Comparator
Text Diff Checker
- Compare
- Mobile Friendly
- Accessibility Tested
- SEO Optimized
- Fast Loading
- Responsive
Version 1.0.0 · Last reviewed
How it worksShow guide
Introduction
Paste an original and a revised draft to see what was added, removed, or left unchanged. The comparison uses a Myers diff on tokens — not a screenshot overlay — and never uploads your copy.
Step-by-step
- Paste the original on the left and the revision on the right
- Choose lines, words, or characters
- Read the highlighted diff or copy a unified patch
Worked example
The shared first line stays; “old” is removed and “new” is added.
Use cases
- Review copy edits before publishing
- Check config or JSON snippets (pair with the JSON formatter)
- See word-level changes in a paragraph
Frequently asked questions
Does my text leave the browser?
No. Diffing runs locally. Copying uses your clipboard only.
Line, word, or character mode?
Lines are best for code and articles. Words catch sentence edits. Characters are for tiny strings. Very large token counts may still be limited so the tab stays responsive.
Is this the same as git diff?
It uses the same Myers idea on tokens you choose. It is not a git repository tool and does not read files from disk unless you paste them.
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