Mouser: A Desktop App for Smarter Logitech Mouse Control

Logitech mice are great. The hardware is solid, the sensors are fast, and they last forever. But the official software? It’s often bloated, slow, or just doesn’t give you the fine-grained control you want — especially if you’re a developer or power user who lives in keyboard shortcuts and custom workflows.

Enter Mouser, a free, open-source desktop app that gives you advanced control over your Logitech mouse without the overhead of Logi Options+ or G Hub. It’s lightweight, focused, and built with developers in mind.

What It Does

Mouser is a desktop application — built with Electron — that lets you remap buttons, adjust DPI, change polling rates, and configure profiles for your Logitech mice. It uses Logitech's HID++ protocol to communicate directly with the mouse hardware, so no background services or cloud accounts are needed.

Key features include:

• Remap any button to keyboard shortcuts, media controls, or custom actions
• Adjust DPI and polling rate (125 Hz to 1000 Hz)
• Create per-application profiles that switch automatically
• Store settings directly on the mouse (if supported)
• No telemetry, no login, no bloat

It also supports a growing list of Logitech mice — including popular models like the G502, G903, MX Master 3, and more.

Why It’s Cool

What makes Mouser stand out is not just its functionality — it’s how it’s built and what it doesn’t do.

No cloud, no accounts, no nonsense.
You download it, plug in your mouse, and start configuring. Everything is local. There’s no nag screen to sign up for Logitech’s ecosystem or sync to the cloud. For developers who value privacy and offline-first tools, this is refreshing.

Button remapping with real customizability.
You can map a button to a complex macro, launch an app, or even simulate a key chord like Ctrl+Shift+T. This makes it perfect for productivity workflows — think “forward thumb button opens a terminal” or “scroll wheel tilt switches desktop”.

Per-app profiles.
Mouser can detect which app is in focus and switch profiles automatically. So you could have a gaming profile for Valorant, a coding profile for VS Code, and a browsing profile for Chrome — all without touching a dropdown.

Open source and extensible.
The entire project is on GitHub, built in TypeScript/Electron. If you want to hack on it, add support for a new mouse, or just peek under the hood, it’s all there. The code is clean and well-structured.

How to Try It

You can grab the latest release from the GitHub repository:

• Download from GitHub Releases:
  https://github.com/TomBadash/Mouser/releases

Prebuilt binaries are available for Windows, macOS, and Linux (AppImage). No build steps needed — just download and run.

If you’re on macOS, you may need to grant accessibility permissions for Mouser to intercept mouse events. The app will walk you through that on first launch.

Final Thoughts

Mouser is one of those tools that fills a real gap. Logitech’s own software is tolerable at best, but if you want something fast, private, and actually developer-friendly, this is a strong alternative. It’s not trying to be everything — it’s just a good, focused utility for controlling your Logitech mouse the way you want.

If you’ve ever found yourself fighting with G Hub or Logi Options+ to get a simple remap working, give Mouser a shot. It might just become a permanent part of your dev setup.

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