Text Diff Viewer

Compare two texts side-by-side or inline to highlight additions and deletions.

How It Works & Processing Standards

Compare two texts side-by-side or inline to highlight additions and deletions.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 2,000,000 characters

Text Diff Viewer is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Text Diff Viewer

  1. 1
    Input Original TextPaste the baseline text on the left panel.
  2. 2
    Input Modified TextPaste the revised text on the right panel.
  3. 3
    Inspect DiffView highlighted insertions (green) and deletions (red) in real time.

Common Use Cases

  • Comparing draft contract clauses against finalized versions
  • Reviewing configuration file differences across staging and production environments
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