restore missing notes. The terms, last updated September 20, 2026, say the current service uses automated digital signal processing, and that the result depends on the source and the settings.
The image on this page is the homepage demo, a track labeled Midnight Drive, with the original mix next to a Universal master. It is not a file uploaded from here.
- The upload box accepts WAV, MP3, FLAC or AIFF, up to 200 MB and 10 minutes, mono or stereo, from 1 second. The FAQ says a lossless WAV or AIFF is preferable, and that converting an MP3 to WAV does not restore lost detail.
- The eight profiles are Universal (balanced tone, gentle compression), Fire (more weight, brighter highs, stronger compression), Clarity (brighter highs, less low-mid weight), Tape (warm tone, gentle saturation), Natural (lighter compression), Spatial (wider stereo, a touch of reverb), Cinematic (fuller lows, added saturation) and Punch (more low-end weight).
- Intensity and EQ stay adjustable on top of a profile. The FAQ suggests starting with Universal, then comparing Fire or Clarity. A loudness match in the studio changes preview playback only. It does not change the file you download.
- A finished export from Suno, Udio, Mureka or a DAW can be uploaded. Importing a Suno or Mureka link uses their server to fetch the shared audio. The input is a completed mono or stereo mix, not separate stems. The FAQ says it cannot reliably remove severe generation artifacts.
The preview is free. The download is not.
Uploading, the eight profiles, intensity, EQ and an original-versus-master preview do not require a subscription. The privacy page says a free preview works without signing in. A free preview does not create a subscription. Paid features are available only after a verified payment, and the terms say payment is available only when checkout is connected.
- Membership is $9.90 USD a month through Stripe and renews until it is canceled before the next charge. Stripe shows the total before payment. Billing problems and refund requests go to support. The terms do not list an automatic refund window, and they say applicable consumer rights still apply.
- An active membership can download 24-bit WAV, 16-bit WAV or 320 kbps MP3, and can use a reference track. Reference mode replaces the preset and still leaves intensity and EQ adjustable. It does not copy melody, arrangement or individual instruments, and it does not promise a matching result.
- Songs stay saved. A free account can see the latest 3. Membership opens the older ones.
The browser processes it, then the result is stored
The privacy page, last updated October 3, 2026, says mastering, loudness analysis, reference matching and download encoding run in the browser. Source audio, the finished master, settings and reports are then uploaded for a private history. Reference audio stays on the device while matching. Completed audio is stored in Cloudflare R2. Account and task records are in PostgreSQL on DigitalOcean. Cloudflare hosts the site. Google sign-in stores an account identifier, email and display name, and does not request Gmail, Drive or contacts. Card numbers are not stored.
- The privacy page says the audio is not sold and is not used to train AI models. Saved results remain until deletion is requested, or until storage is discontinued with notice. Audio still only in browser memory is lost when the page closes.
- A guest result is tied to that browser session and can be linked to an account if you sign in from the same session. The terms say you keep your rights in the audio, and that you authorize the service and its hosts to process and store it. They also say the saved copy is not a backup.
- The About dialog describes the upload, the eight profiles and the cloud save. It does not name a person or a company.