Explainpaper is an AI-powered tool designed to help researchers, students, and academics read and understand complex research papers significantly faster. By uploading a PDF, users can highlight any confusing sentence or term and instantly receive a plain-language explanation generated by a large language model that understands the full context of the paper.

The platform supports adjustable explanation complexity, ranging from beginner to expert level, and provides explanations in over 50 languages, making it accessible to a global research audience. Users can also engage in a conversational Q&A mode, asking follow-up questions about the paper and receiving answers grounded in its actual content rather than general knowledge.

Explainpaper also offers auto-generated structural insights, including smart outlines, key point extraction, and concept relationship mapping. These features allow users to quickly grasp the core arguments and findings of a paper without reading it in its entirety. The Pro plan adds math formula and figure explanations, full-paper summaries, and the ability to save highlights and explanations for future reference.

A Teams plan is available for organizations requiring team management, priority support, and volume discounts. The free tier provides unlimited highlight explanations and follow-up questions with no credit card required.