Drop a track to measure its integrated LUFS, true peak, loudness range and dynamic range - instantly, in your browser.
Everything is measured right in your browser. Your audio never leaves your device - nothing is uploaded.
Check how loud your track really is. Drop an audio file and this free online loudness meter measures its integrated LUFS, short-term and momentary loudness, true peak in dBFS, loudness range (LRA) and crest factor, to the ITU-R BS.1770 / EBU R128 standard, and draws the waveform with an energy curve. Everything runs right in your browser: nothing is uploaded, no plugin, no sign-up. See instantly whether your master sits at the -14 LUFS streaming target or needs more headroom.
From an audio file to a full LUFS and dynamics readout in three steps, free and instant in your browser.
Drop an audio file (MP3, WAV, M4A, FLAC, OGG) onto the meter or pick a song from your library. It's decoded locally, nothing leaves your device.
Instantly see integrated LUFS, short-term and momentary maxima, true peak in dBFS, loudness range and crest factor, with the waveform and energy curve.
Compare your integrated LUFS to the -14 LUFS streaming target and adjust your master for the loudness your platform expects.
A full EBU R128 readout, not just a number, loudness, peak, dynamics and waveform in one place.
The meter applies ITU-R BS.1770 K-weighting and gating to report the integrated LUFS your distributor and streaming platforms actually measure, plus short-term and momentary loudness.
See the highest peak in dBFS at a glance, so you can leave enough headroom and avoid the clipping and inter-sample peaks that crush a master after encoding.
Loudness range (LRA) and crest factor reveal how much life a track keeps. Spot an over-compressed, lifeless master before it leaves your room.
The track is drawn as a waveform with an energy curve over it, so you can see where it gets loud, where it breathes, and how the dynamics move through the song.
Anyone who needs a track to hit the right loudness for where it's going to play.
Check loudness and headroom while you balance a mix.
Hit the exact LUFS target for each release and platform.
Make sure a beat or master is competitive but not crushed.
Meet podcast loudness specs around -16 LUFS for clear speech.
Stay inside broadcast and streaming loudness rules.
Match audio loudness across videos, reels and shorts.
Level tracks so a set stays consistent from song to song.
Verify dialogue and music sit at the right loudness.
Ship masters that sound right on every streaming service.
Know exactly how loud your track is before it reaches a single listener.
Streaming services turn loud masters down to about -14 LUFS. Measure first and you keep your dynamics instead of handing the platform a flat, turned-down track.
A high LUFS with a tiny loudness range is the signature of an over-limited master. See it on the meter and dial the loudness war back before release.
The whole measurement runs in your browser with the Web Audio API, no plugin, no app, no account, and your audio never leaves your device.
“I drop every master in here before it ships. Integrated LUFS, true peak and loudness range in one screen, in the browser, it's become my quick sanity check against the -14 target.”
“Our network wants episodes near -16 LUFS and this is the fastest way to confirm it. No plugin to load, no upload, I check an export in seconds and know it'll pass.”
“Seeing the loudness range next to the LUFS number changed how I master. I caught how flat my mixes were getting and pulled the limiter back. The dynamics readout is gold.”
You can see exactly where your track sits against the streaming target. Take the next step and polish it to a release-ready level with our AI Mastering tool.
