Spotify Loudness & Release-Readiness Checker
Check if your song has commercial volume and punch to compete on Spotify. Test your audio file in real time directly in your browser before distribution.
Upload or drop audio file to check loudness & release-readiness
Supports WAV, MP3, FLAC, OGG, M4A — 100% Client-side analysis in your browser
Understanding Spotify Normalization & Penalty Risks
Spotify normalizes audio playback to an integrated target of -14.0 LUFS by default. If your track is louder than -14 LUFS, Spotify's loudness management turns the track down to prevent sudden volume spikes. As long as your True Peak ceiling is kept at or below -1.0 dBTP, louder commercial masters (averaging -9 to -8 LUFS) retain their punch, transient impact and competitive energy across playlist playback.
How the Free Online Loudness Checker Works
Our compliance checker runs 100% client-side inside your browser using the HTML5 Web Audio API. Your audio data is never uploaded to external servers for this test. The analyzer measures EBU R128 Integrated LUFS, Loudness Range (LRA) and True Peak levels to verify if your master is safe from lossy transcoding distortion.
- • Target Compliance: Compares integrated volume against Spotify (-14 LUFS) and commercial club standards (-8.5 LUFS).
- • True Peak Distortion Protection: Flags inter-sample peaks exceeding -1.0 dBTP to avoid MP3/AAC encoder clipping.
- • Lossless & Compressed Formats: Supports instant scanning for WAV, MP3, FLAC, OGG and M4A audio files.