Before you submit

Read your draft against the papers you read.

Add one Word manuscript and the PDFs you drew on. Every passage that lines up with a source is marked in that source's ink, right here in your browser.

Manuscript

.docx · one file

Drop your draft here or choose a file

Sources

.pdf · files or whole folders

Drop PDFs or folders here or choose files · choose a folder

How the matching works

Clean. Both documents are lowercased and stripped of accents and punctuation.
Window overlap. The manuscript is read in overlapping 13-word windows and each source in 11-word windows, one word at a time across the whole PDF. When a pair shares 8 or more distinct words, in any order, those manuscript words are marked.
Phrase overlap. With common words removed, every 3-word phrase is compared. A source sharing at least 21 phrases also gets credit for phrases that only it contains.
Score. The similarity is the share of manuscript words marked by the sources you leave switched on.

It finds copied and lightly reworded text, not paraphrase. A match is a prompt to look, not a verdict.

Similarity

No matches

Tune matching Default settings

Set matching before you compare, or try stricter or looser matching on a report and watch the score and highlights change. On a report only the matching re-runs; PDFs aren't read again. Your settings are remembered for future checks in this browser.

Sources

Colour-blind safe colours Patterns

Hover any highlight to see its source. Switching a source off removes its highlights and its share of the score. Source figures can add up to more than the total because one passage can appear in several PDFs; a dotted underline marks those.

Read your draft against the papers you read.

Starting…