🎵 Professional Mastering Made Simple
Transform your music into streaming-ready tracks in minutes. No expensive studio sessions, no complicated software—just upload, preview, and export.
Try It Free📤 Upload Your Track
Simply click to select your audio file (MP3, WAV, or other formats) and upload it to the mastering engine. No account required to start.
Supported formats: MP3, WAV, FLAC, AAC, and more
File size: Up to 50MB per track
🎚️ Choose Your Sound
Select from 5 professionally crafted mastering presets, each designed for different music styles and platforms:
- 🎵 Universal: Balanced for all genres (FREE)
- 💎 Clarity: Enhanced detail and presence (FREE)
- 🌿 Natural: Warm and organic sound (FREE)
- 🔥 Fire: Aggressive, modern punch (PREMIUM)
- 🎛️ Studio: Professional mix-ready (PREMIUM)
Not sure which to choose? Preview them all for free before exporting!
👂 Listen & Compare
Hear your track instantly processed with the selected preset. Switch between presets in real-time to find the perfect sound for your music.
Features:
- ✓ Real-time audio playback
- ✓ Visual waveform display
- ✓ Instant preset switching
- ✓ LUFS normalization preview
Free presets even let you adjust parameters like saturation, compression, and stereo width!
⚙️ Fine-Tune (Optional)
With free presets, you have full control over mastering parameters:
- 🎛️ Harmonic saturation
- ✨ Vocal air enhancement
- 🔊 Low-end punch
- 📻 Stereo width
- 🎚️ Compression amount
- 🌊 Reverb depth
Premium presets (Fire & Studio) are expertly tuned and locked for consistent professional results.
📊 Platform Optimization
Automatically adjust loudness to meet platform standards. Choose your target streaming service:
- 🎵 Spotify/YouTube/Tidal: -14 LUFS
- 🍎 Apple Music: -16 LUFS
- 🎶 Amazon Music/Deezer: -13 LUFS
- 📻 Soundcloud/Mixcloud: -11 LUFS
Your track will sound perfect on every platform—no more quiet uploads!
💾 Export & Download
Love the sound? Export your professionally mastered track in seconds.
What you get:
- ✓ High-quality WAV file
- ✓ LUFS normalized for your platform
- ✓ Peak limiting to prevent clipping
- ✓ Professional mastering processing
Free tier: 5 exports/month with free presets
Premium credits: $1.99 per export with Fire/Studio
PRO subscription: Unlimited exports with all presets
✨ Why Mastering Engine?
Professional results without the professional price tag
Lightning Fast
Preview presets in real-time and export in seconds. No more waiting hours or days for masters.
Affordable Pricing
5 free exports monthly, or go PRO for $9.99/month ($95/year). Studio mastering costs $50-200 per track.
Platform Ready
Automatic LUFS normalization ensures your tracks sound perfect on Spotify, Apple Music, YouTube, and more.
Full Control
Free presets offer complete parameter customization. Premium presets are expertly tuned for consistent quality.
Try Before You Buy
Preview all premium presets for free. Only pay when you're ready to export the perfect master.
No Software Install
Works entirely in your browser. No downloads, no plugins, no complicated DAW setup required.
Traditional Mastering vs. Mastering Engine
❌ Traditional Studio Mastering
- 💸 $50-200 per track
- ⏰ 1-7 days turnaround
- 📧 Email back-and-forth for revisions
- 🎚️ Limited to engineer's judgment
- 💳 Pay for every revision
- ❓ Can't preview before paying
- 🏢 Requires studio booking
✅ Mastering Engine
- 🆓 5 free exports/month
- ⚡ Instant results (seconds)
- 🔄 Unlimited preset previews
- 🎛️ Customize free presets yourself
- 💎 $1.99 per premium export
- 👂 Try all presets for free first
- 🌐 Works anywhere, anytime
❓ Frequently Asked Questions
Do I need an account to try it?
No! You can upload a track and preview all presets without creating an account. You only need to sign up when you're ready to export.
What's the difference between free and premium presets?
Free presets (Universal, Clarity, Natural) offer full parameter customization and 5 exports per month. Premium presets (Fire, Studio) are professionally optimized with locked settings for consistent high-quality results, requiring credits or PRO subscription.
Can I preview premium presets before buying?
Yes! You can preview Fire and Studio presets with your track for free. You only pay when you're ready to export the final mastered file.
What audio formats are supported?
We support MP3, WAV, FLAC, AAC, M4A, and other common audio formats. Files up to 50MB are accepted.
What is LUFS normalization?
LUFS (Loudness Units Full Scale) is the standard for measuring audio loudness. Each streaming platform has target levels—we automatically adjust your track to meet these standards so your music sounds great everywhere.
How does the PRO subscription work?
PRO gives you unlimited exports with all presets (including Fire & Studio premium presets). Choose monthly ($9.99) or yearly ($95—save $25!). Cancel anytime.
Can I use the mastered tracks commercially?
Yes! All tracks you export are yours to use however you want—release on streaming platforms, sell, license, or distribute freely.
What if I don't like the results?
That's why we let you preview! Try all presets with your track before exporting. If you're still not satisfied, our free presets offer full customization, or reach out to support for guidance.
Ready to Master Your Music?
Start with 5 free exports. No credit card required.
Try Mastering Engine Free