Text Diff Checker
Paste two texts to highlight what changed — added, removed, or modified.
Diff Output
Frequently Asked Questions
What is a text diff?▼
A 'diff' (short for difference) is a comparison between two versions of text that highlights what was added, removed, or changed. It's the same concept used in version control systems like Git to show changes between file versions. This tool uses a word-level or line-level diff algorithm to highlight exactly what changed between your two texts.
When is a diff checker useful?▼
Common uses: (1) Comparing two drafts of a document to see what was changed. (2) Checking if two pieces of text are identical. (3) Finding plagiarism or paraphrasing between texts. (4) Reviewing edits to contracts or legal documents. (5) Comparing API responses or config files. (6) Proofreading — seeing exactly what your editor changed.