Audio Normalizer
LUFS metering & normalizing
Only for Mac
$5.99
Mac
Audio Normalizer measures and normalizes audio files to your reference loudness level — per the ITU-R BS.1770-4 standard, with true-peak limiting.
Your files never leave your Mac. A focused app for a technically demanding task.
CORE FEATURES
• LUFS metering per ITU-R BS.1770-4 (integrated loudness and peak level)
• Automatic normalization to Apple Podcasts (−16 LUFS) or any custom target
• Batch processing of entire folders with persistent queue
• Watch folders: new files are normalized automatically
• System notifications when a batch completes
• Four presets: Spotify/YouTube (−14), Apple Podcasts (−16), ACX (−20), EBU R128 (−23)
EVERYWHERE IN THE SYSTEM
• AppleScript: Script Editor, Automator, third-party apps
• Finder Service: right-click any audio file → Normalize
• Siri Shortcuts: voice control and workflow automation
SUPPORTED FORMATS
• Input: WAV, MP3, FLAC, M4A, AIFF
• Output: WAV (lossless), M4A (compressed)
39 LANGUAGES
Fully localized interface, live-switchable in the settings.
PRIVATE, SAFE, OPEN
• Fully sandboxed (App Store standard)
• No data collection, no trackers, no analytics
• No ads, no subscriptions — one-time purchase
• Security-scoped bookmarks for persistent folder access
REQUIREMENTS
macOS 14.0 Sonoma or newer · Universal (Apple Silicon and Intel)
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor bug fixes
Normalized files used to come out unnecessarily large — this is fixed.
Lossless formats are unchanged: WAV and AIFF
The developer, Henry Bauer, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Henry Bauer
- Size
- 5.4 MB
- Category
- Music
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
English and 38 more
- English, Arabic, Belarusian, Bulgarian, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hindi, Hungarian, Icelandic, Indonesian, Irish, Italian, Japanese, Korean, Latvian, Lithuanian, Maltese, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian, Welsh
- Age Rating
4+
- 4+
- Copyright
- © 2026 Henry Bauer

