Question 1

How does Text Diff Kit compare two texts?

Accepted Answer

Text Diff Kit compares the two plain-text versions using the detail level and options you select. Lines emphasizes structure, Words emphasizes wording, and Characters shows precise edits. The result marks additions, removals, and changed blocks without editing either input.

Question 2

Does Text Diff Kit upload my text?

Accepted Answer

The comparison is designed to run in the current page's browser memory. The text fields and comparison result are not intended to be sent to the Text Diff Kit server or saved as a cloud history. Refreshing or closing the page clears the current comparison. Cloudflare and Plausible may still process ordinary page-request data, but they should not receive the text you paste into the tool.

Question 3

What is the difference between Lines, Words, and Characters?

Accepted Answer

Lines works well for paragraphs, lists, configuration, and code-like text. Words makes sentence-level edits easier to read. Characters helps inspect precise changes in shorter text. Counts and changed blocks follow the active comparison mode, so values may differ between modes.

Question 4

Can I ignore whitespace, blank lines, or capitalization?

Accepted Answer

Yes. Ignore case treats uppercase and lowercase letters as equivalent. Ignore whitespace changes removes differences caused only by spacing or tabs. Ignore blank lines excludes empty-line changes. These settings affect the comparison only and never rewrite your input.

Question 5

What happens when I refresh or close the page?

Accepted Answer

The current text, options, and comparison are cleared because Text Diff Kit does not save them as a cloud history or browser-storage document. Copy anything you need before refreshing or closing the page. Ordinary website-request data may still be handled by Cloudflare and Plausible as described in the Privacy Policy.

Question 6

How much text can I compare?

Accepted Answer

Text Diff Kit is designed for substantial plain-text comparisons, but practical limits depend on text structure, comparison mode, browser, and device. Large text may switch to Lines and pause automatic updates to keep the page responsive. If a comparison is too large, the tool will ask you to shorten it rather than claim an unlimited size.

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