Use diff when you need to verify what changed
Common high-intent jobs
- Review before/after SQL query changes
- Check whether cleaned HTML changed structure
- Compare config revisions before deployment
FAQ
No. All text comparison happens locally in your browser, so your content never leaves your machine. This is ideal for sensitive documents, code, or proprietary information.
You can compare any plain text, including code (JSON, SQL, HTML, etc.), configuration files, documentation, and content drafts. The diff checker highlights added, removed, and changed lines.
Yes, but very large files (10,000+ lines each) may slow down browser performance. For massive comparisons, consider splitting them into smaller chunks or using a desktop diff tool.