Explainpaper
Last Updated on: Feb 20, 2026
Explainpaper
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What is Explainpaper?
Explainpaper is an AI reading assistant that makes academic papers easier to understand by letting readers upload a PDF, highlight confusing text, and get plain‑language explanations on the spot. It adds an interactive chat to ask follow‑up questions, plus outline and summarization aids to speed up comprehension. Researchers and students can stay in context as they read, rather than switching tools or losing their place. A free tier provides core highlight‑and‑explain functionality, while paid plans unlock advanced features like richer outlines and deeper chat analysis. Testimonials from prominent users emphasize how it reduces review time and makes dense concepts approachable.
Who can use Explainpaper & how?
  • Students & Learners: Decode jargon and equations while studying complex topics.
  • Researchers & Academics: Speed up first‑pass reads and dig deeper with follow‑ups.
  • Data Scientists & Engineers: Clarify methods, assumptions, and implementation details.
  • Writers & Reviewers: Validate interpretations and simplify explanations for broader audiences.
  • Educators: Prepare summaries and teaching notes faster.

How to Use Explainpaper?
  • Upload a Paper: Import a PDF to the reader.
  • Highlight Text: Select confusing sentences, paragraphs, or symbols.
  • Get Explanations: Receive simplified descriptions and ask follow‑up questions in chat.
  • Use Outlines: Access summaries or structured outlines on eligible plans.
What's so unique or special about Explainpaper?
  • In‑Place Explanations: Understand sections without leaving the paper.
  • Interactive Chat: Ask questions about methods, results, and terms.
  • Learning Aids: Summaries and outlines accelerate comprehension.
  • Low Friction: Free tier and simple workflow reduce setup time.
  • Trusted by Practitioners: Endorsed by active researchers for speed and clarity.
Things We Like
  • Seamless highlight‑to‑explain flow inside the reader.
  • Helpful follow‑up chat that keeps context.
  • Time savings on dense sections and first reads.
  • Accessible free plan with meaningful utility.
Things We Don't Like
  • Advanced features sit behind a paywall.
  • Occasional over‑simplification of technical nuance.
  • Dependent on PDF text quality and formatting.
  • Limited visibility into underlying model updates.
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Pricing
Freemium

Free

$ 0.00

Unlimited highlight explanations
Ask follow-up questions
Powered by basic AI models

Pro

$ 16.00

Powered by advanced AI models
Generate summaries for the entire paper
Save your highlights and explanations
Ask questions about your paper

Teams

Contact sales

Everything in Pro
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FAQs

Explainpaper is an AI tool that explains confusing parts of research papers directly inside an in‑browser reader.
Yes. The free plan covers core highlight‑and‑explain features, with paid plans for advanced tools.
Yes. It offers summaries and outlines, with richer outputs on premium plans.
Yes. An integrated chat allows clarifying questions and deeper dives.
PDFs are supported for upload and in‑place reading.

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Editorial Note

This page was researched and written by the ATB Editorial Team. Our team researches each AI tool by reviewing its official website, testing features, exploring real use cases, and considering user feedback. Every page is fact-checked and regularly updated to ensure the information stays accurate, neutral, and useful for our readers.

If you have any suggestions or questions, email us at hello@aitoolbook.ai