AI Input Assist
Claude Enter Key Control
Prevent accidental Enter-key sending in Claude.
Free Chrome extension Edge add-on AI input assistant No data collection No external communication
Recommended for
✍️
People who write long prompts in Claude
Designed for users who want to write long prompts and messages in Claude without accidental sends.
📝
Users who organize ideas and drafts
Useful for structuring outlines, drafts, and longer conversations in Claude.
🛡️
Users who want to prevent accidental sends
Helps reduce the stress of sending a message when you only meant to add a line break.
⌨️
Mac users who want better send keys
Supports send key options such as Cmd+Enter for Mac users.
Features
・Use Enter to insert a new line
・Send with Shift+Enter, Ctrl+Enter, or Cmd+Enter
・Supports the standard Claude chat input
・Simple, lightweight settings
Benefits
・Avoid retyping after accidental sends
・Draft complex prompts with better control
・Use a text-editor-like input flow
Description
Claude Enter Key Control is a Chrome / Edge extension that helps prevent accidental Enter-key sends in Claude.
When writing long prompts, structured requests, outlines, or longer messages in Claude, it is easy to send a message by mistake when you only meant to add a new line. This extension adjusts the Enter key behavior so you can write more calmly, like in a regular text editor.
■ Use Enter for line breaks
Use the Enter key to insert line breaks, making it easier to write longer questions, notes, and prompts.
■ Send with Shift / Ctrl / Cmd + Enter
Send messages with Shift+Enter, Ctrl+Enter, or Cmd+Enter. This clearly separates line breaks from sending and helps reduce accidental submissions while writing longer text.
■ Supports Mac keyboards
On Mac, you can send with Cmd+Enter, so the extension feels natural to use with Mac keyboards.
■ Designed for Claude
This extension is designed for use with Claude. It does not work with services other than Claude.
■ Privacy and local processing
Claude Enter Key Control does not send your input or page content to external servers.
Key behavior changes and settings are processed locally in your browser.
Privacy and security
The extension does not collect input data or send it to external servers.
It runs on supported Claude pages.
FAQ
What is Claude Enter Key Control?
Claude Enter Key Control is a browser extension for Chrome and Microsoft Edge that helps prevent accidental Enter-key sends in Claude input fields. It lets you use Enter for line breaks and send with the key combination you choose.
How does the Enter key behavior change?
Depending on your settings, Enter can insert a line break instead of sending the message. You can use Shift+Enter, Ctrl+Enter, or Cmd+Enter to send.
Can it prevent accidental Enter-key sends on Mac?
Yes. You can use it on Mac with Google Chrome or Microsoft Edge. When using Claude on Mac, it helps prevent accidental Enter-key sends and keeps line breaks separate from sending.
Do I need detailed setup after installation?
In most cases, it is designed to work right after installation. It uses a convenient initial state based on your OS and display language, and you can change the send key or behavior mode as needed.
Can I use it with services other than Claude?
No. This extension is built for Claude and does not work with services other than Claude.
What should I do if changed settings are not applied?
Reload the target page after changing settings. Tabs that are already open may not immediately pick up settings right after installation or an update.
Is this extension safe?
This extension is designed not to collect your input or conversation content and not to send it to external servers. Settings are saved in your browser, and the extension runs with the minimum required permissions. The source code is published on GitHub for transparency, so you can review how it works. Please see the privacy policy for details.
Is Claude Enter Key Control free to use?
Yes. Claude Enter Key Control is free to use.
How do I uninstall it?
You can remove it from your browser's extensions management page. In Chrome, open chrome://extensions. In Edge, open edge://extensions.
Install now
Use it for free. Add it from the Chrome Web Store or Microsoft Edge Add-ons.
