What this tool does
Text comparison measures how many insertions, deletions or substitutions separate two strings. It is useful for checking revisions or spotting whether two short passages differ.
Formula or method
similarity estimate = 1 − (edit distance ÷ longer text length)
How to use it well
Use realistic inputs, check any assumptions shown on the page, and compare the result with the rules used by your school, teacher, or assignment. CurioLift tools are designed to make the calculation transparent rather than hide it.
Frequently asked questions
Is this a plagiarism checker?
No. It only compares the two passages you provide.
Why can small punctuation changes affect the score?
Character-level comparison treats punctuation and spacing as edits.