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Text Compare

Find differences between two texts

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Text comparison highlights word-level and line-level differences between two text blocks — additions, deletions, and modifications — color-coded for fast review. LlamaPDF runs Google's diff-match-patch library directly in your browser. Useful for contract drafts, code revisions, or translation versions.

Your file stays on your device — never uploaded

How to compare two texts

  1. 1

    Paste or type the original text into the left panel and the modified text into the right panel.

  2. 2

    The tool automatically highlights differences between the two texts — additions, deletions, and changes are color-coded for clarity.

  3. 3

    Review the highlighted diff to identify exactly what changed. Copy the results or use them as a reference. Everything runs in your browser — no text is sent to any server.

Why use our text comparison tool?

Spotting differences between two versions of a document, contract, email, or code snippet by eye is unreliable — especially in long texts where changes may be subtle. Our text diff tool highlights every insertion, deletion, and modification so you can review changes confidently and quickly. It is invaluable for reviewing contract revisions, checking edited drafts, comparing configuration files, or verifying that a translation matches the original structure.

All comparisons run locally in your browser — no text is stored or sent to any server, making it safe for confidential content. Pair this with our word counter to track how length changed between versions, or use the case converter if you need to normalize text before comparing.

Frequently Asked Questions

How does the text comparison work?

Paste your original text on the left and modified text on the right. The tool uses a diff algorithm to detect exact changes — insertions, deletions, and modifications — and highlights them with colors.

Can I compare code or programming files?

Yes. The tool works with any plain text including source code, JSON, XML, CSV, and configuration files. It compares character-by-character for precise results.

Is there a character limit?

The tool works well with texts up to 100,000 characters. Very large texts may take a moment to process since everything runs in your browser.

Can I download the diff result?

Yes. You can copy the diff to your clipboard or download it as a .txt file with insertions and deletions marked.

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