If you're looking for a general-purpose tool that can scan for plagiarism in a variety of file formats, DupliChecker is a good option. It can handle .tex, .txt, .doc, .docx, .odt, .pdf and .rtf files. The tool uses AI technology to spot even small plagiarism problems and offers features like instant plagiarism removal, grammar check and paraphrase. DupliChecker works in multiple languages and offers writing help, too, so it's good for personal and professional use.
Another powerful option is Originality, geared for web publishers, content marketers and writers. It offers a range of tools, including an AI content detector, plagiarism checker, fact checker and readability scorer. Originality offers a process to ensure content is original and of high quality, so it's good for those who need to ensure their content is accurate and authentic.
Paperpal is a specialized tool for academic writing that offers context-sensitive language suggestions, accurate plagiarism detection and real-time grammar checking. It also offers high-quality academic translations and a paraphraser that maintains a formal tone. It's good for authors and researchers who need to ensure their work is high quality and original.