Online Diff Checker - Compare Text, JSON & CSV Files Instantly
100% Browser-Based
Your files never leave your device. Unlike other diff tools, we don’t upload your sensitive data to servers.
3 Comparison Modes
Supports text (line-by-line), JSON (key-value analysis), and CSV (tabular data) formats.
How to Compare Files:
- Paste original content in the left panel
- Paste modified version in the right panel
- Select comparison mode (Text/JSON/CSV)
- View additions, deletions, and changes
Use Cases
- Developers: Track code changes between versions
- Data Analysts: Validate CSV dataset modifications
- Writers: Compare document revisions
- SysAdmins: Debug JSON config files
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