AppWrangler

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

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

已验证STDIO仅桌面Developer ToolsProductivity & Workflow

概览

AI 生成的概览

让助手在 Apple 芯片 Mac 上查看并调整各应用的 CPU、能效核心和内存设置，并提供建议与撤销。

功能
AppWrangler 是面向 Apple 芯片 Mac 的 macOS 菜单栏工具，可按应用管理 CPU、能效核心和内存。通过 MCP，助手可以询问是什么拖慢了 Mac，并在用户同意后应用修复：按应用限制 CPU、仅使用能效核心、设置内存上限、冻结或退出应用，以及查看建议和撤销更改。它还提供类似命令行的操作，例如查看某个应用、设置规则和读取统计信息。
适用场景
当用户使用 Apple 芯片 Mac，并希望由助手诊断性能或内存压力、调整各应用限制，而不是自己在菜单栏应用中手动操作时，适合添加。
运行要求
Apple 芯片上的 macOS 13 或更高版本；需在本机安装 AppWrangler 应用（例如通过 Homebrew 或发布压缩包），并完成 MCP 集成设置，例如使用该应用的 mcp install 命令。以本地 stdio 进程运行；未声明需要账户、API 密钥或网络访问。
安装前请注意
该服务器会改变系统行为：应用 CPU 和内存限制、把应用移到能效核心，并可冻结、退出或强制退出应用，可能中断工作或导致未保存的数据丢失。更改应由用户确认，且可以撤销。该应用尚未公证，首次启动时 macOS 要求右键打开。

安装

在 SourceWeft 中

  1. 打开 控制台中的 AppWrangler，将其添加到工作区。
  2. 为需要使用其工具的对话启用该服务。

Desktop only，通过 STDIO。 STDIO 服务会启动本地进程，因此需要 SourceWeft 桌面宿主。

其他 MCP 客户端

参照 仓库 中的启动说明。

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.

来源：README.md，提交 c582048

工具

0
工具元数据尚未被收录。

版本历史

1
  1. v1.4.1最新Oct 9, 2026