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Compare Data and CSV Files

Spot differences between two versions of exported data, CSVs, logs, or configuration.

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Context:
Original (A)
Modified (B)
+3 addedβˆ’2 removed2 unchanged
Diff
+The quick brown fox leaps over the lazy dog.
βˆ’The quick brown fox jumps over the lazy dog.
Pack my box with five dozen liquor jugs.
+How amazingly quick daft zebras jump!
βˆ’How vexingly quick daft zebras jump!
The five boxing wizards jump quickly.
+Now is the time for all good men.

Data tips

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Paste two versions of a CSV or JSON export to find which rows or fields were added, changed, or removed between exports.

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Server logs: compare two log snapshots to identify new error lines, missing entries, or changed counts.

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Config files: diff two versions of your nginx.conf, docker-compose.yml, or .env to see exactly what changed between deployments.

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Use "Ignore whitespace" to ignore formatting differences (extra spaces, tabs) and focus purely on data value changes.

How It Works

1
Enter
Enter your data into the tool above. Everything stays local to your browser.
2
Process
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Download
Get your result instantly. Nothing is stored after you leave the page β€” complete privacy.

Why use ours?

βœ“Completely free β€” no hidden costs, ever
βœ“No account, email, or login required
βœ“Files never leave your device
βœ“No file size limits whatsoever
βœ“No watermarks on any output

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Frequently Asked Questions