About Peace Equalizer
An independent resource dedicated to helping you get the most from the best system-wide audio equalizer on Windows.
Peace Equalizer — also known as Peace GUI — is a free, open-source graphical interface for Equalizer APO that brings system-wide audio control to every Windows user. Whether you are fine-tuning headphone response curves, correcting room acoustics, or simply boosting bass for music, Peace gives you the tools that were previously locked behind expensive hardware or pro-audio software.
Built by a single developer and downloaded more than 30,000 times every week, Peace has grown into one of the most trusted audio tools in the Windows ecosystem. Audiophiles on Reddit, Head-Fi regulars, and casual users all rely on it daily.
The Story Behind Peace Equalizer
From a simple config editor to the most popular Equalizer APO frontend.
The Beginning
Equalizer APO shipped with a basic text-based configuration editor. Users had to manually type filter commands to adjust audio. Peter Verbeek (“peverbeek”) started building Peace as an AutoIt-based GUI wrapper to make Equalizer APO accessible to regular users.
Growing Features
Peace gained multi-channel support (5.1 and 7.1 surround), effects panels with crossfeed and reverb, and device-specific profiles. The interface expanded to include real-time frequency response graphs and peak meters, turning it into a full mixing console.
SourceForge Staff Pick
Peace was named SourceForge Project of the Month in July 2019, earning the “Staff Pick” and “Open Source Excellence” badges. Downloads accelerated as word spread across audiophile forums.
AutoEQ and MIDI
Integration with the AutoEQ database brought one-click correction curves for over 1,000 headphone models. MIDI controller support, automation profiles, and hearing test tools followed — transforming Peace from an equalizer into a complete audio toolkit.
Still Growing
Version 1.6.9.11, released November 2025, continues to refine stability and compatibility with Windows 11. With a 4.9/5 star rating across 134 reviews, Peace remains the go-to Equalizer APO frontend for tens of thousands of users worldwide.
What Peace Equalizer Does
A system-wide parametric equalizer and effects processor for every audio device on your PC.
31-Band Parametric EQ
Adjust up to 31 frequency bands per channel with full control over gain, frequency center, and Q factor. Shape your audio with surgical precision.
AutoEQ for 1,000+ Headphones
Load correction curves for your specific headphone model from the AutoEQ database. One click, and your headphones sound as the engineers intended.
System-Wide Processing
Peace applies to all audio on your system — Spotify, YouTube, games, voice calls. No per-app configuration needed. Every sound is processed through your EQ settings.
Effects and Mixing
Crossfeed for headphones, bass and treble boost, reverb, delay, virtual surround, channel routing, and downmix/upmix capabilities built right in.
Peace handles stereo headphones, 5.1 home theater setups, and 7.1 surround systems with equal confidence. Users can create device-specific profiles, automate switching based on which application is active, and even control settings with a MIDI controller.
The Developer
One developer, one vision: make pro-quality audio accessible to everyone.
Peter Verbeek
peverbeek on SourceForge
Peter Verbeek created Peace Equalizer as a solo project, writing it entirely in AutoIt. His goal was straightforward: take Equalizer APO’s powerful but text-based engine and wrap it in a GUI that anyone could use without reading documentation or writing filter commands.
Peace is released under the GNU General Public License v2.0, keeping it free and open-source. Peter distributes the software exclusively through SourceForge and actively warns users about unofficial download sites that may bundle malware or adware.
Why People Rely on Peace
From casual listeners to professional audio engineers, Peace has earned a loyal following.
Frequently recommended on r/headphones, r/audiophile, and r/oratory1990 as the best way to run Equalizer APO. Users praise its flexibility, AutoEQ integration, and the fact that it is completely free with no paid tier.
Rated 4.9 out of 5 stars on SourceForge with over 134 reviews. Head-Fi and Audio Science Review members describe it as “great” and “superb” — high praise from communities known for their critical standards.
Unlike paid alternatives such as Boom 3D ($39.95) or trial-limited tools like Letasoft Sound Booster, Peace offers the same depth of control at no cost. Compared to simpler free tools like FxSound, Peace provides far more granular parametric EQ control and multi-channel support.
About This Website
What peaceequalizer.net is and how it relates to the official project.
peaceequalizer.net is a fan-made, independent informational website. We are not affiliated with, endorsed by, or connected to Peter Verbeek or the official Peace Equalizer project in any way.
We built this site because we believe Peace Equalizer deserves a clean, accessible resource where users can find download links, setup guides, feature explanations, and answers to common questions — all in one place.
- We link to official sources — we do not host or modify software files
- We respect the developer’s intellectual property and open-source license
- Our guides are based on public documentation, community knowledge, and hands-on testing
- We encourage every user to support the official project on SourceForge
Get in Touch
Have questions, suggestions, or feedback about this website?
Visit our Contact page to reach us. For official Peace Equalizer support, bug reports, or feature requests, please visit the official SourceForge project page.