Terminal Code Preview

A simple web-based tool to preview how code and terminal commands look in a terminal environment, with the ability to take screenshots for documentation.

Features

Live Terminal Preview - Type or paste any code/commands and see them rendered in real-time in a terminal-style preview

Screenshot Capability - Capture the terminal preview with curved edges as a PNG image, perfect for documentation and presentations

Multiple Terminal Types - Support for different terminal environments:

• Bash
• Command Prompt (CMD)
• PowerShell
• Zsh

Mac-Style Design - Clean, modern interface inspired by ChatGPT and DeepSeek with authentic macOS terminal styling including red, yellow, and green window control dots

Responsive Layout - Works seamlessly on desktop and tablet devices

Getting Started

Usage

1. Open the Application

   • Simply open terminal-preview.html in any modern web browser
   • No server or installation required

2. Input Your Code

   • Paste your terminal commands or code in the left input area
   • Content updates in real-time

3. Select Terminal Type

   • Choose from the dropdown menu: Bash, CMD, PowerShell, or Zsh
   • The preview updates automatically with the appropriate prompt style

4. Take a Screenshot

   • Click the Take Screenshot button
   • The terminal preview is downloaded as a PNG image with preserved rounded corners

Example Use Cases

• Creating technical documentation
• Teaching and tutorials
• Writing blog posts or articles
• Presentations and reports
• Network configuration backups (like Cisco CLI output)

Features in Detail

Terminal Types

Each terminal type displays with its characteristic prompt style:

• Bash: user@machine:~$
• CMD: C:\Users\User>
• PowerShell: PS C:\Users\User>
• Zsh: user@machine ~

Screenshot Functionality

• Captures only the terminal box with curved corners
• No surrounding UI elements included
• High-quality 2x scale rendering
• Automatically downloads as terminal-[timestamp].png

Requirements

• Modern web browser (Chrome, Firefox, Safari, Edge)
• Internet connection (for html2canvas library)

Technologies Used

• HTML5 - Structure
• CSS3 - Styling and layout
• JavaScript - Interactivity and screenshot functionality
• html2canvas - Screenshot library via CDN

Contributing

Contributions are welcome! Feel free to submit issues or pull requests to improve the tool.

Support

If you encounter any issues or have suggestions for improvements, please open an issue on the GitHub repository.

© 2026 Ahndre Walters