Audio Normalizer
Adjust audio levels using peak, RMS, or LUFS normalization. Presets for Spotify, YouTube, Apple Music, and podcasts. Free, browser-based.
Drop an audio file here or click to browse
WAV and MP3 supported
Three steps to get started
Upload your audio file
Drag and drop a WAV or MP3 file onto the upload area. The tool instantly analyzes your audio and shows Peak, RMS, and LUFS levels.
Choose mode and target
Select Peak, RMS, or LUFS normalization. Use platform presets (Spotify, YouTube, Apple Music, Podcast) or set a custom target level with the slider.
Normalize and download
Click "Normalize" to process. Review the before/after levels and gain applied, then download the normalized file in the same format as the original.
Professional audio normalization in your browser
Audio files from different sources often have inconsistent volume levels. Whether you're preparing tracks for Spotify, mastering a podcast for Apple Podcasts, or getting audio ready for YouTube — this tool measures and adjusts your loudness to match the exact target each platform requires.
Three normalization modes: Peak normalization scales to the loudest sample — simple and fast. RMS normalization targets average power for consistent volume across tracks. LUFS normalization (ITU-R BS.1770) is the industry standard used by every major streaming platform — it applies K-weighting filters that model human hearing perception and uses gated measurement to ignore silent passages.
Platform presets: One-click buttons for Spotify (-14 LUFS), Apple Music (-16 LUFS), YouTube (-14 LUFS), podcasts (-16 LUFS), broadcast (-23 LUFS / EBU R128), and loud CD masters (-9 LUFS). Or set any custom target with the slider.
Everything runs entirely in your browser. No audio data is transmitted to any server, making this safe for unreleased music, client recordings, and private audio.