iem

Open-source WebHID hardware PEQ flasher & host DSP suite for portable USB-C DACs and IEMs

Open EQ app for the Moondrop FreeDSP USB-C cable on Android: presets, profiles, parametric EQ and auto-fit to target curves.

578 headphones and 280 headphone amps, dongles and interfaces from manufacturer specs, with provenance for every figure. CC BY 4.0

Vue frontend for IEM mining GPT experiments

On-the-go EQ manager for the CrinEar Protocol Micro, Protocol Max, FiiO KA15, FiiO K13 R2R, SnowSky Melody, SnowSky Tiny A and TRN Black Pearl: keep your EQ profiles on your Android phone, plug the DAC in and send one in seconds.

Check the left/right balance of your IEMs, earbuds or headphones using your PC's microphone, and fix it with the Windows balance. Free, offline, Windows.

Lowers Windows audio volume above your limit, to protect your hearing and IEMs from 100% spikes on plug-in, reconnect, or wake. Portable 94 KB exe, no installer.

Typio is an English IEM for non-native speakers on macOS.

Open-source personal in-ear monitoring system.

Tune the EQ inside the Moondrop CHU 2 DSP earphones, from Windows. Unofficial, MIT.

Free, open-source system-wide equalizer for macOS that detects each track's genre and applies a matching EQ preset automatically. Menu bar app, Core Audio process tap — no virtual audio driver, no kernel extension.

Free local-first FPS audio setup and tuning lab for Windows players: device scan, mic checks, starter EQ tunes, Sound Match, and redacted reports.

🎧 All-in-one offline tool for reviewing, tuning and comparing IEMs. Rust core, Tauri desktop app, cross-platform builds. Based on IEM Tool by MyLittlePrimordia.

Psychoacoustic-aware 8–128 band parametric EQ optimizer for IEM. Takes stereo measurements and a target curve, outputs a ready-to-use PEQ preset.

MCP server for AutoEQ headphone equalization database — search, compare, and get EQ settings for 8800+ headphones/IEMs

*The* Open-Source IEM.

A web-based tool for designing and simulating RLC crossover networks for In-Ear Monitors (IEMs). Upload driver data, build crossovers, and visualize how they affect the final sound with accurate ear canal simulation.

Set up your very own IEM Pro instance on a Kubernetes cluster using K3s

IEM AutoEQ profiles for APO/Peace and wavelet

This is a simple C# version of the IEM, support for bubi input, pinyin input. 这是一个简单C# 版输入法，支持五笔输入、拼音输入。