🔍 Text Diff Checker
Compare two texts side by side and instantly see added, removed, and changed lines highlighted.
Online Text Diff Checker
Paste any two versions of text to see exactly what changed between them. Lines are compared using a longest common subsequence algorithm for accurate results.
Frequently Asked Questions
How does the text diff work?
The tool compares two texts line by line and highlights lines that have been added, removed, or modified. It uses a longest common subsequence algorithm to find the minimal set of changes.
Is my text stored or sent to a server?
No. All text comparison happens entirely in your browser. No data is sent to any server.
Can I compare large texts?
Yes, the diff algorithm handles large texts efficiently. For very large documents with thousands of lines, results may take a moment to compute.