Text Diff Checker – Free Online Tool to Compare Two Texts
Compare two texts instantly and find the differences. Great for revisions, content checks, copied drafts, proofreading, and quick line-by-line comparison.
Lines only in Text A
Lines only in Text B
About this free Text Diff Checker
This free online Text Diff Checker helps you compare two text versions instantly and identify what changed. It is useful when reviewing revisions, comparing article drafts, checking copied content, or spotting differences between two text blocks.
Paste one version into Text A and another into Text B to see matching status, unique lines, and a quick summary of the differences.
What this Text Diff Checker can do
- Compare two texts: Check whether two versions are identical or different.
- Find unique lines: See which lines exist only in Text A or only in Text B.
- Summarize differences: View matching state and line difference counts instantly.
- Useful for: revision checks, draft comparison, proofreading, and content QA.
When to use a Text Diff Checker
Use a Text Diff Checker when reviewing revised copy, comparing notes, checking edits, validating content changes, or spotting differences between saved and updated drafts.
How to use
Paste your first text into Text A and the second version into Text B, then click Compare Texts to see the differences instantly.
Useful for
Great for article revisions, proofreading, comparing drafts, checking copied text, and spotting changed lines quickly.
Fast & private
Your text stays in your browser. No uploads, no signup, and no backend required.
Text Diff Checker FAQ
How do I compare two texts online?
Paste one text into Text A and the other into Text B, then click Compare Texts. The tool shows unique lines and identifies whether the texts match.
What does a Text Diff Checker do?
A Text Diff Checker compares two blocks of text and shows differences between them, including lines found only in one version.
When should I use a Text Diff Checker?
Use a Text Diff Checker when reviewing revisions, comparing drafts, checking copied content, or spotting changed lines quickly.
Is this Text Diff Checker free?
Yes. This Text Diff Checker is completely free and does not require signup.