Compare two text versions and review additions and deletions

Paste an original and a revised passage to see additions and removals in one view. Review the changes, then copy or download a marked TXT version.

Paste two versions to see what changed

Processed in your browser · saves drafts when allowed Ready
Differences

Compare two text versions in three steps

01

Paste original and revised text

Put the original in the left box and the revised version in the right box. Use the sample to see the markings before pasting your own text.

Read differences in the right direction

You seeMeaningWhat to check
Green / [+ …]Present in the revised version, absent from the original.Reread the sentence after the addition, especially numbers, names and links.
Red / [- …]Present in the original, absent from the revised version.Confirm the removal was intentional. Swapping the two inputs reverses additions and removals.
Zero changesThe two inputs match under the current literal comparison.Check that you pasted the intended versions; the tool does not judge meaning or originality.

When too much text is highlighted

Spacing or line breaks differ
The tool compares literal text, including whitespace and letter case. Check both versions before treating every highlight as a content change.
Very long text
For long inputs, the result may switch to line-level comparison and run more slowly depending on your device. Split the text into smaller passages for finer detail.
Need to compare files
This page compares pasted text. If you need to select text files or PDFs with a text layer, use Compare Files Online.

Where are the two texts and result kept?

Comparison runs in your browser. When local storage is allowed, both inputs are saved on this device for your next visit; select Clear to remove the draft and visible result. A downloaded TXT file remains wherever you saved it.

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