Text Diff Checker

Compare two texts side by side and highlight what changed. Free, private and instant.

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How to use the Text Diff Checker

Paste or type your input into the box above.
Choose any options you need. Results update as you type.
Copy the result with the Copy button.

About this tool

Paste an original and a changed version to see added and removed lines highlighted. Handy for comparing drafts, config files and code.

Text Diff Checker is part of ToolStack Hub's Text Tools. It runs entirely in your browser, which keeps your data private and makes results instant. There is nothing to install, no account to create and no usage limit.

Frequently asked questions

Is the Text Diff Checker free?

Yes. Text Diff Checker is completely free with no sign-up, limits or watermarks.

Is my data private when I use the Text Diff Checker?

Yes. It runs in your browser, so your input is not uploaded to our servers.

Does it work on mobile?

Yes. ToolStack Hub tools work on phones, tablets and desktop browsers.

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