Streaming
Level Checker

See how Spotify, Apple Music, YouTube and other platforms will adjust your track's volume.

  • Accurate loudness & peak measurement
  • 7 major streaming platforms analyzed
  • 100% private - runs in your browser

Streaming Level Checker

See how platforms will adjust your volume

Drop your track here

MP3, WAV, FLAC supported

100% Private
Free & Unlimited
Instant Results

How It Works

Four simple steps to check your streaming levels.

1

Drop your audio file

  • Drag & drop any audio file into the analyzer.
  • Works with MP3, WAV, FLAC, and other common formats.
  • Runs entirely in your browser - no uploads, no servers.
2

Instant loudness analysis

  • Accurate loudness measurement using industry standards.
  • Frequency-weighted filtering for perception-based results.
  • Peak detection to catch any potential clipping issues.
3

See platform predictions

  • View predicted volume changes for Spotify, Apple Music, YouTube & more.
  • Know if your track will be turned down or boosted.
  • Get alerts for potential limiting or clipping.
4

Master with confidence

  • Adjust your levels before uploading to streaming platforms.
  • Avoid having your track turned down unnecessarily.
  • Ensure consistent playback volume across all platforms.

Your Audio Stays Private

Unlike cloud-based analyzers, this tool runs entirely in your browser.

100% Client-Side

Your audio never leaves your device. All analysis happens in your browser using Web Audio API.

No Data Collection

We don't collect, store, or transmit any audio data. Your music stays private and secure.

Instant Processing

No upload times or server queues. Analysis starts immediately when you drop your file.

Works Offline

Once the page loads, the analyzer works without an internet connection. Perfect for studio sessions.

This analyzer uses industry-standard loudness measurement with frequency weighting and gated measurement for accurate results.

FAQ

Common questions about streaming levels and loudness.

LUFS (Loudness Units Full Scale) measures perceived loudness rather than just peak levels. Streaming platforms use LUFS to normalize all tracks to a consistent volume, so understanding your track's LUFS helps you master appropriately and avoid unwanted volume adjustments.
When you upload a track that's louder than a platform's target (e.g., -14 LUFS for Spotify), the platform will automatically turn it down. If your track is -8 LUFS and Spotify targets -14 LUFS, your track gets turned down by 6 dB.
It depends on the platform. Spotify will boost quiet tracks (and apply limiting if needed to prevent clipping). Apple Music will boost but is limited by headroom. YouTube does not boost quiet tracks at all - they play at their original volume.
Streaming platforms transcode your audio to lossy formats (AAC, Ogg), which can increase peaks by 0.5-1 dB. Leaving some headroom (-1 dB or lower) prevents distortion after transcoding.
It depends on your goals. For maximum dynamic range, master to -14 LUFS (Spotify/YouTube target). For Apple Music, -16 LUFS is optimal. Tracks above -14 LUFS will be turned down on most platforms.
In Track mode, each song is normalized individually. In Album mode (used when playing albums in order), a single gain is applied to all tracks to preserve the artist's intended volume relationships between songs.
This analyzer uses the same measurement standard as professional studios and streaming platforms. Results are typically within 0.5 dB of professional hardware meters.
No. All analysis happens entirely in your browser. Your audio files never leave your device, making this tool completely private and safe for unreleased music.

Need more info?

Check out our Help Center