Text Compare
Compare two blocks of text and highlight what changed. Word-level diff.
About Text Compare
Text Compare places an original passage and a modified passage in separate inputs, then builds a word-level difference view underneath them. Added content is highlighted in green, removed content is highlighted in red with a strike-through, and unchanged text remains unhighlighted. Spaces and line breaks are retained in the rendered result, helping preserve the shape of prose and small configuration snippets.
The comparison updates automatically when either side changes. It is useful when two versions look almost identical but differ by a missing phrase, changed number, punctuation mark or extra whitespace. Because the output is one combined sequence rather than two aligned result columns, you can read through the revision in context and see where the newer text diverges from the original.
The comparison is word-oriented and includes whitespace in its analysis. It does not provide line mode, case-insensitive mode, whitespace-ignore controls or automatic move detection. Capitalization and spacing edits can therefore appear as differences, and a moved paragraph may be represented as removed in one place and added elsewhere.
How Text Compare works in practice
- 1Paste the earlier or authoritative version into the Original field.
- 2Paste the newer version into the Modified field.
- 3Read the Diff panel from start to finish, treating green text as additions and red struck text as removals.
- 4Return to either field to correct accidental spacing or confirm a suspicious change; the result refreshes automatically.
Jobs this tool is built for
- Reviewing a revised paragraph before accepting edits into an essay, report or manuscript.
- Checking whether copied terms, policy wording or contract clauses changed between supplied versions.
- Finding a changed value or option in short configuration, log or plain-text snippets.
- Verifying that an editor changed only intended wording in a product description or announcement.
What you can do here
- Live word-level comparison
- Green additions and red struck-through removals
- Whitespace and line-break preservation in the result
- Side-by-side Original and Modified inputs
- Readable monospaced combined diff output
Limits and honest caveats
- Case and whitespace are significant. Normalize them yourself first if you do not want those changes included.
- Moved material is not identified as a move; it generally appears as one removal and one addition.
- The comparison runs in the browser and provides no storage or version history, so retain both source copies elsewhere.
Common questions about Text Compare
Which side should contain the newer text?
Put the baseline in Original and the revision in Modified. Green indicates material present in the revision, while red indicates material removed from it.
Can I ignore capitalization or spaces?
No. This interface compares them as supplied, so make the inputs consistent first if those differences are not meaningful.
Does the tool detect moved paragraphs?
No. Moved content generally shows as a removal plus an addition.
Are my texts stored anywhere?
The diff runs in the current browser page and disappears when you close or refresh it.
This page was written by the ToolSink team to explain how Text Compare works on this site — it is not syndicated, scraped, or spun from another publisher. How we write tool guides · Site updates · About ToolSink.
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