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DiffMaster

Professional Code Comparison

100% Private

About DiffMaster

DiffMaster is a professional code and text comparison tool designed for developers, QA engineers, technical writers, and students.

Features

Side-by-side and unified diff views
Syntax highlighting for 12+ languages
Line-by-line and word-by-word comparison
Ignore whitespace and case options
File upload support
Export to text or HTML
Shareable URLs
Comparison history (stored locally)
Keyboard shortcuts for productivity
100% privacy-first - No server uploads, all processing happens in your browser

Keyboard Shortcuts

Use Ctrl (Windows/Linux) or Cmd (Mac)

Toggle view mode (side-by-side ↔ unified)Ctrl/Cmd + D
Navigate to next changeCtrl/Cmd + ]
Navigate to previous changeCtrl/Cmd + [
Refresh comparisonCtrl/Cmd + Enter

Why DiffMaster?

We built DiffMaster because existing diff tools either lack modern features like syntax highlighting or compromise on privacy by uploading your code to servers. DiffMaster does everything in your browser - fast, private, and professional.

Technology

Built with Nuxt.js, Vue 3, Tailwind CSS, and industry-standard diff algorithms. All processing happens client-side using modern web technologies.

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Disclaimer

DiffMaster is provided "as-is" without any warranties, express or implied. While we strive for accuracy, we make no guarantees about the correctness of diff results.

User Responsibility: Always verify diff results, especially for critical code changes. Do not rely solely on this tool for production deployments or mission-critical comparisons.

No Liability: We are not responsible for any damages, data loss, or issues arising from the use of this tool. Use at your own risk.