Comparison of Text – Compare Two Texts & Find Differences
Paste two versions of a text and instantly see what changed. This comparison of text highlights added and removed lines side by side, counts the differences, and can ignore case or spacing. Perfect for checking edits, contract versions, code, or any two blocks of text. Free, no sign-up, and everything runs in your browser.
Enter text in both boxes, then compare.
This free comparison of text tool lets you compare two texts and see exactly what changed between them. Paste an original version on one side and a changed version on the other, and it highlights added and removed lines, counts the differences, and shows everything side by side. This kind of text to text comparison is perfect for checking edits to a document, spotting changes between two contract versions, reviewing code, or confirming whether two blocks of text are identical. You can also ignore case or spacing so only the meaningful differences stand out. Everything runs in your browser, with no sign-up. Paste your two texts above and click compare.
What does this tool do?
It performs a line-by-line comparison of two texts and shows the result clearly:
- Highlights added lines in green and removed lines in red.
- Keeps unchanged lines visible for context, with line numbers on both sides.
- Shows a summary count of added, removed, and unchanged lines.
- Options to ignore case and ignore spacing so trivial differences do not clutter the result.
Why use this tool?
Spotting the difference between two versions of a text by eye is slow and easy to get wrong, especially in long documents. A proper comparison of text does the work for you, pinpointing every change so nothing slips through, whether you need a quick check or a careful, line-by-line review. It is invaluable when you need to know precisely what was edited — whether that is a revised paragraph, a changed clause in an agreement, or an altered line of code — and it can confirm in an instant whether two texts are exactly the same.
How the tool works
- Both texts are split into lines, and the tool finds the longest sequence of lines they have in common.
- Lines that appear only in the original are marked as removed; lines only in the changed version are marked as added.
- A changed line shows up as one removed line and one added line, so you can see both versions.
- If you enable ignore case or ignore spacing, those differences are treated as equal when matching lines.
How to use the tool
- Paste the original text in the left box.
- Paste the changed text in the right box.
- Optionally tick Ignore case or Ignore spacing.
- Click Compare Texts.
- Review the highlighted differences and the summary counts.
Practical examples
Document edits
Compare two drafts of an article or report to see exactly which lines were changed.
Contract versions
Check what was altered between two versions of an agreement before signing.
Code review
Spot changes between two snippets of code quickly, line by line.
Are they identical?
Confirm in one click whether two blocks of text are exactly the same.
Common use cases
- Writers & editors: comparing drafts and tracking revisions.
- Legal & business: checking changes between document versions.
- Developers: reviewing differences between two pieces of code or config.
- Students & researchers: comparing quotations, notes, or sources.
Tips & best practices
- Turn on ignore spacing when only wording matters, not indentation or extra spaces.
- Turn on ignore case to treat capitalized and lowercase text as the same.
- Paste text with its original line breaks — the comparison works line by line.
- Use the summary counts to gauge how much changed at a glance.
Frequently Asked Questions
How do I do a comparison of text?
Paste one version in each box and click Compare Texts. This comparison of text highlights added and removed lines and shows a summary of the differences.
Can it tell me if two texts are identical?
Yes. If there are no differences, it tells you the two texts are identical.
Does it compare line by line or word by word?
It compares line by line, which is the clearest way to see changes in documents, contracts, and code. A changed line appears as one removed and one added line.
What do ignore case and ignore spacing do?
They tell the tool to treat differences in capitalization or in spacing as equal, so only meaningful changes are highlighted.
Is there a limit on text length?
There is no fixed limit. Very large texts may take a moment to process, but everyday documents compare instantly.
Can I compare code?
Yes. Code compares well line by line. Use ignore spacing if indentation differences are not important to you.
Is my data private?
Yes. The comparison runs entirely in your browser and nothing is sent to a server. Your text is saved locally on your own device for convenience.
Is the tool free?
Completely free, with no account and no limit on how many comparisons you make.