Screen shot of K-Meter


Implementation of a K-System meter according to Bob Katz’ specifications.

K-Meter supports mono, stereo and 5.1 surround sound signals. All meters have been thoroughly validated. The average meter reads either RMS levels or ITU BS.1770-1 loudness weighted levels.


K-Meter was featured in an article by NPR Labs. Also, some users have reported that they use K-Meter for teaching, while others use it professionally such as in post-production.

I have merely added this section to show you that while K-Meter is free software, it delivers (at least) the same quality that you would expect from commercial software.


Windows 7 (and above)
LV2 plug-in
VST2 plug-in
VST3 plug-in
stand-alone executable

VST logo

As K-Meter was coded using cross-platform code, it should be easy to compile a version for Mac OS X. Unfortunately, I happen to not have a Mac…

In case you want to help, please see the manual for ways to contact me. You’ll need sufficient experience in coding, compiling and debugging, though, so no beginners please!


The current version is 2.8.0 (built on 2018-07-23). It requires a processor which supports the SSE2 instruction set. On Windows systems, you may also have to install the Visual C++ Redistributable for Visual Studio 2017.

The manual is located in the subdirectory „kmeter/doc“, which also contains the release notes with information on changes and new features. The source code can be downloaded from GitHub.

System Version Bits Release
GNU/Linux 2.8.0 32 bit LV2 plug-in
VST2 plug-in
64 bit LV2 plug-in
VST2 plug-in
Windows 7 2.8.0 32 bit VST2 plug-in
VST3 plug-in
64 bit VST2 plug-in
VST3 plug-in


Installation is easy: simply extract the files to the kmeter/skins directory. If you create a nice skin for K-Meter, please contact me so I can add it to this download section.

Bug reports

Please report bugs using the K-Meter bug tracker. You may also use the bug tracker to place your wishes or ideas.


K-Meter is free software, and I’m not going to ask for money. Period.

In case you still want to show your gratitude, simply donate to a cause of your choice and tell me about it. Thanks!


This is free software and licensed under the GNU General Public License version 3 (GPLv3).

Please note, however, that the VST2 SDK is not free. I provide a VST2 plug-in because it is a de facto standard that makes life easier for musicians and engineers who just want to make some great sounding albums.

But if you are a free software advocate, you might not want to use the VST2 plug-in. The pre-built GNU/Linux stand-alone, LV2 and VST3 plug-ins really are free software in the sense of the Free Software Foundation.

K-Meter traKmeter