Text Diff Checker
Compare two texts and see exactly what was added or removed.
Comparing two versions of a text by eye is slow and error-prone.
About Text Diff Checker
Paste an original text and a changed text to see a line-by-line comparison with additions in green, removals in red and word-level highlights inside changed lines. Ignore case or extra spaces, swap the sides and get a summary of what changed. Everything runs in your browser.
Comparing two versions of a text by eye is slow and error-prone. Paste an original and a changed version here and this tool shows exactly which lines were added or removed, with the changed words highlighted inside modified lines.
How to use Text Diff Checker
- Paste the original text on the left and the changed text on the right.
- Optionally ignore case or extra spaces.
- Read the highlighted result: green lines were added, red lines were removed.
Key features
- Line-by-line comparison with word-level highlights.
- Summary of lines added, removed and unchanged.
- Ignore-case and ignore-spaces options, plus a swap button.
- Private — nothing is uploaded.
Common use cases
- Checking edits between two drafts of a document.
- Comparing configuration files, lists or code snippets.
- Spotting small differences in contracts or copy.
Frequently asked questions
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