PlagScan, from Ouriginal

PlagScan, now from Ouriginal (the company formed from the merge of PlagScan and Urkund in September 2020), is a browser-based web service that investigates the authenticity of documents and detects plagiarism. The vendor states the service is compatible to all common file formats (MS Word, PDF and many more) and incorporates billions of documents, including research papers and academic journals.