Remap any button
Bind any of 41 built-in actions to each physical button, per device — custom keyboard shortcuts live in the TOML config.
HID++ over Bolt, Unifying, Bluetooth & wired · macOS + Linux
Your Logitech mouse, finally local.
A native, local-first alternative to Logitech Options+, written in Rust 🦀. Remap buttons, drive DPI and SmartShift over HID++ — with no account and no telemetry.
Download
$brew install --cask openlogi
Signed & notarized .dmg · Linux .deb/.rpmMIT / Apache-2.0Not affiliated with Logitech
41
built-in actions
0
accounts · telemetry · cloud
100%
local TOML config
The configurator
Click a button. Bind an action. Done.
This is the heart of the app — an interactive mouse diagram with clickable hotspots and a per-button action picker. Try it right here: pick a hotspot, then choose any of the built-in actions.
schema_version = 2selected_device = "2b042"[devices.2b042.bindings]MiddleClick = "MissionControl"DpiToggle = "CycleDpiPresets"Thumbwheel = "VolumeUp"Forward = "BrowserForward"Back = "BrowserBack"GestureButton = "AppExpose"
MX Master 4Writes straight to
config.toml — auto-switches per app.Features
Everything Options+ does — without the account.
OpenLogi drives your mouse over HID++ directly: buttons, DPI, SmartShift and per-app profiles, from a native app that never phones home.
DPI control & presets
Set pointer resolution and cycle your own presets, written straight to the sensor over HID++.
SmartShift
Flip the wheel between ratchet and free-spin, or let it switch automatically by scroll speed.
Per-app profiles
Layer per-application overlays that auto-switch the moment your focused app changes.
Bolt, Unifying, Bluetooth or wired
Reach devices over a Logi Bolt or Unifying receiver, a direct Bluetooth pairing, or a USB cable — no receiver required.
Live device view
A carousel of paired devices with battery percentage and charge state for everything online.
Local-first
Your mouse. Your machine. Nothing in between.
No account, no telemetry, no cloud. Bindings live in a plain TOML file you own, and every change is written straight to the device over HID++.
- No account, everNothing to sign up for — launch it and it works.
- Zero telemetryNo analytics, no usage tracking, no crash phone-home.
- Plain-text configEvery binding, preset and profile lives in one readable TOML file.
- Open sourceDual-licensed MIT / Apache-2.0 — read or fork every line.
Install
Up and running in a minute.
Signed builds for macOS, Linux and Windows — pick your platform below. Step-by-step setup lives in the docs.
macOS
$brew install --cask openlogi
Download .dmgHomebrew is recommended — or grab the signed .dmg for Apple silicon or Intel.
Quit Logi Options+ before launching — the two fight over HID++ access, and only one app can own a receiver at a time. On Linux, the same applies to Solaar.
FAQ
Questions, answered.
Is OpenLogi made by Logitech?
No. It's an independent, open-source project, not affiliated with or endorsed by Logitech. "Logitech", "MX Master" and "Options+" are their trademarks.
Do I have to quit Logi Options+?
Yes. OpenLogi and Options+ both speak HID++ to the same device, and only one can own a receiver at a time — quit Options+ (including its menu-bar agent) first.
Which mice are supported?
MX Master 4, 3S and 3, MX Anywhere 3, Signature M650 and Ergo M575 — over a Logi Bolt or Unifying receiver, direct Bluetooth, or USB. Wired G-series keyboards get RGB lighting control.
Does it run on Linux or Windows?
macOS and Linux are supported today — Linux ships .deb/.rpm packages with udev rules and a systemd user unit. Windows is an early, untested preview; signed builds ship with each release.
Does it need an account or send telemetry?
Neither. The only network calls are device-image downloads and an opt-in update check that's off by default — everything else stays on your machine.
Where are my settings stored?
In a single plain-text TOML file. The GUI writes your bindings, presets and profiles to it directly, the Settings window covers app-wide preferences, and the file stays hand-editable.