Streaming Loudness Checker Online
Compare audio across Spotify and Apple Music loudness references. Measure LUFS and peaks, then review gain estimates and available headroom.
READY TO ANALYZE
Drop your audio here
Up to 50 MB · 5 minutes · Mono or stereoYour measurements will appear here
Choose your audio and start the check.
Do I need a different master for every platform?
A strong master can work across several services. The comparison shows how gain changes affect level and peak headroom. Platform settings, album context, and playback processing can change the final listening level.
Compare without changing the file
This check measures your original file. An estimated gain is a reference calculation, not an edited master. Use Audio Normalizer when you want a new WAV at a chosen level, and listen to that export before release.
Questions about this tool
Do I need a different master for every platform?
A strong master can work across several services. The comparison shows how gain changes affect level and peak headroom. Platform settings, album context, and playback processing can change the final listening level.
Can I download the result?
Yes. Analysis tools provide a report you can save. Audio Normalizer and Volume Booster also create a WAV you can play and download. Keep the page open until your result has arrived.
Which files can I check?
Upload mono or stereo WAV, MP3, M4A, AAC, FLAC, OGG, OPUS, or WebM audio, up to 50 MB and five minutes. The measured file keeps its original channels.