Compare Two Texts

How to compare text

1. Paste the original text on the left and the new version on the right.
2. Choose whether spaces within each line should be normalized.
3. Run the comparison and review additions and removals side by side.
4. Edit the input and compare again, or clear both fields.

Find exact changes without sending your text away

The comparison works line by line. A changed line appears as a removal from the original and an addition to the new version. Line labels and plus/minus signs supplement the highlight colours. It compares literal text, not meaning or authorship.

The whitespace option trims each line and treats runs of spaces or tabs as one space. Blank-line additions and deletions still count. Line endings are normalized so Windows and Unix newline conventions can be compared together.

Very large or heavily changed inputs may exceed the comparison time budget on your device. The work runs in a worker so it can stop without freezing the page. Compare smaller sections if necessary. No claim is made that similar text is plagiarism or that different text changes meaning.

Privacy and browser support

Your input is handled in this browser tab. Selected files and entered text are not sent to Varento Tools by this tool. Some specialized libraries load only when needed. A browser with JavaScript and sufficient device memory is required. Read our local-processing explanation.

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Frequently asked questions