AppWrangler

io.github.IntarsOv1.4.1更新於 Oct 9, 2026

Per-app CPU, efficiency-core and memory control for Apple Silicon Macs, with suggestions and undo.

已驗證STDIO僅桌面Developer ToolsProductivity & Workflow

概覽

AI 產生的概覽

讓助手在 Apple 晶片 Mac 上檢視並調整各應用程式的 CPU、效率核心與記憶體設定，並提供建議與復原。

功能
AppWrangler 是針對 Apple 晶片 Mac 的 macOS 選單列工具，可依應用程式管理 CPU、效率核心與記憶體。透過 MCP，助手可以詢問是什麼拖慢了 Mac，並在使用者同意後套用修正：依應用程式限制 CPU、僅使用效率核心、設定記憶體上限、凍結或結束應用程式，以及查看建議與復原變更。它也提供類似命令列的操作，例如顯示某個應用程式、設定規則和讀取統計資料。
適用情境
當使用者使用 Apple 晶片 Mac，並希望由助手診斷效能或記憶體壓力、調整各應用程式限制，而不是自己在選單列應用程式中手動操作時，適合加入。
執行需求
Apple 晶片上的 macOS 13 或更新版本；需在本機安裝 AppWrangler 應用程式（例如透過 Homebrew 或發行版壓縮檔），並完成 MCP 整合設定，例如使用該應用程式的 mcp install 命令。以本機 stdio 程序執行；未宣告需要帳號、API 金鑰或網路存取。
安裝前請注意
此伺服器會改變系統行為：套用 CPU 與記憶體限制、把應用程式移到效率核心，並可凍結、結束或強制結束應用程式，可能中斷工作或導致未儲存的資料遺失。變更應由使用者確認，且可以復原。此應用程式尚未公證，首次啟動時 macOS 要求按右鍵打開。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 AppWrangler，將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Desktop only，透過 STDIO。 STDIO 服務會啟動本機處理程序，因此需要 SourceWeft 桌面主機。

其他 MCP 客戶端

參照 儲存庫 中的啟動說明。

README

[AppWrangler icon]

AppWrangler

Keep every app on your Mac in check — CPU, efficiency cores and memory, per app.
A free, open-source menu bar app for Apple Silicon Macs.

[macOS 13+] [Apple Silicon] [GPL-2.0]

[Buy Me a Coffee]

Helps the app you're using stay fast, even on an 8 GB Mac with lots of apps open.

  • 🪄 Works on its own. Auto mode keeps the app in front at full speed and moves everything in the background to the efficiency cores. No rules needed.
  • 🧊 Rescues low-memory Macs. When memory runs short, it can freeze the apps you haven't touched for a while, and each one wakes the moment you click it. It also tells you which app is eating your RAM and what to do about it.
  • 🎛 Puts you in charge when you want it. Per-app CPU limits, efficiency cores and memory limits, with conditions such as "only on battery". You can also ask Claude to tune your Mac for you.

Free and open source (GPL-2.0), for macOS 13+ on Apple Silicon. It uses well under 1% of one core and never connects to the network.

bash
brew tap intarso/appwrangler https://github.com/IntarsO/AppWranglerbrew install --cask appwrangler

Or download the zip from Releases. AppWrangler isn't notarized yet, so the first time, right-click it → Open.

[The AppWrangler panel: CPU and memory meters, Auto mode status, suggestions, and running apps with what Auto is doing to each]

What it does

🪄 Auto modeOn by default. The app you're using runs at full speed. Background apps move to efficiency cores, and only when your Mac is busy do they share the CPU fairly, so everything stays usable. Optionally, when memory runs out, it freezes apps you haven't used for a while, and they resume the moment you switch back.
🎛 CPU limitCap an app and all of its helper processes (Chrome tabs, Electron helpers, Safari web content…) at any share of the CPU. Optionally limit it only while it's in the background.
🍃 Efficiency cores onlyMove an app onto the Apple Silicon E-cores, with slower disk and network access. It stays usable while saving battery and heat.
🧠 Memory limitWhen an app's memory stays above your limit, get notified, or freeze, quit or force-quit it. (macOS doesn't let one app hard-cap another's memory, so AppWrangler watches and acts.)
🚨 Low-memory protectionWhen your Mac runs short of memory, automatically freeze or quit apps you've marked as expendable, and resume them afterwards. Free memory now does it on demand.
⏱ ConditionsMake any rule apply only on battery or on the charger, in Low Power Mode, when the Mac is hot, or during set hours and days.
🔥 Runaway alerts"Chrome Helper has used 150% CPU for 3 minutes" — an alert in the panel and a notification with Limit, E-cores and Ignore buttons.
❄️ Freeze, quit, force quitSuspend any app instantly and resume it later.
📊 ImpactHow much CPU time and energy it saved, how often your Mac ran short of memory and how much it swapped, and what AppWrangler itself cost to run.
💡 Suggestions"Brave uses more than your 8 GB of RAM — here's what to do." Concrete recommendations, each with the reason, the benefit and a one-click fix. appwrangler undo takes changes back.
🤖 AI assistants (MCP)Ask Claude or OpenAI Codex what's slowing your Mac down and have it fix it, with your OK. Set up with one command: appwrangler mcp install.
⌨️ Command line & linksappwrangler suggest, show Slack, set Slack efficiency_cores=on, stats, prefs… and appwrangler:// links for Shortcuts.
🖥 Desktop widgetCPU, memory, Auto mode, the busiest apps and suggestions on your desktop (macOS 14+), with Pause, Auto and Free memory buttons.
📖 Built-in helpThe full manual inside the app, searchable and offline, with a ? next to every setting.

[Medium desktop widget: CPU and memory rings, Auto status, the busiest apps, the top suggestion and buttons]   [The built-in Help window showing the User Manual's Auto mode chapter, with topics and search in the sidebar]

How it compares

AppWranglerApp TamerAppPoliceActivity Monitor
PriceFree$14.95 (15-day trial)FreeFree (built in)
Apple Silicon native✅✅❌ (2016, Intel-era)✅
Move apps to efficiency cores✅✅❌❌
Per-app CPU limit✅✅✅❌
Per-app memory limit (notify / freeze / quit)✅❌❌❌
Automatic background management✅ Auto mode✅❌❌
Freeze idle apps when memory runs low✅❌❌❌
AI assistants (MCP) / command line✅ / ✅❌ / AppleScript❌❌
Open source✅ GPL-2.0❌✅ GPL-2.0❌
Last updated20262024 (2.8.4); 3.0 in beta2016with macOS

App Tamer is a polished, long-standing commercial app, and if you already use it, it does its job well. AppWrangler is for people who want something free and open source with memory handling and AI control. Facts checked in October 2026 against each project's own pages; tell us if something has changed.

Get started

  1. Install with Homebrew (above), the zip from Releases, or build it with Apple's free Command Line Tools: ./build.sh --install --run.
  2. Click the lasso icon in the menu bar. Auto mode is already working; the Auto line shows what it's doing, and Suggestions point out anything worth changing.
  3. Want more control? Click an app and turn on Limit CPU, Efficiency cores only or Memory limit. It applies at once and every time the app runs.

👉 Read the full Getting Started guide.

Documentation

Built on AppPolice

AppWrangler is a fork of AppPolice by Maksym Stefanchuk (2013–2015), a menu bar app that let you throttle an app's CPU with a slider. That project inspired AppWrangler, and its source is where AppWrangler began.

The original no longer built on modern macOS and its limiter didn't work on Apple Silicon. AppWrangler is a ground-up rewrite (Swift + C) that keeps the idea and adds:

  • an Apple Silicon–correct real-time CPU limiter that covers helper processes;
  • efficiency-core mode;
  • memory limits and low-memory protection;
  • conditional rules;
  • runaway detection;
  • "what is this?" descriptions;
  • a CLI;
  • a test suite.

See NOTICE.md and the CHANGELOG for details. AppPolice 1.x limits and AppPolice 2.x rules are imported automatically.

Support the project

AppWrangler is free and always will be. If it saves your battery or your sanity, you can buy me a coffee ☕. Thank you!

Building and contributing

bash
xcode-select --install     # Command Line Tools — full Xcode is not required./build.sh                 # → build/AppWrangler.app./test.sh                  # unit + integration tests./Tests/e2e/run.sh         # end-to-end tests against the built app

Contributions are welcome — see CONTRIBUTING.md and our Code of Conduct. Please report security issues privately as described in SECURITY.md.

License

AppWrangler is free software, licensed under the GNU General Public License v2 (LICENSE), the same license as AppPolice. Original AppPolice code © 2013–2015 Maksym Stefanchuk; AppWrangler © 2026 AppWrangler contributors.

來源：README.md，提交 c582048

工具

0
工具後設資料尚未被收錄。

版本歷史

1
  1. v1.4.1最新Oct 9, 2026