How does the diff work?

It uses a line-by-line comparison algorithm (LCS) to find added, removed, and unchanged lines between the two texts.

Is there a text size limit?

No hard limit — it runs entirely in your browser with no server involved.

Yes! It works great for comparing code, JSON, config files, or any plain text.

Tools Text ToolsText Diff Checker

Compare two texts and highlight the differences

Original TextLines: 1

Modified TextLines: 1

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Step 1

Type or paste the text you want to transform in the input area

Step 2

Select the transformation or analysis you want to perform

Step 3

See the processed text appear instantly in the output section

Step 4

Click copy to grab the result and use it wherever you need

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