How to Compare Text Online

This online text diff tool compares two pieces of text and highlights what was added, removed, or left unchanged. It is useful for code snippets, copywriting drafts, contract paragraphs, product descriptions, emails, configuration files, Markdown documents, and general text review.

Line diff and word diff

Line diff is best for code, contracts, configuration files, lists, and structured paragraphs. It compares both sides line by line so you can quickly see which lines changed.

Word diff is better for copywriting, articles, contract sentences, and natural language text. It splits content into words, punctuation, and spaces, then highlights smaller edits such as changed numbers, dates, prices, names, terms, or wording.

Common use cases

Compare code snippets and review which lines changed.
Compare contract clauses and check dates, amounts, obligations, and wording.
Compare SEO titles, meta descriptions, product copy, and marketing drafts.
Compare Markdown, JSON, YAML, configuration snippets, and documentation.
Compare emails, announcements, support replies, and policy text.

How to get better diff results

Use line diff for code and structured files. Use word diff for natural language and sentence-level review. For contracts and long documents, start with line diff to locate changed paragraphs, then switch to word diff to inspect the exact wording.

Local browser processing

The comparison runs locally in your browser. Your text is not uploaded to a server. This makes the tool suitable for internal drafts, client messages, contract text, code snippets, and operational copy. For highly confidential content, use a trusted device and browser environment.

Export diff results