Maccy Hands-On: A Lightweight, Keyboard-First Open-Source Clipboard Manager for macOS

Introduction

When I write code or organize information on macOS, the problem I run into most often is needing to copy and paste repeatedly between different windows. Sometimes I just copied a chunk of code, then need to copy an API URL, and when I later need that same code again, I have to switch windows and copy it one more time. This kind of tedious switching really interrupts the flow of work.

I have used quite a few clipboard managers before. Some had plenty of features, but the interface was too complicated, or they used a fair amount of memory while running in the background. Later, I switched to Maccy. Its design fits exactly what I expect from an efficiency tool: it is very lightweight, fully supports keyboard operation, and is open-source and free.

After using it for a while, I put together its workflow and installation methods. If you also want to make copy and paste on macOS more efficient, you can use my notes as a reference.

I originally thought clipboard tools like this were mostly the same, but after using it for a few days, I found several details that made me decide to keep Maccy installed:

Native Lightweight Experience

It is written in Swift, so it is fast, and its appearance follows the native macOS menu bar style. There is no flashy UI, and it does not take up screen space. It uses very little memory while running in the background, which matters to me because my development environment already has a pile of containers and IDEs open.

Keyboard-First Design

This is my favorite part of its design. Every operation can be done from the keyboard. After pressing the shortcut to open it, there is no need to click into a search box with the mouse. You can just start typing to search. After selecting the item you want, press Enter to copy it, or use Option to paste it directly. Your hands never need to leave the keyboard.

Privacy and Security

The clipboard often contains sensitive data such as passwords, tokens, or private keys. Maccy itself is an open-source project, so the code is fully public. By default, it also filters and ignores copied content from password managers such as 1Password and KeeWeb, preventing sensitive data from being kept in clipboard history.

Core Workflow and Shortcuts

The workflow I use most often looks like this:

1. Quick Activation and Search

Press the default Shift + Command + C shortcut, and Maccy's menu pops up directly beside the mouse cursor. From there, you can start typing immediately, and the menu filters the clipboard history in real time, leaving only matching items. Whether it is plain text, a web link, or an image, it supports direct search and preview.

2. Select and Paste

After filtering down to the item you want, there are several ways to use it:

Copy to clipboard only: Press Enter directly, or double-click the item.
Paste directly: Hold Option and press Enter, or press Option plus the number shortcut beside the item, such as Option + 1. It will insert that item into your current input field.
Paste without formatting: If the copied text includes rich text formatting such as colors or font sizes, hold Option + Shift and then press Enter. It will paste as plain text.

3. Pin and Delete

For frequently used text, such as common SSH commands or template phrases, you can select it in the menu and press Option + P. This pins the item to the top of the menu, so it will not be pushed out by newer clipboard entries.

If you copied temporary sensitive data, such as an SMS verification code, you can select that item in the menu and press Option + Delete to manually remove it from history.

Installation Methods

Maccy provides several ways to get the app. You can choose based on your needs:

Method 1: Install via Homebrew Recommended

If you are used to the command line, open Terminal and enter the following command:

bash

brew install maccy

This is the installation method I recommend most. It is completely free, and future upgrades are also convenient.

Method 2: Download from the Official Website or GitHub

You can download the .dmg installer from the official website, or go directly to the GitHub releases page to download the latest version.

If you want to support the author, you can also buy the paid version from the Mac App Store. Its features are exactly the same as the open-source version.

Rough Edges and Tuning Tips

When I first installed and used it, I ran into two small things that needed manual adjustment. Sharing them here for reference:

Automatic Paste Not Working?

Right after installation, I noticed that after selecting an item, it only copied the item to the clipboard and did not automatically paste it for me. Later, I went into Preferences by pressing Command + , and made sure "Paste automatically" was checked.

Then I went to macOS 「系統設定」->「隱私權與安全性」->「輔助使用」 and enabled Maccy. Because automatic paste needs to simulate keyboard input, it requires the system's accessibility permission to work properly.

Adjust the Clipboard Check Interval

By default, Maccy checks the system clipboard every 500 milliseconds, or 0.5 seconds, to see whether there is new content. For developers who type very fast or copy things frequently, sometimes you copy something and immediately press the shortcut, only to find that Maccy has not recorded it yet.

If you want it to respond more immediately, you can open Terminal and enter this command to shorten the check interval to 100 milliseconds:

bash

defaults write org.p0deje.Maccy clipboardCheckInterval 0.1

After changing it, restart Maccy, and the response speed will noticeably improve.