Name: Explainpaper
Price: Freemium

What is Explainpaper?

Explainpaper does one thing well: it makes dense academic writing legible. You upload a PDF, highlight whatever is confusing, and it explains that passage in plain language, with the option to ask follow-up questions until the concept lands. Because explanations are anchored to the specific text rather than the whole document, it works well for methods sections, unfamiliar notation and jargon-heavy passages that a general summary would skip past. Two things to weigh. The narrow focus is the point: it does not manage references, map literature or extract data, so it complements a reference manager rather than replacing one. And explanations come from a language model reading the paper, so they can smooth over genuine subtleties or state something the paper does not quite say. Treat it as a reading aid that gets you to comprehension faster, not as an authority on what a paper means.

Key Features

Highlight and Explain Any TextUnlimited Follow-Up QuestionsAI Paper SummarizationSmart Outline GeneratorHighlight History TrackingGPT-4 Powered Explanations (Pro)Equation and Table ExplanationMulti-Field CoverageSaved Paper LibraryPDF Upload SupportDark Mode ReaderLight and Comfortable Reading Modes7-Day Pro TrialWeb-Based No Install RequiredMulti-Paper Analysis (Coming Soon)Paper Search (Coming Soon)

How to Use Explainpaper

1Go to explainpaper.com and upload any research PDF for free

2Highlight any confusing text, equation, or technical term

3Read the AI-generated plain-language explanation in the side panel

4Ask follow-up questions to go deeper into any concept

5Upgrade to Pro for GPT-4 explanations, paper summaries, and smart outlines

✅ Best For

Interdisciplinary researchers and scientists who frequently read papers from adjacent fields and need quick, accurate explanations of unfamiliar terminology without losing hours to background reading.
Undergraduate and master's students who are reading peer-reviewed papers for the first time and need a patient, always-available guide to walk them through dense methodology and results sections.
Science journalists, policy researchers, and curious non-specialists who need to accurately interpret complex academic findings without the training to parse field-specific jargon.

❌ Not For

Researchers who need a full literature review pipeline, citation management, systematic review tools, or paper discovery features, as Explainpaper is focused exclusively on explaining single uploaded documents.
Teams needing multi-user collaboration, shared annotation libraries, or integration with reference managers like Zotero, since Explainpaper is built as a solo reading comprehension tool.

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Pricing

Free$0

✓Unlimited highlight explanations and follow-up questions
✓forever

Plus$12/mo

✓Paper summaries
✓highlight history
✓paper search (coming soon)

Pro$20/mo

✓GPT-4 powered
✓multi-paper analysis (coming soon)
✓all Plus features

Prompts to Try

Explain what this equation means in plain English

What does the term confounding variable mean in this methodology section?

Summarize the key findings of this paper in three bullet points

Use Cases

A computer science student uploading a dense transformer architecture paper highlights three paragraphs she doesn't understand and receives clear analogies from Explainpaper's AI, enabling her to write her seminar summary confidently without asking her professor for help.

A cardiologist reading outside his specialty uploads a neuroscience paper on vagal tone and asks Explainpaper to explain the statistical methodology, getting an accurate plain-language breakdown that lets him evaluate the study's reliability in 10 minutes.

A science policy researcher uses Explainpaper to work through five climate science papers in a single afternoon, highlighting key claims and getting explanations she uses to write a briefing document for government officials.

A high school teacher uploads a simplified biology research paper and uses Explainpaper to prepare class discussion questions by having the AI explain complex terms she wants to turn into teaching moments.

A startup founder reads a competing academic paper on battery degradation and uses Explainpaper to understand the materials science sections, extracting relevant insights for his product team without hiring a specialist consultant.

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