What does the diff tool compare?

It compares two texts line-by-line, showing added, removed, and unchanged lines.

Is comparison case-sensitive?

Yes by default. Toggle case-insensitive mode for broader matching.

Yes, the diff checker works for any text including code, prose, or data.

No hard limit, but very large texts may take a moment to compare.

Yes, there is an option to ignore leading/trailing whitespace.

side by side

Compare two texts and highlight differences side-by-side. Find added, removed, and changed lines.

Original text

Modified text

Paste the original text in the left panel.

Paste the modified text in the right panel.

Additions are highlighted green, deletions red.

Count words, characters, sentences, paragraphs, and estimate reading time in real-time as you type.

Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, and more.

Remove duplicate lines from text instantly. Keep unique lines, sort, and clean up lists easily.