Audio Mastering

Upload your track, choose your settings, and get a professionally mastered file — free, runs entirely in your browser.

About the AI Mastering Tool

The AI Mastering Tool allows you to professionally master your music tracks using advanced AI-powered mastering technology. Upload your mixdown, choose your target loudness, style, and reference profile, and receive a streaming-ready master in minutes. The tool connects to a professional mastering API to apply loudness normalization, multiband compression, limiting, and stereo enhancement — the same processes used in professional mastering studios.

Target Loudness Control

Set your target integrated loudness (LUFS) to match the requirements of Spotify, Apple Music, YouTube Music, or any streaming platform.

Style Presets

Choose from multiple mastering style presets — bright, warm, balanced — to match the genre and sonic character of your track.

AI Processing

The mastering engine applies multiband compression, limiting, EQ, and stereo widening using AI models trained on professionally mastered commercial releases.

Streaming-Ready Download

Receive a mastered file that meets the loudness and true peak standards of all major streaming platforms.

Select Audio File
Drop an audio file here or click to browse
MP3, WAV, FLAC, AIFF, OGG — max 200 MB
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Mastering Options

Spotify, Apple Music, YouTube use -14 LUFS.

Mastering Complete
BEFORE (Original)
0:00
AFTER (Mastered)
0:00
Input Loudness —
Output Loudness —
Gain Applied —
Output Format —
Style —
Platform Standard —
Download Mastered File
How It Works

This tool processes your audio entirely in your browser using Web Audio API — nothing is uploaded to any server. The mastering chain applies professional DSP: rumble removal, dynamic compression, air-band EQ, loudness normalization, and peak limiting, then delivers a download-ready file.

Processing Chain
1. Rumble Filter
High-pass at 40 Hz — removes sub-bass noise and mic rumble.
2. Compression
Dynamic range control. Reduces loud peaks, brings up quiet parts.
3. Air EQ
Subtle high-shelf boost at 10 kHz — adds brightness and presence.
4. LUFS Normalize
Applies gain to hit your chosen target loudness exactly.
5. Peak Limiter
Hard ceiling at -1 dBFS — prevents clipping and distortion.
Target Loudness — Platform Reference
LUFS Platform / Use Case Notes
-8 LUFS Club, DJ sets Maximum loudness. Will be turned down on streaming platforms.
-10 LUFS Loud / Aggressive masters EDM, hip-hop. Still loud. Platforms may normalize.
-12 LUFS Streaming — Aggressive Slightly above standard. Competitive loudness.
-14 LUFS Spotify, Apple Music, YouTube Recommended default. Platform normalization target.
-16 LUFS Streaming — Dynamic More dynamic range. Good for acoustic and classical.
-18 LUFS Broadcast (US) Television / radio — ATSC A/85 standard.
-23 LUFS Broadcast EU (R128) European Broadcasting Union standard.
100% Private. All processing happens inside your browser. Your audio file is never uploaded to any server and never leaves your device.
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Release Your Music Worldwide

Distribute to Spotify, Meta, YouTube Music, Amazon, JioSaavn, and many major platforms. Keep 100% of your rights — no label, no middleman.

Your music stays live — forever

Frequently Asked Questions

What is audio mastering and why do I need it?

Mastering is the final step in music production. It prepares your mix for distribution by applying loudness normalization, dynamic control, EQ balance, and stereo optimization so your track sounds consistent across all playback systems and meets streaming platform technical requirements.

What loudness level should I target for streaming?

Spotify recommends –14 LUFS integrated loudness, Apple Music recommends –16 LUFS, and YouTube normalizes to –14 LUFS. Most mastering engineers target –14 LUFS as a safe level that avoids significant volume reduction on all platforms.

Is my audio file uploaded to a server when I use this tool?

Yes — the AI Mastering Tool uses a professional mastering API to process your audio. Your file is uploaded securely to the mastering service for processing and is not stored permanently. Client-side-only processing is not possible for AI mastering, which requires significant computational resources.

What file formats does the mastering tool accept?

The mastering tool accepts WAV and AIFF files for the best results. These lossless formats give the mastering engine the highest quality input to work with. MP3 files can also be uploaded but the output quality will be limited by the compressed input.

What is the difference between different mastering style presets?

Style presets adjust the overall tonal balance of the master. A bright preset boosts high frequencies for a crisp, airy sound. A warm preset emphasizes low-mids for a rich, full sound. A balanced preset applies neutral processing suitable for most genres.

Can I use the mastered file for commercial distribution?

Yes. The mastered file you download is yours to distribute on any platform without restrictions. It is formatted to meet the technical delivery requirements of Spotify, Apple Music, Amazon Music, and other major streaming services.