About DiffMaster
Professional code and text comparison tool designed for developers, QA engineers, technical writers, and students.
Powerful Features
Everything you need for efficient code comparison
Multiple View Modes
Side-by-side, unified, inline, and horizontal split views for any workflow
Syntax Highlighting
Support for 12+ languages including JavaScript, TypeScript, Python, Java, and more
100% Private
All processing happens in your browser. No server uploads, ever.
File Upload
Drag & drop files or click to upload. Supports text, code, JSON, XML, and CSV
Share & Export
Export to Text, HTML, Markdown, or Git-style patches. Share via URL
History
All comparisons saved locally. Search, filter, and restore anytime
Keyboard Shortcuts
Power-user shortcuts for maximum productivity (Ctrl on Windows/Linux, Cmd on Mac)
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. Built with Nuxt.js, Vue 3, Tailwind CSS, and industry-standard diff algorithms. For other developer utilities, check out PixelProbe to inspect photo metadata for compliance.
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RegexKit
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DiffText Pro
Professional text comparison tool for detailed document analysis.
Preparing walkthrough decks? Pair DiffMaster snapshots with PresentForge to turn before/after diffs into client-ready slides, or surface trendlines inside ChartCraft for instant dashboards.
Need supporting context? Clean raw logs through DataKit before diffing and sketch follow-up flows in FlowBuilder to brief teammates on remediation steps.
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.