Free Text Compare

Are these two drafts actually different? Paste both texts and this free comparator shows side-by-side character, word and line stats plus a similarity percentage — with a plain-English verdict from identical to quite different.

Private by design. This tool runs 100% in your browser — your text is never uploaded to any server.

How to Use the Text Compare

  1. Paste the first text into the left box.
  2. Paste the second text into the right box.
  3. Click “Compare texts”.
  4. Read the stats, similarity score and verdict.

Features

Side-by-side table of characters, words and lines for both texts with exact differences, plus a bigram-Jaccard similarity percentage with a progress bar and a verdict (identical, very similar, somewhat similar, quite different). Toggle case-insensitive and whitespace-normalized comparison.

Benefits & Use Cases

Editors check whether a revision actually changed anything. Students compare their paraphrase against a source. Developers diff config versions quickly. Plagiarism spot-checks get a fast first signal before deeper tools.

Tips

Enable “ignore extra whitespace” when comparing reformatted text — otherwise spacing changes tank the score. A 100% match means identical under your chosen options, not necessarily byte-identical. For line-by-line detail, follow up with the Text Diff Checker.

Frequently Asked Questions

Is text compare free?

Yes, free and unlimited.

How is similarity calculated?

With a word-bigram Jaccard index: the overlap of two-character sequences between the texts, as a percentage.

What does 100% mean?

The texts are identical under your current options (case/whitespace settings may hide trivial differences).

Can it show exactly what changed?

For line-level detail use the Text Diff Checker — this tool gives stats and an overall score.

Are my texts uploaded?

No, comparison runs locally in your browser.

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