Oneliner

A modern, professional web tool for converting multi-line commands and text into clean, single-line format. Perfect for developers working with SQL queries, curl commands, shell scripts, and any multi-line text that needs to be converted to one-liners.

🔗 Try it live: https://catsmice.github.io/oneliner/

📸 Screenshots

Single Command Mode (Light Theme)

Convert a single multi-line command to a clean one-liner with instant preview

Multiple Commands Mode (Dark Theme)

Input multiple commands separated by numbers or blank lines

Each command gets its own one-liner output with individual copy buttons

🚀 Features

Dual Mode Support

• Single Command Mode: Convert one multi-line text block to a single line
• Multiple Commands Mode: Process multiple commands at once with intelligent splitting

Intelligent Command Detection

• Automatically detects numbered commands (1. 2. 3. ...)
• Splits by double line breaks
• Recognizes common command prefixes (curl, psql, git, docker, etc.)

Conversion Options

• ✅ Preserve Spaces: Keep single spaces between joined lines
• ✅ Trim Whitespace: Remove leading/trailing spaces from each line
• ⚙️ Remove Comments: Strip SQL-style comments (-- and /* */)
• ⚙️ Compact Spaces: Replace multiple spaces with single space

Professional UI

• 🌙 Dark/Light Theme: Toggle between themes with persistent preference
• 📊 Real-time Statistics: Track lines, words, size reduction, and command count
• 📋 Smart Copy Functions: Copy individual commands or all at once
• ⌨️ Keyboard Shortcuts: Ctrl+Enter to copy, Ctrl+Shift+Delete to clear
• 📱 Responsive Design: Works perfectly on desktop and mobile

Developer Experience

• Real-time conversion as you type
• Visual feedback with animations
• Toast notifications for actions
• Processing indicators
• Monospace font for code readability

🎯 Use Cases

SQL Queries

-- Input:
SELECT * 
FROM users
WHERE age > 18
  AND status = 'active'

-- Output:
SELECT * FROM users WHERE age > 18 AND status = 'active'

Curl Commands

# Input:
curl -X POST \
  http://localhost:3000/api/users \
  -H "Content-Type: application/json" \
  -d '{"name": "John", "age": 30}'

# Output:
curl -X POST http://localhost:3000/api/users -H "Content-Type: application/json" -d '{"name": "John", "age": 30}'

Multiple Commands

Perfect for processing lists of commands like:

1. Database repair commands
2. API testing sequences
3. Deployment scripts
4. Monitoring checks

🛠️ Installation & Usage

Option 1: Use Online (Recommended)

Visit the live demo: https://catsmice.github.io/oneliner

Option 2: Run Locally

# Clone the repository
git clone https://github.com/catsmice/oneliner.git

# Navigate to the project directory
cd oneliner

# Open index.html in your browser
open index.html  # macOS
start index.html # Windows
xdg-open index.html # Linux

That's it! No build process or dependencies required.

🎮 How to Use

Single Command Mode

1. Paste your multi-line text in the input area
2. See the real-time conversion in the output area
3. Adjust conversion options as needed
4. Click "Copy to Clipboard" or press Ctrl+Enter

Multiple Commands Mode

1. Click "Multiple Commands" toggle
2. Paste multiple commands (numbered or separated by blank lines)
3. Each command gets its own one-liner output
4. Copy individual commands or use "Copy All Commands"

Keyboard Shortcuts

• Ctrl/Cmd + Enter: Copy result(s) to clipboard
• Ctrl/Cmd + Shift + Delete: Clear all content

🧪 Examples

Example 1: Database Commands

Input:
1. First, repair the GeneratedPost back-references:

curl -X POST http://localhost:3000/api/debug/repair-backlinks | jq '{success: 
.success, repaired: .data.summary.backLinksRepaired, processed: 
.data.summary.socialPostsProcessed}'

2. Verify the repair worked with psql:

psql "$DATABASE_URL" -c "SELECT COUNT(*) as empty_postid_count FROM 
\"GeneratedPost\" WHERE \"postId\" IS NULL OR \"postId\" = '';"

Output:
Command 1: curl -X POST http://localhost:3000/api/debug/repair-backlinks | jq '{success: .success, repaired: .data.summary.backLinksRepaired, processed: .data.summary.socialPostsProcessed}'

Command 2: psql "$DATABASE_URL" -c "SELECT COUNT(*) as empty_postid_count FROM \"GeneratedPost\" WHERE \"postId\" IS NULL OR \"postId\" = '';"

🏗️ Technical Details

• Framework: Pure HTML5, CSS3, and Vanilla JavaScript
• No Dependencies: Works without any external libraries
• File Size: < 50KB total
• Browser Support: All modern browsers (Chrome, Firefox, Safari, Edge)
• Mobile Support: Fully responsive design

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

Development Setup

1. Fork the repository
2. Clone your fork: git clone https://github.com/yourusername/oneliner.git
3. Create a feature branch: git checkout -b feature-name
4. Make your changes and test them
5. Commit your changes: git commit -m "Add some feature"
6. Push to the branch: git push origin feature-name
7. Submit a pull request

Reporting Issues

• Use GitHub Issues for bug reports and feature requests
• Provide clear steps to reproduce bugs
• Include browser version and operating system

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

• Inspired by the need for quick command formatting in development workflows
• Built with modern web standards and accessibility in mind
• Design inspired by contemporary developer tools

📊 Project Stats

---

Made with ❤️ for developers who value clean, efficient code