File Comparator is a lightweight tool that helps you visually and textually compare two files of the same type—CSV, JSON, or XML.
🔍 Key Features:
Supports CSV, JSON, and XML formats
Git-style diff view: highlights added, removed, and unchanged content
Word-level difference highlighting
Text-based diff mode for plain output
Download result as .txt
Sanitized HTML rendering for secure display
🎯 Ideal for developers, testers, analysts, or anyone working with data files who needs a quick and easy way to spot changes.
🔒 Security
Uses DOMPurify to sanitize dynamic HTML for secure rendering
🧩 How to Use:
Click the extension icon.
Upload two files of the same format.
Select the file type.
Choose Git-style diff or plain diff.
Click “Compare” to view results.
(Optional) Download the result as a .txt file.
Browser Compatibility
✔️ Fully compatible with Firefox
🧩 Manifest v3 extension
