How to use
Place the original on the left and the compared version on the right, then compare.
TextoLab · Works in your browser
Text Compare
Compare two text versions with a local visual diff.
✓ Your text stays in your browser.
Result
How it works
A deterministic sequence comparison marks matching, added, and removed text, then summarizes word changes and similarity. Very large inputs use a bounded fallback.
Understanding the result
Green marks additions and red marks removals; labels always accompany the colors.
Practical example
Compare an edited contract clause, two article drafts, release notes, or translated revisions supplied by you.
Limitations
Similarity is a word-based structural estimate. Very large comparisons use a bounded fallback.
Common question
Is either version uploaded?
No. Both texts are compared entirely in your browser.
What this tool checks and changes
- Highlights text added to and removed from the compared version.
- Calculates word and character differences.
- Provides a transparent overlap score for the two supplied texts.
Practical uses
- Reviewing an edited article or policy.
- Checking what changed between translations.
- Comparing release notes or contract clauses.
Text Compare
A reliable three-step workflow
The processing remains in this browser; the supplied text is not sent to an external text-processing service.
- 1
Start with the original
Paste the complete text and preserve the parts whose structure matters.
- 2
Choose only relevant options
Each option changes a specific rule. Leave unrelated settings off.
- 3
Review before using the result
Read the output in context, then copy it only after confirming the intended meaning and formatting.