What is HotkeyClash? Overview of the macOS Shortcut Conflict Detection App
When using macOS, duplicate keyboard shortcuts across multiple apps or system-wide settings can cause unintended actions. HotkeyClash is a free menu bar app that automatically detects these shortcut conflicts.
📑Table of Contents
- What is HotkeyClash? Overview of the macOS Shortcut Conflict Detection App
- Main Features and Mechanism (Accessibility API, Karabiner Parsing, System Shortcut Support)
- Installation Methods (DMG / Homebrew cask)
- Initial Setup and Accessibility Permission Grant Steps
- How to Use and View the Shortcut List
- Conflict Classification (Deterministic vs Potential) and Severity Display
- Summary: Why Recommended for BetterTouchTool Users
- Frequently Asked Questions (FAQ)
- Table: Feature Comparison Summary
The app scans menu bar shortcuts from running applications, parses configs from Karabiner-Elements and skhd, and lists duplicates. According to the coliss.com article (https://coliss.com/articles/build-websites/operation/work/hotkeyclash-for-mac-keyboard-shortcuts-clash.html), HotkeyClash runs purely on Apple frameworks with no external dependencies.
For developers and power users, managing shortcuts is a daily challenge. HotkeyClash provides a simple solution.
Main Features and Mechanism (Accessibility API, Karabiner Parsing, System Shortcut Support)
The core of HotkeyClash is scanning menu bar shortcuts via macOS Accessibility API. This accurately retrieves keys assigned to menu items in each app.
It also parses Karabiner-Elements and skhd config files to incorporate global and app-specific shortcuts. macOS system shortcuts like Spotlight (⌘Space), Mission Control, and screenshots are also read.
Detected shortcuts are displayed with app icons and source badges, and a detail pane shows conflict causes. As described in the coliss.com source (https://coliss.com/articles/build-websites/operation/work/hotkeyclash-for-mac-keyboard-shortcuts-clash.html), conflicts are sorted by severity for quick resolution of high-priority issues.
This mechanism makes it easier to identify conflicts even when used alongside tools like BetterTouchTool.
Installation Methods (DMG / Homebrew cask)
Installing HotkeyClash is straightforward. Download the DMG from the official site (https://hotkeyclash.com/) or use Homebrew cask.
The Homebrew command is:
brew install --cask wunderlandmedia/tap/hotkeyclash
The GitHub repo (https://github.com/Wunderlandmedia/HotkeyClash) provides source code under GPL v2.0, free for personal and commercial use. The coliss.com article documents the Homebrew command.
Initial Setup and Accessibility Permission Grant Steps
On first launch, grant Accessibility permission in System Settings > Privacy & Security > Accessibility.
Without permission, menu shortcut scanning fails and conflict detection does not work. After granting, the menu bar icon appears, and the app opens with Shift + Command + H. The coliss.com article (https://coliss.com/articles/build-websites/operation/work/hotkeyclash-for-mac-keyboard-shortcuts-clash.html) details this procedure.
How to Use and View the Shortcut List
After installation, click the menu bar icon or press Shift + Command + H to launch. Scan results appear in a list showing the origin of each shortcut (app name or config file).
Conflicting shortcuts are highlighted, and clicking details identifies the source app or setting. Conflicts can be temporarily hidden. The coliss.com article includes screenshots demonstrating usage.
Conflict Classification (Deterministic vs Potential) and Severity Display
HotkeyClash classifies conflicts as “deterministic” (global vs global, always conflicting) or “potential” (menu vs menu, only when the app is frontmost).
Sorted by severity, global duplicates should be resolved first by reassigning one shortcut. The classification follows the detailed explanation in the coliss.com source.
Summary: Why Recommended for BetterTouchTool Users
BetterTouchTool excels at advanced gestures and shortcut management but lacks built-in conflict detection. HotkeyClash complements it as a specialized tool.
It runs on pure Apple frameworks, is lightweight, and is open source under GPL v2.0. For anyone who relies heavily on macOS shortcuts, it reduces daily friction. Try it from the official site (https://hotkeyclash.com/).
Frequently Asked Questions (FAQ)
Table: Feature Comparison Summary
| Feature | Support |
|---|---|
| Accessibility API Scan | Supported |
| Karabiner/skhd Config Parsing | Supported |
| macOS System Shortcut Reading | Supported |
| Conflict Classification (Deterministic/Potential) | Supported |
| Severity-Based Sorting | Supported |
| No External Dependencies | Supported (Pure Apple Frameworks) |
| License | GPL v2.0 (Free, Commercial OK) |
Source: coliss.com article (https://coliss.com/articles/build-websites/operation/work/hotkeyclash-for-mac-keyboard-shortcuts-clash.html) and official information (as of June 2026).
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krona23
Over 20 years in the IT industry, serving as Division Head and CTO at multiple companies running large-scale web services in Japan. Experienced across Windows, iOS, Android, and web development. Currently focused on AI-native transformation. At DevGENT, sharing practical guides on AI code editors, automation tools, and LLMs in three languages.
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