Document Text Compare (Diff)

Find exact line-by-line differences between two text documents instantly. 100% private, runs entirely in your browser.

Original Text126 chars
Modified Text154 chars

Client-Side Document Comparison

Finding the exact differences between two versions of a document, contract, or block of code can be incredibly tedious. Our Text Compare tool runs a highly optimized Diff algorithm directly in your browser. It instantly highlights what was added, removed, or kept the same.

Is my data uploaded anywhere?

Absolutely not. Traditional text compare sites often send your confidential paragraphs to their remote backend to be parsed by Python or PHP. We use an advanced JavaScript heuristic that executes entirely on your hardware. This guarantees that your proprietary code, legal contracts, or sensitive essays remain 100% private and protected from interception.

Use Cases

  • Programmers: Paste two blocks of source code to find the missing semicolon or changed variable.
  • Writers: Compare rough drafts with final drafts to visualize editorial revisions.
  • Lawyers & Professionals: Verify that no hidden clauses were added or removed in contract revisions before signing.

About Document Text Compare (Diff)

This is a free, fast, and fully client-side document text compare (diff) tool. All processing is done locally within your browser to ensure maximum privacy and security. No data is sent to our servers. Bookmark this page for quick access to ad-free, high-performance SEO and developer utilities.