
A free, AI-powered academic search engine for 240M+ papers across every scientific field
A free, AI-powered academic search engine for 240M+ papers across every scientific field
Explain Selected records 0 monthly visits with — month-over-month growth and Free pricing. ExplainPaper records 26,016 monthly visits with -39.3% growth and Freemium pricing.

Highlight any text, get the right definition and a plain-language explanation
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | chromewebstore.google.com | explainpaper.com |
| Pricing Model | Free | Freemium |
| Monthly Visits | 0 (0) | 26.02K (26,016) |
| MoM Traffic Delta | 0 (—) | -16.81K (-39.3%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (28.1%) |
| Direct Visits / mo | 0 | 9.69K |
| User Rating | 3.8 | 4 |
| Supported Platforms | Browser Extension | Website |

Highlight any text, get the right definition and a plain-language explanation
ChatGPT infers which sense of a word fits the sentence you highlighted, instead of dumping every dictionary entry at once.
Matching dictionary entries and audio pronunciation are pulled in so you can hear as well as read the word.
Select text and click the purple circle that appears — no popup windows, no copy-pasting into a separate tab.
Add words you want to remember to a personal list so you can review them later.
Highlight dense research text and get plain-language explanations instantly
Select any confusing sentence or term and receive an immediate plain-language explanation that accounts for the rest of the paper.
Shift the reading level from beginner-friendly to expert-detail so the explanation matches your background.
Ask questions and get answers grounded in the document's actual content, with references back to the relevant sections.
Produce a smart outline, key-point extraction, and concept relationship views without reading the entire paper first.

A free, AI-powered academic search engine for 240M+ papers across every scientific field
A free, AI-powered academic search engine for 240M+ papers across every scientific field

AI research platform for reading, understanding and writing scientific papers
AI research platform for reading, understanding and writing scientific papers
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
Chat with any PDF, video, or website and get cited answers in seconds

Map the literature around the papers you love—free
Map the literature around the papers you love—free
Explore the academic literature as a visual graph of related papers
Explore the academic literature as a visual graph of related papers

Screen thousands of papers down to the studies that matter
Screen thousands of papers down to the studies that matter
AI-powered platform to read, write, and stay current with research

Read aloud webpages, PDFs, Kindle books and AI answers with synced highlighting
Read aloud webpages, PDFs, Kindle books and AI answers with synced highlighting

One AI agent for finding, reading and writing with real research
One AI agent for finding, reading and writing with real research

Turn any webpage, PDF, Doc or ebook into natural-sounding speech in 60+ languages
Turn any webpage, PDF, Doc or ebook into natural-sounding speech in 60+ languages
AI summaries and study guides for scientific papers
AI summaries and study guides for scientific papers