OpenLogi — Open-Source Logitech Options+ Alternative

Introduction

OpenLogi is a privacy-respecting replacement for Logitech Options+. It communicates directly with Logitech mice over the HID++ protocol, letting you remap buttons, tune DPI profiles, and configure SmartShift without creating an account or sending data to the cloud.

What OpenLogi Does

• Remaps mouse buttons to custom actions and key combinations
• Adjusts DPI settings per-profile with fine-grained control
• Configures SmartShift scroll behavior on supported devices
• Runs entirely locally with zero network telemetry
• Supports Logitech MX Master and similar HID++ devices

Architecture Overview

OpenLogi is built in Rust using the GPUI framework for its desktop interface. It communicates with Logitech devices over USB HID using the HID++ protocol, the same binary protocol that Logitech Options+ uses. All configuration is stored locally on disk, and no background daemon phones home.

Self-Hosting & Configuration

• Available as a standalone desktop application for macOS and Linux
• Configuration files are stored in the user's home directory
• No cloud account or login required
• Device profiles can be exported and imported as JSON
• Requires USB HID access permissions on Linux (udev rules)

Key Features

• Full button remapping including gesture-based actions
• Per-application DPI and button profiles
• SmartShift threshold and speed configuration
• Clean, modern UI built with Rust and GPUI
• No telemetry, no account, no cloud dependency

Comparison with Similar Tools

• Logitech Options+ — official but requires an account and sends telemetry; OpenLogi is fully local
• Solaar — Linux-only with a GTK interface; OpenLogi targets cross-platform with a modern Rust UI
• LogiOps — daemon-based Linux solution; OpenLogi provides a graphical interface
• Piper (libratbag) — focused on gaming mice; OpenLogi targets productivity peripherals

FAQ

Q: Which Logitech devices are supported? A: Devices using the HID++ protocol, primarily the MX Master series. Check the README for a full compatibility list.

Q: Does it work on Windows? A: The primary targets are macOS and Linux. Windows support is in development.

Q: Can I run it alongside Logitech Options+? A: It is recommended to uninstall Options+ to avoid conflicts over HID device access.

Q: Is the HID++ protocol documented? A: Partially. OpenLogi relies on community reverse-engineering of the protocol, which is well-understood for common operations.

Sources

• https://github.com/AprilNEA/OpenLogi