Question: I'm looking for a multilingual plagiarism detection tool that supports languages other than English.

If you need a multilingual plagiarism detection tool, Copyleaks is a strong contender. It offers support for more than 100 languages for plagiarism detection and a range of products including AI Detector, Plagiarism Detector and Writing Assistant. It also offers direct integration with Learning Management Systems and a fully customizable API. Copyleaks is focused on data security and privacy, so it's a good choice for institutions and companies.

Another strong contender is Crossplag, which offers cross-lingual plagiarism detection across more than 100 languages. It includes an AI Content Detector and ultra-fast verification that compares texts with more than 100 billion texts around the world. Crossplag is designed to protect data and intellectual property rights while offering a customizable and affordable option for individuals, educational institutions and businesses.

If you're looking for a more comprehensive academic integrity platform, Turnitin is worth a look. It uses sophisticated AI writing detection technology to spot AI-generated content and plagiarism, and offers a range of tools like originality checks, feedback and grading tools. It's geared for the educational market, including higher education and secondary education, so it's a good choice if you're looking for a one-stop shop for academic integrity.

Last, Quetext offers a powerful plagiarism checker using its DeepSearch technology. It can handle multiple languages and offers contextual analysis and word placement to spot AI-generated content and plagiarism. Quetext offers a range of subscription plans for individuals, small groups and large organizations, so it's a good option for those who want to maintain academic integrity and produce high-quality content.