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Document Comparison

Compare original and edited text, inspect changes and download a difference report.

Paste original and edited text, or load UTF-8 TXT files. Text stays in memory and is not saved or uploaded. Word-level comparison preserves whitespace and Unicode. This compares text, not PDF/Word formatting.

Up to 100,000 characters per text. Complex differences can exceed the local computation budget; shorten the selection and retry. Escape cancels processing.

How to use this tool

  1. Paste original text and edited text, or load two UTF-8 TXT files.
  2. Compare the texts to highlight additions and removals. The legend and semantic insert/delete markup distinguish changes beyond color.
  3. Review the highlighted wording. This is a text comparison; Word/PDF formatting and visual layout are not compared.
  4. Download a plain text difference report. Text stays in browser memory and is cleared when you close the page.

Try a known example

The working example changes the invoice total from 123.45 to 128.45 and Monday to Tuesday. These are synthetic values for demonstrating differences.

Try a working example

Questions and useful limits

Can I compare PDF layouts or Word formatting?

This tool compares pasted text or UTF-8 TXT files. Use PDF to Text to extract reviewed wording first. It does not compare page geometry, styles or document metadata.

Does it ignore whitespace?

No. Word-level comparison retains spaces, line breaks and Unicode. The downloaded report labels added, removed and unchanged text.

Why can a large comparison stop?

Character, difference and time budgets protect your browser. If a comparison is too complex, shorten the selection and retry. Inputs are retained on failure or cancellation.

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