Google AdSense — In-Content 728×90
Frequently Asked Questions
What does the diff checker show? ▼
It compares the two texts line by line. Green lines with a + are additions (in Modified but not in Original). Red lines with - are deletions (in Original but not in Modified). Grey lines are unchanged.
Can I use this to compare code? ▼
Yes — it works with any plain text including source code, HTML, JSON, SQL, or any programming language. The comparison is purely text-based and works identically for code and prose.
Is my text sent to any server? ▼
Never. All comparison happens locally in your browser using JavaScript. Your text — including any sensitive code or documents — never leaves your device.