Claude Enter Key Control (by marusin)

Tracking since Apr 1, 2026.

Changelog

• Jun 10, 2026
  description

  Claude is a browser extension that helps prevent accidental sends when entering long prompts or messages in Claude.
  It is designed specifically for Claude and lets you choose the send key setting that works best for you.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Makes it easier to write longer prompts and messages
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only on Claude
  
  ■ How to use
  - After installation, click the extension icon in the toolbar to enable or disable the extension and choose your preferred send key.
  - If Claude is already open when you install the extension, reload the page or click the extension icon once to open the popup.
  
  ■ Release Notes
  Version 1.1.5
  - Added a description
  - Improved activation on existing tabs
  
  Developed by marusin

  Have you ever felt frustrated with Claude when you just wanted to start a new line, but accidentally sent the message instead?
  
  "Claude Enter Key Control" is a Chrome extension that allows you to "Enter to create a new line," just like your favorite text editor. It completely prevents accidental submissions, providing stress-free support for crafting long prompts and organizing your thoughts!
  
  ⚠️ [Important] Notice for Installation
  If you already have Claude pages open, please reload (refresh) the page once to enable the extension's features.
  
  💡 Key Features
  - Enter to create a new line (Feels just like standard text input!)
  - Customizable send shortcuts (Choose from Shift+Enter, Ctrl+Enter, Cmd+Enter for Mac, etc.)
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl / Mac Cmd)
  - Fully compatible with the standard Claude chat screen input
  - Multilingual UI support (English, Japanese, Chinese, Korean)
  
  ✨ Benefits & Ease of Use
  - Configure your preferred key settings in just 2 clicks
  - Say goodbye to the stress of retyping after an accidental submission
  - Crafting complex and detailed prompts becomes incredibly smooth
  
  🔒 Simple, Fast, & Safe
  - Lightweight with highly responsive, smooth performance
  - 100% Private: No input data is collected or transmitted externally
  - Works exclusively on Claude pages
  
  ⚙️ How to Use
  1. After installation, reload (refresh) any Claude tabs you already have open.
  2. Click the extension icon in the Chrome toolbar.
  3. Simply toggle the feature on/off and select your preferred send key!
  
  💖 A Request from the Developer
  If this extension helps you even a little, please consider leaving a rating or review on the Web Store! (Ratings can be done anonymously)
  Your support is a huge motivation for future updates!
  
  📋 Release Notes
  Version 1.2.0
  - Added support for sending with the Command (Cmd) key on Mac!
  
  Version 1.1.5
  - Added description text.
  - Improved extension reflection on existing tabs.
  
  Developer: marusin

• May 4, 2026
  description

  Claude helps prevent accidental sends when you meant to insert a line break.
  It is a browser extension that makes chatting with AI more comfortable.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Lets you write long prompts and messages with more confidence
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only on Claude
  
  ■ How to use
  - After installation, you can enable or disable the extension and choose the send key from the extension icon in the toolbar.
  
  ■ Release Notes
  Version 1.1.4
  - Improved the UI
  - Updated the icon
  - Updated the store images
  
  ■ Other
  - Available for ChatGPT, Claude, and Gemini.
  
  Developed by marusin

  Claude is a browser extension that helps prevent accidental sends when entering long prompts or messages in Claude.
  It is designed specifically for Claude and lets you choose the send key setting that works best for you.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Makes it easier to write longer prompts and messages
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only on Claude
  
  ■ How to use
  - After installation, click the extension icon in the toolbar to enable or disable the extension and choose your preferred send key.
  - If Claude is already open when you install the extension, reload the page or click the extension icon once to open the popup.
  
  ■ Release Notes
  Version 1.1.5
  - Added a description
  - Improved activation on existing tabs
  
  Developed by marusin

• May 4, 2026
  short_description

  Control Enter key behavior in Claude. Press Enter for newline, Shift+Enter/Ctrl+Enter to send.

  Prevent accidental sends when you meant to insert a line break in Claude.

• May 4, 2026
  permissions

  storage

  storage, activeTab, scripting

• Apr 17, 2026
  description

  Control how the Enter key works in Claude.
  Prevent accidental sends and customize your send key for better typing control.
  
  Customize Enter key behavior to prevent accidental message sending and improve typing control.
  
  ■ Features
  - Press Enter to insert a new line
  - Use Shift+Enter or Ctrl+Enter to send
  - Multiple send modes available (Shift, Ctrl, Both, Shift+Ctrl)
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Avoid accidental message sending
  - Write longer prompts comfortably
  - Improve typing control and accuracy
  
  ■ Simple & Safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only on Claude
  
  ■ What's New (v1.1.3)
  - UI improvements
  
  Developed by marusin

  Claude helps prevent accidental sends when you meant to insert a line break.
  It is a browser extension that makes chatting with AI more comfortable.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Lets you write long prompts and messages with more confidence
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only on Claude
  
  ■ How to use
  - After installation, you can enable or disable the extension and choose the send key from the extension icon in the toolbar.
  
  ■ Release Notes
  Version 1.1.4
  - Improved the UI
  - Updated the icon
  - Updated the store images
  
  ■ Other
  - Available for ChatGPT, Claude, and Gemini.
  
  Developed by marusin

Permissions & access

Permissions

storageactiveTabscripting

Host access

None declared

Screenshots