🔧 Smart Regex Builder

Smart Regex Builder is a developer-focused Chrome extension that helps you generate, test, and manage regular expressions for real-world form validation and security use cases.

It is designed for everyday developer workflows and works completely offline, with no external dependencies.

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✨ Features

🧩 Generate Regex

• Generate regex for common form fields:
  • Email
  • Phone (India / USA / UK)
  • Username
  • Name
  • Numbers
  • Alphanumeric
• Prevent unsafe characters to reduce SQL injection risks
• Custom start patterns and length control
• Copy regex to clipboard with one click

🧪 Test Regex

• Paste any regex
• Test against custom input
• Manual test trigger
• Highlight matched content

💾 Saved Templates

• Save regex templates with a custom name
• Edit saved regex back into the generator
• Delete unused regex patterns
• All data stored locally in browser storage

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🔐 Security Notes

• This extension helps with input validation only
• Regex alone does not prevent SQL injection
• Always use:
  • Parameterized queries
  • ORM / prepared statements on the backend

This tool complements backend security, it does not replace it.

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🖥 Installation (Local / Office Use)

1. Clone or download this repository

2. Open Chrome and navigate to:

3. Enable Developer Mode

4. Click Load unpacked

5. Select the project folder

The extension is now available in your browser toolbar.

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🔐 Privacy

• No data is sent to any server
• No tracking or analytics
• All regex templates are stored locally using chrome.storage
• Works fully offline

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Screenshots

• Regex Generator

• Regex Test

• Saved Regex

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🚀 Future Enhancements

• Import / export regex templates
• Regex flags support (i, g, m)
• Regex explanation in plain English
• Sidebar mode instead of popup
• Pro features for advanced validation

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👤 Author

Midhun V S
GitHub: https://github.com/vsmidhun21

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Built for developers who work with forms, validation, and security every day.