How do I compare two texts?

Paste the first text in the Original panel and the second in the Modified panel. Differences are highlighted inline — green for added words, red for removed words.

How is this different from the Diff Checker tool?

Text Diff compares at the word level, showing inline differences within lines. The Diff Checker tool compares at the line level, which is better suited for code and configuration files.

What algorithm is used?

The tool uses the diffWords function from the "diff" library, which implements a token-based diff algorithm that ignores whitespace changes between words.

Yes — Text Diff works on any plain text. For large code files with many line-level changes, the Diff Checker tool may give clearer results as it shows full lines.

Is my text sent to a server?

No — the comparison runs entirely in your browser. Your text is never transmitted anywhere.

Text Diff

Compare two pieces of text and see exactly what changed. Differences are highlighted word-by-word inline — green for additions, red for deletions.

Your files never leave your device

Original

Modified

How to Text Diff

Paste the original text in the left panel.
Paste the modified text in the right panel.
The diff output highlights additions in green and deletions in red at the word level.
The summary shows counts of added and removed words.

Why Use This Tool?

Spotting what changed between two versions of a document, email, or paragraph is much faster with a visual word-level diff than reading both texts manually.

Text Diff

How to Text Diff

Why Use This Tool?

Frequently Asked Questions