Youlean Loudness Meter

Youlean Loudness Meter is your ultimate free VST, VST3, AU and AAX plugin for loudness measurement.


  • International standards compliance.
  • Resizable interface.
  • Histogram and distribution display.
  • Multi channel support.
  • Smart Loudness Memory.

International standards compliance

  • ITU-R BS.1770-4
  • EBU R128
  • EBU R128 S1
  • ATSC A/85
  • OP-59
  • ARIB TR-B32
  • AGCOM 219/09/CSP

Channel support

  • Mono
  • Stereo
  • 5.1 DTS
  • 5.1 ITU
  • 5.1 Film

Smart Loudness Memory

Smart Loudness Memory will speed up your workflow by saving all data with DAW session and recalling it after you reload the session.


V1.9.9 – BETA – July 20, 2018

  • Improved GUI performance
  • Added GUI animations
  • Added preview for PLR histogram
  • Fixed not being able to see the GUI interface
  • Fixed not being able to resize GUI interface in vMix
  • Fixed empty 2 button panel on GUI open
  • PRO – Added registration panel

V1.9.8 – BETA – June 28, 2018

  • Fixed “Pro Tools ran out of CPU power” bug
  • Added Audio Suite version of the plugin for Pro Tools
  • Changed GUI design (still work in progress)
  • Added option to check for updates from the plugin
  • Added “Pause Measurements” button
  • PRO – Added option to set focus on readouts
  • Resizing performance improvements 

V1.9.7 – BETA – May 7, 2018 

  • Fixed hold max values not resetting after a mouse click
  • Added AAX plugin type for macOS and Windows
  • Stability improvements

V1.9.6 – BETA – May 2, 2018 

  • Fixed VST3 not working in Studio One
  • Fixed VST3 not working in vMix
  • Fixed bug when moving color splits will freeze vMix

V1.9.5 – BETA – May 2, 2018

  • PRO – Added settings for PLR graph, alerts, optimizations
  • PRO – Added pdf export option
  • Fixed PLR-I measurement error after project reload
  • Optimized binary size
  • Reduced CPU usage by ~30%
  • Minor GUI tweaks

v1.9.4 – BETA – Apr 1, 2018

  • Fixed forced mono audio
  • Fixed some crashes

v1.9.3 – BETA – Apr 1, 2018

  •  Fixed broken v1.9.2 build that will crash sometimes

v1.9.2 – BETA – Mar 31, 2018

  • PRO – Added loudness target knob
  • Added check if a plug-in interface can fit the monitor screen
  • Added buttons to reset window size and scaling
  • Added loudness range display
  • Fixed crash when switching to 22050 Hz sample rate
  • Minor GUI bug fixes

v1.9.1 – BETA – Feb 28, 2018

  • Fixed Time Code behavior when “Auto Reset” feature is turned on
  • Minor small bug fixes

v1.9.0 – BETA – Feb 7, 2018

  • Added smooth color transition option
  • Added PLR-Short Term and PLR-Integrated readouts
  • Added second color split
  • Added true peak graph display
  • Added Getting Started window
  • Added true peak graph display
  • Extended range of true peak threshold to -30 dB
  • Optimized graphics for macOS retina and Windows HiDPI mode
  • Optimized graphics performance
  • Fixed preset recalling
  • Fixed most of the resizing problems on macOS
  • Better compatibility with macOS High Sierra using AU format
  • GUI design improvements
  • Stability improvements

v1.5.0 – BETA – Jun 4, 2017

  • Added GUI scaling. Activate by ctrl+drag on resizing handle
  • Added view modes
  • Added continuous mode
  • Added fine control for true peak threshold
  • Fixed crashes in Cubase – VST3 version
  • A lot of stability improvements
  • Minor graphical glitches fixes

v1.0.5 – Jan 12, 2017

  • Added macOS installer
  • Fixed settings not sticking after project reload
  • Fixed jump when changing window size with the mouse wheel
  • Improved scrolling with histogram control
  • macOS stability improvements
  • Minor graphical glitches fix

v1.0.4 – Dec 12, 2016

  • Added manual.
  • Fixed small bug when switching from auto to non-auto in Time Code mode
  • Fixed wrong integrated and loudness range measurements if play position has jumped in the playlist

v1.0.3 – Dec 8, 2016

  • Fixed random resetting transport in Bitwig Studio
  • Many fixes regarding transport

v1.0.2 – Dec 6, 2016

  • Fixed AU crash at load in Ableton Live
  • Fixed true peak detection
  • Fixed a button that pauses integrated and loudness range measurements

v1.0.1 – Dec 4, 2016 

  • Fixed missing libraries on macOS
  • Fixed volume boost in FL Studio
  • Fixed FL Studio crash while detaching the plugin
  • Fixed Reaper crash after play in Windows
  • Fixed minor graphical glitches

v1.0.0 – Nov 30, 2016

  • Initial release
Technical Details


  • Minimum OS version – Windows 7
  • Plugin formats – VST2, VST3


  • Minimum OS version – macOS 10.7
  • Plugin formats – VST2, VST3, AU

V2 version is around the corner!

Don’t miss the FREE updates!

Follow me on Facebook:

Or subscribe to newsletter:

Subscribe to Newsletter

Receive emails about updates and new product releases.


  • Latest BETA versions should be more stable than V1.0.5.
  • v1.9.9 will expire on September 1, 2018. Then, you will need to update plug-in with a newer BETA version.
  • PRO version will be available for the purchase with the v2.0.0 release.
  • AAX is available only in the latest BETA version.

Customer Reviews

Write a Review


The Best LUFS Meter I've Experienced.

5 5 1
When LUFS started to become mainstream, we started to see a lot of expensive commercial plugins. After seeing Youlean's Loudness Meter, I was amazed at his generosity for providing it FREE, but also including an attractive GUI and including the features we need to get the required results. I'm very grateful for the Youlean Loudness Meter, and excited for what Youlean has planned for the audio community in the future! # GratuiTous

Must have

5 5 1
As Audio engineer i always looking for a great metering plugin. Beside the metering tools in WaveLab Pro, i want a plugin that i also can use in other DAWs like Cubase Pro or Logic. With Youlean Loudness Meter i have a great tool. It fits to my needs and it is one of the best loudness meter. Thank you Youlean (Julijan) for your great software. It is already a must have plugin for me.


5 5 1
Every day I receive a lot of audio files, all in different loudness. Sometimes I have a conversation of 3 people recorded on 3 track on 3 different loudness level. Thanks god I have Youlean Loudness Meter! It helps me not to go crazy. Thank you for this amazing tool.

The best!

5 5 1
Just a top-notch plug-in for mastering, and it's friggin' FREE! What do you want more?

great plugin !

5 5 1
I use Youlean meter plugin for monitoring my streaming for see if the ebur128 rule is respected .It's very good plugin and very stable with last beta.

A fantastic plugin

5 5 1
I was on the hunt for a plugin that showed me different measurements for mixing tracks for TV, Radio production. I found Youlean and never had to go any further. I work in Ableton Live and I have never had a single problem with this plugin. The options to change measurement types is amazing and the flexibility of the loudness meter is just second to non!

Mixing & mastering engineer

5 5 1
Works great on PC & Mac, tried it on Cubase, Logic Pro X and Pro-Tools. The PDF option it cool and all the different loudness options are well presented. If there is a specific thing that you would like me to test, please send me an email. If i'll come across any problem, i will send you another review. Cheers!

Audio Director/Engineer

5 5 1
Thanks for a great free tool. I just ran it alongside another well-known meter to get some 'insight' 😉 on how it tracked on a tv recording session. It measured very well for OP59. Was tracking integrated loudness exactly in time with the other meter. Well done.

Sign up for the newsletter: