Check for Plagiarism

Checking for plagiarism before submitting academic work, publishing content, or delivering client projects is a fundamental quality step. Unintentional plagiarism -- accidentally using phrases you've read elsewhere, paraphrasing too closely, or incorporating unattributed sources -- can have serious consequences ranging from failed assignments to professional reputation damage. A quick plagiarism check takes seconds and can prevent these outcomes.

Coda One's plagiarism checker makes the process simple: paste your text, click Check Plagiarism, and review the results. The tool extracts key phrases from your writing and searches the web for matches. You get an overall originality score (0-100%), a list of matched source URLs with similarity percentages, and a per-sentence breakdown showing exactly which passages are flagged. Green means original, red means a match was found.

The per-sentence analysis is where the real value lies. Instead of a vague "your text has plagiarism" warning, you see precisely which sentences triggered the match and where the matching content lives online. This lets you address specific problem areas -- rewrite a sentence, add proper attribution, or rephrase a too-close paraphrase -- without overhauling your entire document. If you need help rewriting flagged sections, the built-in Humanize feature rewrites them into unique text automatically.